docs: FEDERATION.md tested against six peers with signed fetches, the shipped FEPs; v1.19.1 and v1.20.0 in ROADMAP

- FEDERATION.md: - It said only GoToSocial was tested live. It now lists all six pasture peers, run with signed fetches required as production runs, and what is checked both ways. - FEP-044f, FEP-9967, FEP-c0e0 and FEP-5feb moved from planned to supported. - indexable and discoverable are described as the settings they are. - ROADMAP: v1.19.1 deployed and verified, v1.20.0 (phase 4). - Pasture, Akkoma: its like and boost count gets two minutes. In the final clean pass, all six peers with SecureMode on gave 245 passed, 1 failed, 4 expected. The failure was this count, which Akkoma's job queue was slow to update under the load of six peers; two reruns gave 44/44. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2
Everything on, phase 4b: ids that resolve, a hashtag page, grouped notifications, remote accounts' real counts
2026-10-04 04:16:16 +02:00 · 2026-10-04 03:56:18 +02:00 · 2026-10-04 03:48:40 +02:00 · 2026-10-04 03:46:48 +02:00 · 2026-10-04 03:34:48 +02:00 · 2026-10-04 03:16:59 +02:00
65 changed files with 2130 additions and 392 deletions
@@ -95,6 +95,11 @@ jobs:
          [ "$served" = "$BUILD_COMMIT" ] || { echo "::error::served build is '$served', expected '$BUILD_COMMIT'"; exit 1; }
          code=$(curl -s -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$PUBLIC_URL/peasants/privapub")
          [ "$code" = "200" ] || { echo "::error::the instance actor answered $code"; exit 1; }
+          # SecureMode (owner decision 2026-10-04): an unsigned reader gets 401 from a persona, a browser the public page
+          code=$(curl -s -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$PUBLIC_URL/peasants/thepra")
+          [ "$code" = "401" ] || { echo "::error::an unsigned GET of a persona answered $code, not 401: SecureMode is off"; exit 1; }
+          code=$(curl -s -o /dev/null -w '%{http_code}' -H 'Accept: text/html' "$PUBLIC_URL/peasants/thepra")
+          [ "$code" = "302" ] || { echo "::error::a browser asking for a persona got $code, not a redirect"; exit 1; }
          code=$(curl -s -o /dev/null -w '%{http_code}' "$PUBLIC_URL/.well-known/nodeinfo")
          [ "$code" = "200" ] || { echo "::error::nodeinfo answered $code"; exit 1; }
          code=$(curl -s -o /dev/null -w '%{http_code}' "$PUBLIC_URL/swagger/index.html")
@@ -123,7 +128,7 @@ jobs:
          read -r token cid cs <<< "$(tools/smoke/oauth.sh "$PUBLIC_URL" "$login" "$password" thepra read)"
          echo "::add-mask::$token"
          tools/smoke/mastodon-api.sh "$PUBLIC_URL" "$token"
-          discoverable=$(curl -fsS -H 'Accept: application/activity+json' "$PUBLIC_URL/peasants/thepra" | python3 -c "import json,sys; print(json.load(sys.stdin).get('discoverable'))")
+          discoverable=$(curl -fsS -H "Authorization: Bearer $token" "$PUBLIC_URL/api/v1/accounts/verify_credentials" | python3 -c "import json,sys; print(json.load(sys.stdin).get('discoverable'))")
          [ "$discoverable" = "False" ] || { echo "::error::@thepra is discoverable"; exit 1; }
          curl -fsS -o /dev/null -X POST "$PUBLIC_URL/oauth/revoke" --data-urlencode "token=$token" \
            --data-urlencode "client_id=$cid" --data-urlencode "client_secret=$cs"
@@ -182,8 +182,17 @@ group www-data and reaches the private mongod; `sudo -u www-data` works too.
   `ContentFormat` says what `Text` holds. Remote names are plain text.
 8. **Circles federate to members only.** A circle is an undiscoverable Group actor that takes follow requests (the owner
   approves); its posts are addressed to the circle and its `/flock`, delivered to members' personal inboxes, never
-   announced, and served only to a signed request from a member or a member's instance actor
-   (`SignedFetchAuthorizer`), 404 otherwise. Circles never appear in search, lookups, mentions or profile pages.
+   announced. Each member's copy also names that member in `cc` (`OutboxPublisher.Naming`, owner decision
+   2026-10-04), because Mastodon and GoToSocial keep a post only when it names one of their accounts; Create, every
+   Update and the Delete all go through `OutboxPublisher.Publish` for that. A reply to a circle post stays in the circle,
+   and a circle post never asks a non-member for a quote. Circles never appear in search, lookups, mentions or profile
+   pages.
+   **A post that is not public is served only to a signed request from someone it was for** (`SignedFetchAuthorizer.MayRead`):
+   a follower or an addressed account for followers-only, an addressed account for a DM, a member for a circle, or the
+   instance actor of a server where one of them lives; 404 to anyone else, 410 to them once it is deleted. A circle
+   refetch names the requesting member, or the members on the requesting server. A DM's `context`
+   (`/peasants/{name}/whispers/{id}`) lists the conversation's posts for its participants. Mastodon deletes its copy
+   when a refetch answers 404, which is why this matters.
   **Communities** are FEP-1b12 groups: `GroupDistributor` announces the whole activity (plus the object for new posts,
   for Mastodon), top-level posts are `Page`s with a `name`, posting follows `Group.PostingPolicy`.
   Located posts (`LocalGeo`) are the only local-only posts.
@@ -192,13 +201,20 @@ group www-data and reaches the private mongod; `sudo -u www-data` works too.
 10. **Nothing slow happens inside a request.** Deliveries and inbox processing are `Job`s (`Infrastructure/Jobs`):
    leased, retried on Mastodon's curve, at most two per host, paused per host by `RemoteInstance`. The inbox answers
    202 once it has verified and queued; a handler must be idempotent (unique `ObjectURI`, job `DedupeKey`).
-11. **Every "may anyone see this" goes through `VisibilityPolicy.IsPublic`;** a persona-specific read uses `CanSee`, and
+11. **Every number about posts and users goes through `Domain/Privacy/Counted`** (owner decision 2026-10-04: one
+    answer everywhere): a persona's `statuses_count`, its outbox `totalItems`, NodeInfo `localPosts` and the instance
+    `status_count` all count Mastodon's way (not deleted, not a DM, boosts included, circle and located posts too);
+    users exclude personas of banned or deleted roots; `replies_count` counts only public and unlisted replies; a
+    remote account that deletes itself takes its likes, votes, reactions, boosts and replies out of every count
+    (`GoneActors`). Follower and following counts are public, their members never are (`hide_collections` is always
+    true).
+12. **Every "may anyone see this" goes through `VisibilityPolicy.IsPublic`;** a persona-specific read uses `CanSee`, and
    any other read of stored posts filters by `IsShown`. All three hide deleted posts and the posts of a remote account
    that deleted itself (`Post.AuthorGone`: kept, hidden everywhere, owner decision).
-12. **Remote content is stored only when someone here asked for it:** a persona follows the author, is addressed or
+13. **Remote content is stored only when someone here asked for it:** a persona follows the author, is addressed or
    mentioned, it replies to a local post, or it is addressed to a community the author follows; a public parent is
    fetched as context. Followers-only is detected by the author's stored `followers` URL.
-13. **Home timelines are written, not computed:** every stored or created post goes through `Fanout.Distribute`, and
+14. **Home timelines are written, not computed:** every stored or created post goes through `Fanout.Distribute`, and
    every delete removes its `TimelineEntry` rows. Local deletes are soft (content cleared, 410 Tombstone).

 ## Mastodon client API invariants
@@ -214,7 +230,9 @@ group www-data and reaches the private mongod; `sudo -u www-data` works too.
   error that leaves without a body (a challenge, a 404 from routing, a 429) gets Mastodon's `{"error": ...}` from
   `UseMastodonErrorBodies`. `NeverFiveHundredTests` walks every route with junk ids, anonymously, as a persona and
   with a junk token.
-6. Advertise `4.2.0 (compatible; PrivaPub)` until grouped notifications exist.
+6. Advertise `4.2.0 (compatible; PrivaPub)` until streaming and Web Push exist too; `api_versions.mastodon = 7` stays,
+   because clients show quotes from it, so everything a 4.3+ client calls because of it must answer: grouped
+   notifications (`/api/v2/notifications`, its unread count, groups, accounts and dismiss) and the notification policy.
 7. **What a Mastodon `Status` cannot say goes in `Status.privapub`** (`PrivaPubStatus`): object type, title, excerpt,
   cover, the author's source, link, video, audio and event details, and up/down votes. Every media URL in it goes
   through the proxy; only page links (`link.url`, an event's online link) point at the remote site, because following
@@ -243,6 +261,16 @@ group www-data and reaches the private mongod; `sudo -u www-data` works too.

 - **No root id in federation output, NodeInfo or logs, no IP next to an identity in logs, and no `ex.Message` to a
  client** ("Something went wrong." instead).
+- **Sign-in and recovery never tell which logins or addresses exist** (owner decision 2026-10-04): every failed sign-in
+  gets "That username and password do not match." after the same hashing (`RootUsersService.Decoy`, a constant-time
+  comparison), and only a correct password learns of a ban. Every recovery request answers the same sentence and
+  queues a `SendRecovery` job, found or not; `RecoveryJob` sends the email and keeps only a SHA-256 of the code, for an
+  hour. A recovered password ends every session of the root (`RootSessions`: a new `SessionStamp`, which every `/clientapi`
+  JWT carries, and OpenIddict revocation for each persona).
+- **Deleting a root deletes everything public it had** (`RootRemoval`, from the admin route or `/clientapi/user/delete`
+  with the password): its sessions end, each persona and each group it owns sends `Delete{Actor}` to followers, members
+  and the accounts it follows, the personas' posts are emptied, and `/peasants/{name}`, its inbox and WebFinger answer
+  410 (`LocalActorService.Gone`) while the names stay reserved. The root keeps only a `deleted-{id}` name.
 - **Never derive a public name from the root username.** Invitation sign-up takes `AvatarUserName` and refuses one
  equal to the login.
 - **One username space:** personas, groups and the instance reserve their name in `ReservedName` (unique index) before
@@ -412,14 +440,17 @@ tools/pasture/run.sh down                                            # removes e
    delete is checked as a 404 on `/api/v1/statuses/{id}`.
  - It creates its accounts locked, so the scenario approves alice's request through `/api/v1/follow_requests`, which
    also checks our pending (`requested`) state and the manual Accept.
-  - 37 checks: discovery and follows both ways; posts and CW; a reply and its notification; likes and boosts both
+  - 55 checks: discovery and follows both ways; posts and CW; a reply and its notification; likes and boosts both
    ways; DMs both ways and off public timelines; polls both ways; quote policy; link cards; edits and deletes both
-    ways; unfollow; block and unblock; statistics.
+    ways; communities and circles; locked personas; unfollow; block and unblock; statistics.
+  - It files a circle post as a direct message and shows it only to the accounts it mentions, so like a DM it is
+    checked in the member's `/api/v1/conversations`, never by URI.
 - **Mastodon (4.7.3):** web and sidekiq on the shared Postgres and Redis, `ALLOWED_PRIVATE_ADDRESSES` for the network.
  Its token comes from `rails runner` (no password grant). Without Elasticsearch its status search finds nothing, so
  deliveries are checked through `/api/v1/accounts/:id/statuses` of the sender as Mastodon knows them, or
  `Status.exists?` through `rails runner`. Its actors are numbered (`/ap/users/<id>`), so look URIs up rather than
-  build them. 49 checks; circle posts are an expected failure (see `docs/INTEROP.md`, Mastodon).
+  build them. Circle posts and a followers-only post survive its signed refetch (`ActivityPub::FetchRemoteStatusService`
+  through `rails runner`). Inbound Block is the one expected failure until P7.
 - **Misskey (2026.10.0):** one container on the shared Postgres and Redis. A new Misskey federates with nobody
  (`federation: none`) until `admin/update-meta` says `all`, which `misskey_up` does. Its API is `POST /api/<endpoint>`
  with the token as `i` (`mk` in the scenario); `users/relation` answers a list, `users/notes` leaves replies out unless
@@ -441,6 +472,9 @@ tools/pasture/run.sh down                                            # removes e
  its own activity and every bare `Announce{object}` 400 by design, and the echo is still needed (see
  `docs/INTEROP.md`, Lemmy). A new Lemmy never sends what it queued for a server before its send worker for that
  server started, so the scenario waits for that worker (`lm_worker`) before its first follow. 20 checks; relayed votes and a moderator's removal are expected failures (P7).
+- **SecureMode:** `PRIVAPUB_ENV="Federation__SecureMode=true" run.sh up …`, as production runs. A check of what an
+  unsigned reader sees uses `unserved` and `gone_unsigned` (`lib/interop.sh`), which expect 401 when SecureMode is on and
+  404 or 410 when it is off.
 - **Crawler:** `PRIVAPUB_ENV="Statistics__Crawler__Enabled=true Statistics__Crawler__Seeds__0=mastodon.test"
  run.sh up mastodon`, then `interop.sh crawler`. `PRIVAPUB_ENV` passes any setting to the PrivaPub container.
 - `run.sh up` replaces every container, Mongo included, so each run starts clean. To keep the data, republish into
@@ -12,17 +12,29 @@ PrivaPub is an ActivityPub server written in C#. This document follows

 ## Tested against

- **GoToSocial 0.22.1, end to end.** It runs in a private network on the workstation (`tools/pasture/`) and is driven
-  through its own client API. Checked both ways:
-  - follows, including to a locked account;
-  - public posts with a content warning;
-  - replies with notifications;
-  - likes and boosts;
-  - direct messages;
-  - edits and deletes;
-  - unfollow.
- **Mastodon, Misskey, Lemmy and PeerTube, by unit tests only.** The tests feed the parser documents written in each
-  server's shape. No live exchange with any of them has run yet.
+End to end, in a private network on the workstation (`tools/pasture/`), each peer driven through its own client API
+and every run starting clean, with signed fetches required (as privapub.thepra.dev runs):
+- **GoToSocial 0.22.1**
+- **Mastodon 4.7.3**
+- **Misskey 2026.10**
+- **Sharkey 2025.4.7**
+- **Akkoma 3.20.1**
+- **Lemmy 1.0.0-beta.2**
+
+Checked both ways, where the peer has the feature:
+- follows, locked accounts included;
+- every visibility, content warnings, replies and their notifications;
+- likes, boosts and emoji reactions with their undos;
+- direct messages;
+- polls;
+- quotes;
+- images with alt text;
+- edits with history and deletes;
+- communities and circles;
+- blocks and unfollows.
+
+`docs/INTEROP.md` has each peer's evidence and what is still expected to fail. PeerTube, PieFed, Mbin and the others are
+covered by unit tests written in their documents' shape.

 ## Supported FEPs

@@ -30,11 +42,16 @@ PrivaPub is an ActivityPub server written in C#. This document follows
 - [FEP-f1d5: NodeInfo in Fediverse Software](https://codeberg.org/fediverse/fep/src/branch/main/fep/f1d5/fep-f1d5.md)
 - [FEP-2c59: Discovery of a WebFinger address from an ActivityPub actor](https://codeberg.org/fediverse/fep/src/branch/main/fep/2c59/fep-2c59.md)
 - [FEP-1b12: Group federation](https://codeberg.org/fediverse/fep/src/branch/main/fep/1b12/fep-1b12.md) (communities; see "Groups")
+- [FEP-044f: Consent-respecting quote posts](https://codeberg.org/fediverse/fep/src/branch/main/fep/044f/fep-044f.md)
+  (`QuoteAuthorization` at `/parrot-licences/{id}`; checked with Mastodon both ways)
+- [FEP-9967: Polls](https://codeberg.org/fediverse/fep/src/branch/main/fep/9967/fep-9967.md)
+- [FEP-c0e0: Emoji reactions](https://codeberg.org/fediverse/fep/src/branch/main/fep/c0e0/fep-c0e0.md) (`EmojiReact`, and Misskey's
+  `Like` with content)
+- [FEP-5feb: Search indexing consent](https://codeberg.org/fediverse/fep/src/branch/main/fep/5feb/fep-5feb.md) (`indexable`)

-Planned (see `docs/ROADMAP.md`, phases P5 to P8, and the per-platform notes in `docs/INTEROP.md`): FEP-044f (quotes),
-FEP-9967 (polls), FEP-c0e0 (emoji reactions), FEP-9098 (custom emoji), FEP-7888 and FEP-f228 (threads), FEP-7628 (Move),
-FEP-8fcf (followers synchronisation), FEP-5feb (`indexable`), FEP-8967 (link attachments), FEP-521a and FEP-8b32 (keys
-and integrity proofs), FEP-ae0c (relays).
+Planned (see `docs/ROADMAP.md`, phases P7 and P8, and the per-platform notes in `docs/INTEROP.md`): FEP-9098 (custom
+emoji), FEP-7888 and FEP-f228 (threads), FEP-7628 (Move), FEP-8fcf (followers synchronisation), FEP-8967 (link
+attachments), FEP-521a and FEP-8b32 (keys and integrity proofs), FEP-ae0c (relays).

 ## Actors

@@ -58,7 +75,8 @@ The names are the project's own and are stable; resolve actors through WebFinger

 - The key is `{actor}#main-key`, RSA 2048, served as SPKI PEM with `owner` set to the actor.
 - `published` on an actor is a whole day, chosen at random up to two weeks before the account was made, so two
-  personas made on the same day do not share a date. `indexable` is `false`.
+  personas made on the same day do not share a date. `indexable` is `false` unless the persona turns it on, and
+  `discoverable` is `true` unless it turns that off (the deploy's own persona, @thepra, is undiscoverable).
 - The instance actor is `/peasants/privapub` (type `Application`). It signs every fetch PrivaPub makes, so no avatar's key
  is used to read another server's content.

@@ -73,8 +91,10 @@ A group is either a **community** or a **circle**.
  top-level post is a `Page` with a `name`. Members are counted at `/flock`; moderators are listed at `/wardens`, which
  the actor's `attributedTo` points to, with `postingRestrictedToMods` as Lemmy expects. A mention of a community posts into it.
 - A **circle** is private. Its actor is not discoverable and every follow is a request. Its posts are addressed to the
-  circle and its members collection, delivered to each member's own inbox and never announced. They are served only
-  to a signed request from a member, or from the instance actor of a member's server; anyone else gets 404. A
+  circle and its members collection, delivered to each member's own inbox and never announced. Each member's copy also
+  names that member in `cc`, so servers that keep only posts naming one of their accounts (Mastodon, GoToSocial) keep
+  it; it names no other member. The posts are served only to a signed request from a member, or from the instance actor
+  of a member's server, and that copy names the member (or the members on that server); anyone else gets 404. A
  Mastodon member's replies reach only the people they mention.
 - Announces from **remote** groups (Lemmy communities) are followed through to the activity: the object is fetched
  from its own origin, never taken from the announce.
@@ -192,12 +212,22 @@ Posts with a location (shown to nearby users of this server) never leave the ser
  deletes, must be on its actor's origin. An embedded object from another origin is fetched from that origin.
 - **Fetching.** All fetches are signed by the instance actor. They go only to public addresses, follow at most three
  redirects and read at most 1 MB.
+- **Reading our documents (SecureMode).** privapub.thepra.dev answers ActivityPub GETs only when they are signed, like
+  Mastodon's authorized fetch; the instance actor `/peasants/privapub` is the exception, since its key is needed first.
+  A browser asking for HTML is redirected to the public page instead.
+- **Posts that are not public** (followers-only, direct, circle) are served to a signed request from someone they were
+  for, or from the instance actor of a server where someone they were for lives, and to nobody else (404). Once deleted
+  they answer those same readers 410. A direct message's `context`, `/peasants/{name}/whispers/{id}`, is an
+  `OrderedCollection` of the conversation's posts for its participants.
 - **HTML.** Received HTML is sanitised to Mastodon's allowlist.
 - **Keys we cannot fetch for now.** When a sender's key cannot be fetched because its server timed out or answered
  5xx, the inbox answers 503 with `Retry-After: 300` rather than 401.
- **Activity ids.** `Create` and `Announce` ids dereference. `Follow`, `Like`, `Block` and the `Accept`, `Reject` and
-  `Undo` that answer them do not, because serving them would reveal who follows, likes and blocks whom; they are always
-  sent with their object embedded.
+- **Activity ids.** `Create` and `Announce` ids dereference, a community's announces included, until the post they
+  carry is deleted (then 410); a persona's boost id sends a browser to the boosted post. `Follow`, `Like`, `Block` and
+  the `Accept`, `Reject` and `Undo` that answer them do not, because serving them would reveal who follows, likes and
+  blocks whom. Neither do `Update`, `Delete`, `EmojiReact`, `QuoteRequest` and its answers, `Flag`, `Ignore` or poll
+  votes. All of them are always sent with their object embedded.
+- **Hashtags.** A post's `Hashtag` links go to `/tags/{tag}`, a public page of this server's public posts with that tag.
 - **Delivery.** Failed deliveries are retried with Mastodon's backoff (16 attempts). A host that keeps failing is paused,
  starting at an hour and growing to a week.

@@ -206,5 +236,7 @@ Posts with a location (shown to nearby users of this server) never leave the ser
 - Our own posts carry no custom emoji: emoji are received and shown, not offered.
 - Remote media is fetched through this server's proxy when a local client displays it. Video and audio are streamed
  through it with byte ranges passed on, so a PeerTube file is never fetched whole for one viewer.
- Collections expose counts, not members.
+- Collections expose counts, not members: `/groupies` and `/stalking` give the same totals as the Mastodon API's
+  follower and following counts, and the outbox's `totalItems` is the persona's post count, though only public posts
+  are listed. `/api/v1/instance/peers` is empty: which servers this one talks to is not published.
 - Only `rsa-sha256`-style keys are verified. RFC 9421 signatures are planned.
@@ -0,0 +1,14 @@
+using PrivaPub.ClientModels.Resources;
+
+using System.ComponentModel.DataAnnotations;
+
+namespace PrivaPub.ClientModels.User
+{
+	// Deleting one's own login, and with it every persona and group it owns, asks for the password again.
+	public class RemoveSelfForm
+	{
+		[Required(ErrorMessageResourceName = "Required", ErrorMessageResourceType = typeof(ErrorsResource)),
+			Display(Name = "Password", ResourceType = typeof(FieldsNameResource))]
+		public string Password { get; set; }
+	}
+}
@@ -60,6 +60,7 @@ namespace PrivaPub.Tests.Domain
 		{
 			public string BaseAddress => Base;

+			public Task<GoneActor> Gone(string userName, CancellationToken token) => Task.FromResult<GoneActor>(default);
 			public Task<LocalActor> FindByUserName(string userName, CancellationToken token) =>
 				Task.FromResult(userName.Equals("alice", StringComparison.OrdinalIgnoreCase)
 					? new LocalActor { Id = "a1", UserName = "alice", BaseAddress = Base, Kind = LocalActorKind.Person }
@@ -9,6 +9,7 @@ using PrivaPub.Models.Federation;
 using PrivaPub.Models.Group;
 using PrivaPub.Models.Post;
 using PrivaPub.Models.Social;
+using PrivaPub.StaticServices;
 using PrivaPub.Tests.Support;

 using System.Text.Json.Nodes;
@@ -138,21 +139,86 @@ namespace PrivaPub.Tests.Federation
 			Assert.Equal(PostVisibility.Circle, outcome.Post.Visibility);
 			var create = Assert.Single(await _harness.Outgoing(member.Id + "/inbox"));
 			Assert.Equal(new[] { circle.Uri, circle.Flock }, create["object"]!["to"]!.AsArray().Select(t => t!.GetValue<string>()));
+			// the member's copy names the member, so Mastodon and GoToSocial keep it, and names nobody else
+			Assert.Equal(new[] { member.Id }, create["cc"]!.AsArray().Select(t => t!.GetValue<string>()));
+			Assert.Equal(new[] { member.Id }, create["object"]!["cc"]!.AsArray().Select(t => t!.GetValue<string>()));
+			Assert.Contains(create["object"]!["tag"]!.AsArray(), t => t!["type"]!.GetValue<string>() == "Mention" && t["href"]!.GetValue<string>() == member.Id);
 			Assert.DoesNotContain(Addressing.Public, create.ToJsonString());
 			Assert.Empty(await _harness.Outgoing(follower.SharedInbox));
 			Assert.Empty((await _harness.Outgoing(member.SharedInbox)).Where(a => a["type"]!.GetValue<string>() == "Announce"));

-			var authorizer = new SignedFetchAuthorizer(_harness.Remote);
+			var authorizer = new SignedFetchAuthorizer(_harness.Remote, new DbEntities());
 			var path = new Uri(outcome.Post.ObjectURI).AbsolutePath;
 			var asMember = await authorizer.Requester(member.Get(Harness.Host, path), token);
 			var asOutsider = await authorizer.Requester(outsider.Get(Harness.Host, path), token);
 			Assert.True(SignedFetchAuthorizer.MayReadCircle(circleEntity, asMember));
 			Assert.False(SignedFetchAuthorizer.MayReadCircle(circleEntity, asOutsider));
 			Assert.False(SignedFetchAuthorizer.MayReadCircle(circleEntity, default));
+			Assert.True(await authorizer.MayRead(outcome.Post, asMember, token));
+			Assert.False(await authorizer.MayRead(outcome.Post, asOutsider, token));
+			Assert.Equal(new[] { member.Id }, SignedFetchAuthorizer.CircleReaders(circleEntity, asMember));
 			Assert.True(circle.IsCircle);
 			Assert.False(circle.Discoverable);
 		}

+		[Fact]
+		public async Task A_circle_posts_edit_and_delete_reach_each_member_naming_only_that_member()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var (_, alice) = await _harness.Persona("alice");
+			var first = new RemoteActor(_harness.Peer, "first");
+			var second = new RemoteActor(_harness.Peer, "second", _harness.Peer.B);
+			var (_, circle) = await Group(GroupKind.Circle, PostingPolicy.Followers, alice.Id, first.Id, second.Id);
+			await _harness.Remote.GetActor(first.Id, refresh: false, token);
+			await _harness.Remote.GetActor(second.Id, refresh: false, token);
+
+			var outcome = await _harness.Statuses.Publish(alice, new StatusDraft { Text = "just us", GroupId = circle.Id }, token);
+			await _harness.Statuses.Edit(alice, outcome.Post.ID, new StatusDraft { Text = "just us, edited" }, token);
+			await _harness.Statuses.Remove(alice, outcome.Post.ID, token);
+
+			foreach (var (member, other) in new[] { (first, second), (second, first) })
+			{
+				var sent = await _harness.Outgoing(member.Id + "/inbox");
+				Assert.Equal(new[] { "Create", "Update", "Delete" }, sent.Select(a => a["type"]!.GetValue<string>()));
+				Assert.All(sent, a => Assert.Contains(member.Id, a["cc"]!.AsArray().Select(c => c!.GetValue<string>())));
+				Assert.All(sent, a => Assert.DoesNotContain(other.Id, a.ToJsonString()));
+			}
+		}
+
+		[Fact]
+		public async Task A_reply_to_a_circle_post_stays_in_it_and_a_circle_post_asks_nobody_outside_for_a_quote()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var (_, alice) = await _harness.Persona("alice");
+			var (_, bob) = await _harness.Persona("bob");
+			var (entity, circle) = await Group(GroupKind.Circle, PostingPolicy.Followers, alice.Id);
+			entity.Members.Add(new GroupMember { AvatarId = bob.Id });
+			await DB.Default.SaveAsync(entity, token);
+			var outsider = new RemoteActor(_harness.Peer, "asked");
+			var outsiderAccount = await _harness.Remote.GetActor(outsider.Id, refresh: false, token);
+			var asksFirst = new Post
+			{
+				ObjectURI = $"{Origin(outsider)}/notes/{Guid.NewGuid():N}",
+				ActorURI = outsider.Id,
+				GroupUserId = outsiderAccount.ID,
+				AuthorAccountId = outsiderAccount.ID,
+				IsFederatedCopy = true,
+				Visibility = PostVisibility.Public,
+				ContentHtml = "<p>ask me first</p>",
+				QuotePolicy = new InteractionRule { Manual = new() { Addressing.Public } }
+			};
+			await DB.Default.SaveAsync(asksFirst, token);
+
+			var root = await _harness.Statuses.Publish(alice, new StatusDraft { Text = "just us", GroupId = circle.Id }, token);
+			var reply = await _harness.Statuses.Publish(bob, new StatusDraft { Text = "still just us", InReplyTo = root.Post.ID }, token);
+			var quote = await _harness.Statuses.Publish(alice, new StatusDraft { Text = "look", GroupId = circle.Id, QuotedStatusId = asksFirst.ID }, token);
+
+			Assert.Equal(PostVisibility.Circle, reply.Post.Visibility);
+			Assert.Equal(circle.Id, reply.Post.GroupId);
+			Assert.Equal(422, quote.Status);
+			Assert.Empty(await _harness.Outgoing(outsider.Id + "/inbox"));
+		}
+
 		[Fact]
 		public async Task Only_circle_members_can_post_into_a_circle()
 		{
@@ -6,6 +6,8 @@ using MongoDB.Entities;
 using PrivaPub.ClientModels;
 using PrivaPub.Models.Group;
 using PrivaPub.Models.User;
+using PrivaPub.Services;
+using PrivaPub.Models.Jobs;
 using PrivaPub.Tests.Support;
 using PrivaPub.Tests.Support.Host;

@@ -136,9 +138,11 @@ namespace PrivaPub.Tests.Http

 			Assert.Equal(HttpStatusCode.OK, ok.StatusCode);
 			Assert.Equal(root.Id, (await ok.JsonBody())["userId"]!.GetValue<string>());
+			// a wrong password and an unknown login get the same answer, so sign-in tells nobody which logins exist
 			Assert.Equal(HttpStatusCode.BadRequest, wrong.StatusCode);
-			Assert.Equal("Wrong password.", await Message(wrong));
+			Assert.Equal(RootUsersService.NoMatch, await Message(wrong));
 			Assert.Equal(HttpStatusCode.BadRequest, unknown.StatusCode);
+			Assert.Equal(await Message(wrong), await Message(unknown));
 			Assert.Equal(HttpStatusCode.OK, logout.StatusCode);
 			Assert.Equal(HttpStatusCode.Unauthorized, anonymousLogout.StatusCode);
 		}
@@ -290,42 +294,59 @@ namespace PrivaPub.Tests.Http
 		}

 		[Fact]
-		public async Task Recovery_without_an_email_is_refused()
+		public async Task Recovery_answers_the_same_whoever_asks_and_queues_the_work()
 		{
-			var root = await _host.SignUp("noemail");
+			var token = TestContext.Current.CancellationToken;
+			var since = DateTime.UtcNow.AddSeconds(-1);
+			var withEmail = await _host.SignUp("withemail");
+			var withoutEmail = await _host.SignUp("noemail");
+			var email = $"{Guid.NewGuid():N}@example.test";
+			using (var signedIn = _host.As(withEmail.Jwt))
+				Assert.Equal(HttpStatusCode.OK, (await signedIn.PostJson("/clientapi/user/update", new { email })).StatusCode);
 			using var client = _host.Client();

-			var response = await client.PostJson("/clientapi/user/recover/password", new { userName = root.UserName });
-			var unknown = await client.PostJson("/clientapi/user/recover/password", new { userName = Name("nobody") });
-			var neither = await client.PostJson("/clientapi/user/recover/password", new { });
+			var answers = new[]
+			{
+				await client.PostJson("/clientapi/user/recover/password", new { userName = withEmail.UserName }),
+				await client.PostJson("/clientapi/user/recover/password", new { email }),
+				await client.PostJson("/clientapi/user/recover/password", new { userName = withoutEmail.UserName }),
+				await client.PostJson("/clientapi/user/recover/password", new { userName = Name("nobody") }),
+				await client.PostJson("/clientapi/user/recover/password", new { email = $"{Guid.NewGuid():N}@example.test" })
+			};
+			var bodies = new List<string>();
+			foreach (var answer in answers)
+			{
+				Assert.Equal(HttpStatusCode.OK, answer.StatusCode);
+				bodies.Add(await answer.Content.ReadAsStringAsync(token));
+			}

-			Assert.Equal(HttpStatusCode.Locked, response.StatusCode);
-			Assert.Contains("doesn't have an email", await Message(response));
-			Assert.False(await DB.Default.Find<EmailRecovery>().Match(r => r.RootUserId == root.Id).ExecuteAnyAsync(TestContext.Current.CancellationToken));
-			Assert.Equal(HttpStatusCode.NotFound, unknown.StatusCode);
-			Assert.Equal(HttpStatusCode.BadRequest, neither.StatusCode);
+			Assert.Single(bodies.Distinct());
+			Assert.Contains("recovery link is on its way", bodies[0]);
+			var queued = await DB.Default.Find<Job>().Match(j => j.Kind == JobKind.SendRecovery && j.CreatedAt >= since).ExecuteAsync(token);
+			Assert.True(queued.Count >= answers.Length);
+			Assert.Contains(queued, j => j.Payload.Contains(withEmail.Id));
+			Assert.Equal(HttpStatusCode.BadRequest, (await client.PostJson("/clientapi/user/recover/password", new { })).StatusCode);
 		}

 		[Fact]
-		public async Task Recovery_through_an_unreachable_mail_server_says_so_and_nothing_more()
+		public async Task The_recovery_job_keeps_only_a_hash_and_an_unreachable_mail_server_says_nothing_to_anyone()
 		{
+			var token = TestContext.Current.CancellationToken;
 			var root = await _host.SignUp("smtp");
 			var email = $"{Guid.NewGuid():N}@example.test";
 			using (var signedIn = _host.As(root.Jwt))
 				Assert.Equal(HttpStatusCode.OK, (await signedIn.PostJson("/clientapi/user/update", new { email })).StatusCode);
 			using var client = _host.Client();

-			var byName = await client.PostJson("/clientapi/user/recover/password", new { userName = root.UserName });
-			var byEmail = await client.PostJson("/clientapi/user/recover/password", new { email });
+			var answer = await client.PostJson("/clientapi/user/recover/password", new { userName = root.UserName });
+			await _host.Run(j => j.Kind == JobKind.SendRecovery && j.Payload.Contains(root.Id), token);

-			foreach (var response in new[] { byName, byEmail })
-			{
-				var body = await response.Content.ReadAsStringAsync(TestContext.Current.CancellationToken);
-				Assert.Equal(HttpStatusCode.ServiceUnavailable, response.StatusCode);
-				Assert.Equal("Failed to send email.", JsonNode.Parse(body)!["errorMessage"]!.GetValue<string>());
-				foreach (var leak in new[] { "xception", "efused", "ocket", "127.0.0.1", "smtp", "SMTP", "  at " })
-					Assert.DoesNotContain(leak, body);
-			}
+			Assert.Equal(HttpStatusCode.OK, answer.StatusCode);
+			var recovery = await DB.Default.Find<EmailRecovery>().Match(r => r.RootUserId == root.Id).ExecuteFirstAsync(token);
+			Assert.NotNull(recovery);
+			Assert.Null(recovery.RecoveryCode);
+			Assert.Equal(64, recovery.CodeHash.Length);
+			Assert.InRange(recovery.ExpiresAt, DateTime.UtcNow.AddMinutes(50), DateTime.UtcNow.AddMinutes(61));
 		}

 		[Fact]
@@ -348,7 +369,10 @@ namespace PrivaPub.Tests.Http
 		{
 			var root = await _host.SignUp("recover");
 			var code = Guid.NewGuid().ToString("N") + Guid.NewGuid().ToString("N");
-			await DB.Default.SaveAsync(new EmailRecovery { RootUserId = root.Id, RecoveryCode = code }, TestContext.Current.CancellationToken);
+			await DB.Default.SaveAsync(new EmailRecovery { RootUserId = root.Id, CodeHash = RecoveryJob.Hash(code), ExpiresAt = DateTime.UtcNow.AddHours(1) },
+				TestContext.Current.CancellationToken);
+			var persona = await _host.Persona(root, "recovered");
+			var apiToken = await _host.MastodonToken(persona);
 			using var client = _host.Client();

 			var valid = await client.PostAsync("/clientapi/user/recover/valid", new StringContent($"\"{code}\"", Encoding.UTF8, "application/json"), TestContext.Current.CancellationToken);
@@ -361,6 +385,29 @@ namespace PrivaPub.Tests.Http
 			Assert.Equal(HttpStatusCode.BadRequest, (await LogIn(root.UserName, root.Password)).StatusCode);
 			Assert.Equal(HttpStatusCode.OK, (await LogIn(root.UserName, NewPassword)).StatusCode);
 			Assert.False(await DB.Default.Find<EmailRecovery>().Match(r => r.RootUserId == root.Id).ExecuteAnyAsync(TestContext.Current.CancellationToken));
+			// whoever held the old sessions may be why the password was recovered: they end
+			using (var oldSession = _host.As(root.Jwt))
+				Assert.Equal(HttpStatusCode.Unauthorized, (await oldSession.GetAsync("/clientapi/user/sniff/again", TestContext.Current.CancellationToken)).StatusCode);
+			using (var oldApp = _host.Client())
+			{
+				oldApp.DefaultRequestHeaders.Authorization = new("Bearer", apiToken);
+				Assert.Equal(HttpStatusCode.Unauthorized, (await oldApp.GetAsync("/api/v1/accounts/verify_credentials", TestContext.Current.CancellationToken)).StatusCode);
+			}
+		}
+
+		[Fact]
+		public async Task An_expired_recovery_code_changes_nothing()
+		{
+			var root = await _host.SignUp("expired");
+			var code = Guid.NewGuid().ToString("N") + Guid.NewGuid().ToString("N");
+			await DB.Default.SaveAsync(new EmailRecovery { RootUserId = root.Id, CodeHash = RecoveryJob.Hash(code), ExpiresAt = DateTime.UtcNow.AddMinutes(-1) },
+				TestContext.Current.CancellationToken);
+			using var client = _host.Client();
+
+			var change = await client.PostJson("/clientapi/user/recover/update/password", new { newPassword = NewPassword, repeatedPassword = NewPassword, recoveryCode = code });
+
+			Assert.Equal(HttpStatusCode.NotFound, change.StatusCode);
+			Assert.Equal(HttpStatusCode.OK, (await LogIn(root.UserName, root.Password)).StatusCode);
 		}

 		[Fact]
@@ -142,7 +142,9 @@ namespace PrivaPub.Tests.Http
 			Assert.Equal(ActivityJson, outbox.MediaType);
 			Assert.Equal("OrderedCollection", outbox.Json["type"]!.GetValue<string>());
 			Assert.Equal(persona.ActorUri() + "/anus", outbox.Json["id"]!.GetValue<string>());
-			Assert.Equal(22, outbox.Json["totalItems"]!.GetValue<int>());
+			// statuses_count, as Mastodon counts it: everything but the DM, the deleted post and the copy of a remote post,
+			// the followers-only and located posts and the boost included; only the public posts are listed
+			Assert.Equal(24, outbox.Json["totalItems"]!.GetValue<int>());
 			Assert.Null(outbox.Json["orderedItems"]);
 			var first = outbox.Json["first"]!.GetValue<string>();
 			Assert.Equal(persona.ActorUri() + "/anus?page=true", first);
@@ -221,7 +223,7 @@ namespace PrivaPub.Tests.Http
 			Assert.DoesNotContain(pending, followers.Text);
 			Assert.Equal(HttpStatusCode.OK, following.Status);
 			Assert.Equal(persona.ActorUri() + "/stalking", following.Json["id"]!.GetValue<string>());
-			Assert.Equal(0, following.Json["totalItems"]!.GetValue<int>());
+			Assert.Equal(1, following.Json["totalItems"]!.GetValue<int>());//counted, as following_count says, never listed
 			Assert.DoesNotContain(friend.UserName, following.Text);
 		}

@@ -322,11 +324,66 @@ namespace PrivaPub.Tests.Http
 			Assert.Equal(new[] { circle.Uri, circle.Uri + "/flock" }, Strings(asMember.Json["to"]));
 			Assert.DoesNotContain(ActivityPubRenderer.Public, asMember.Text);
 			Assert.Equal(HttpStatusCode.OK, asMemberServer.Status);
+			// a refetch names the member, as the member's copy did; the instance actor sees the members on its server only
+			Assert.Equal(new[] { member.Id }, Strings(asMember.Json["cc"]));
+			Assert.Equal(new[] { member.Id }, Strings(asMemberServer.Json["cc"]));
 			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(path)).Status);
 			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(path, Browser)).Status);
 			foreach (var outsider in new[] { neighbour, stranger, strangerServer })
 				Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(outsider.SignedGet(path))).Status);
-			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch($"/peasants/{owner.UserName}/grunts/create-{post.ID}")).Status);
+			var create = $"/peasants/{owner.UserName}/grunts/create-{post.ID}";
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(create)).Status);
+			var createAsMember = await _client.Fetch(member.SignedGet(create));
+			Assert.Equal(HttpStatusCode.OK, createAsMember.Status);
+			Assert.Equal(post.ObjectURI, createAsMember.Json["object"]!["id"]!.GetValue<string>());
+			Assert.Equal(new[] { member.Id }, Strings(createAsMember.Json["object"]!["cc"]));
+		}
+
+		[Fact]
+		public async Task Followers_only_and_direct_posts_are_served_to_signed_fetches_from_those_they_were_for()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var owner = await _host.Persona(await _host.SignUp(), "private");
+			var follower = new RemoteActor(_peer, "follower");
+			var followerServer = new RemoteActor(_peer, "instance", type: "Application");
+			var recipient = new RemoteActor(_peer, "recipient");
+			var stranger = new RemoteActor(_peer, "stranger", _peer.B);
+			_peer.WebFinger(recipient);
+			await DB.Default.SaveAsync(new Follower
+			{
+				LocalActorId = owner.Id,
+				LocalActorKind = LocalActorKind.Person,
+				ActorURI = follower.Id,
+				InboxURL = follower.Id + "/inbox"
+			}, token);
+			var quiet = await _host.Publish(owner, "for followers", PostVisibility.FollowersOnly);
+			var direct = await _host.Publish(owner, new StatusDraft { Text = $"@{recipient.Handle()} just you", PlainText = true, Visibility = PostVisibility.Direct });
+			var quietPath = $"/peasants/{owner.UserName}/scribbles/{quiet.ID}";
+			var directPath = $"/peasants/{owner.UserName}/scribbles/{direct.ID}";
+
+			Assert.Equal(HttpStatusCode.OK, (await _client.Fetch(follower.SignedGet(quietPath))).Status);
+			Assert.Equal(HttpStatusCode.OK, (await _client.Fetch(followerServer.SignedGet(quietPath))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(stranger.SignedGet(quietPath))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(quietPath)).Status);
+			var asRecipient = await _client.Fetch(recipient.SignedGet(directPath));
+			Assert.Equal(HttpStatusCode.OK, asRecipient.Status);
+			Assert.Contains(recipient.Id, Strings(asRecipient.Json["to"]));
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(follower.SignedGet(directPath))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(directPath)).Status);
+
+			// the DM's context is the conversation, for its participants only
+			var context = PathOf(asRecipient.Json["context"]!.GetValue<string>());
+			var conversation = await _client.Fetch(recipient.SignedGet(context));
+			Assert.Equal(HttpStatusCode.OK, conversation.Status);
+			Assert.Equal(new[] { direct.ObjectURI }, Strings(conversation.Json["orderedItems"]));
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(stranger.SignedGet(context))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(context)).Status);
+
+			// once deleted, those it was for learn it is gone; everyone else still learns nothing
+			await _host.Remove(owner, quiet);
+			Assert.Equal(HttpStatusCode.Gone, (await _client.Fetch(follower.SignedGet(quietPath))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(stranger.SignedGet(quietPath))).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await _client.Fetch(quietPath)).Status);
 		}

 		[Fact]
@@ -463,6 +520,10 @@ namespace PrivaPub.Tests.Http
 			Assert.Equal("Application", instance.Json["type"]!.GetValue<string>());
 			foreach (var path in paths[..^1])
 				Assert.True((await client.Fetch(reader.SignedGet(path))).Status == HttpStatusCode.OK, $"{path} refused a signed GET");
+			// a browser is not asked for a signature: it is only sent to the public pages
+			var browser = await client.Fetch($"/peasants/{persona.UserName}", Browser);
+			Assert.Equal(HttpStatusCode.Redirect, browser.Status);
+			Assert.Equal(HttpStatusCode.Redirect, (await client.Fetch($"/peasants/{persona.UserName}/scribbles/{post.ID}", Browser)).Status);
 		}
 	}
 }
@@ -41,7 +41,9 @@ namespace PrivaPub.Tests.Http
 			var v2 = (await anonymous.Get("/api/v2/instance")).Ok();
 			Assert.Equal(InstanceController.Version, v2.Body.Text("version"));
 			Assert.Equal(PrivaPubHost.Host, v2.Body.Text("domain"));
-			Assert.Equal($"wss://{PrivaPubHost.Host}", v2.Body["configuration"]!["urls"].Text("streaming"));
+			Assert.Null(v2.Body["configuration"]!["urls"]!["streaming"]);//nothing streams yet, so nothing is advertised
+			Assert.Equal(PrivaPub.Api.Mastodon.Controllers.StatusesController.MaxPins, v2.Body["configuration"]!["accounts"].Number("max_pinned_statuses"));
+			Assert.Contains("image/avif", v2.Body["configuration"]!["media_attachments"]!["supported_mime_types"]!.AsArray().Select(t => t!.GetValue<string>()));
 			Assert.True(v2.Body["registrations"].Flag("enabled"));
 			Assert.True((await anonymous.Get("/nodeinfo/2.1")).Ok().Body.Flag("openRegistrations"));
 			Assert.False(v2.Body["configuration"]!["translation"].Flag("enabled"));
@@ -0,0 +1,263 @@
+using MongoDB.Entities;
+
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.Post;
+using PrivaPub.Models.Social;
+using PrivaPub.Tests.Support;
+using PrivaPub.Tests.Support.Host;
+
+using System.Net;
+using System.Text.Json.Nodes;
+
+using static PrivaPub.Tests.Support.Host.FederationHelpers;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Tests.Http
+{
+	// Two views of the same fact give one answer (owner decision 2026-10-04: fix the mismatches).
+	[Trait("Category", "Integration")]
+	public sealed class OneAnswerTests : IAsyncLifetime
+	{
+		PrivaPubHost _host;
+		HttpClient _client;
+		Peer _peer;
+
+		public async ValueTask InitializeAsync()
+		{
+			Assert.SkipUnless(MongoFixture.Enabled, MongoFixture.Skip);
+			_host = await PrivaPubHost.Shared();
+			_client = _host.Client();
+			_peer = await Peer.Start();
+		}
+
+		public async ValueTask DisposeAsync()
+		{
+			_client?.Dispose();
+			if (_peer != default)
+				await _peer.DisposeAsync();
+		}
+
+		[Fact]
+		public async Task Anyone_may_search_and_only_a_signed_in_reader_resolves_or_pages()
+		{
+			var reader = await _host.Mastodon("searcher");
+
+			Assert.Equal(HttpStatusCode.OK, (await _client.Get("/api/v2/search?q=somebody")).Status);
+			Assert.Equal(HttpStatusCode.Unauthorized, (await _client.Get("/api/v2/search?q=somebody&resolve=true")).Status);
+			Assert.Equal(HttpStatusCode.Unauthorized, (await _client.Get("/api/v2/search?q=somebody&offset=5")).Status);
+			Assert.Equal(HttpStatusCode.OK, (await reader.Client.Get("/api/v2/search?q=somebody&offset=5")).Status);
+		}
+
+		[Fact]
+		public async Task A_remote_account_that_deletes_itself_leaves_nothing_in_the_counts()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var author = await _host.Mastodon("liked");
+			var post = await author.Status("like me");
+			var fan = new RemoteActor(_peer, "fickle");
+			var like = new JsonObject
+			{
+				["id"] = $"{fan.Id}#likes/{Guid.NewGuid():N}",
+				["type"] = "Like",
+				["actor"] = fan.Id,
+				["object"] = post.Text("uri")
+			};
+			Assert.Equal(HttpStatusCode.Accepted, (await _client.SendAsync(fan.SignedPost("/human-centipede", like), token)).StatusCode);
+			await _host.RunInbox(like["id"]!.GetValue<string>(), token);
+			Assert.Equal(1, (await author.Client.Get($"/api/v1/statuses/{post.Text("id")}")).Ok().Body.Number("favourites_count"));
+
+			var delete = new JsonObject
+			{
+				["id"] = $"{fan.Id}#delete",
+				["type"] = "Delete",
+				["actor"] = fan.Id,
+				["object"] = fan.Id,
+				["to"] = new JsonArray("https://www.w3.org/ns/activitystreams#Public")
+			};
+			Assert.Equal(HttpStatusCode.Accepted, (await _client.SendAsync(fan.SignedPost("/human-centipede", delete), token)).StatusCode);
+			await _host.RunInbox(delete["id"]!.GetValue<string>(), token);
+
+			Assert.Equal(0, (await author.Client.Get($"/api/v1/statuses/{post.Text("id")}")).Ok().Body.Number("favourites_count"));
+			Assert.Empty((await author.Client.Get($"/api/v1/statuses/{post.Text("id")}/favourited_by")).Ok().Array);
+			Assert.False(await DB.Default.Find<Favourite>().Match(f => f.ActorURI == fan.Id).ExecuteAnyAsync(token));
+			Assert.False(await DB.Default.Find<Notification>().Match(n => n.FromActorURI == fan.Id).ExecuteAnyAsync(token));
+			Assert.Equal(0, (await author.Client.Get("/api/v1/notifications/unread_count")).Ok().Body.Number("count"));
+		}
+
+		[Fact]
+		public async Task Only_public_and_unlisted_replies_are_counted()
+		{
+			var author = await _host.Mastodon("threadstart");
+			var replier = await _host.Mastodon("replier");
+			var root = await author.Status("say something");
+			var id = root.Text("id");
+
+			await replier.Status("in public", ("in_reply_to_id", id));
+			await replier.Status("quietly", ("in_reply_to_id", id), ("visibility", "unlisted"));
+			await replier.Status("for my followers", ("in_reply_to_id", id), ("visibility", "private"));
+			await replier.Status($"@{author.UserName} just you", ("in_reply_to_id", id), ("visibility", "direct"));
+
+			Assert.Equal(2, (await author.Client.Get($"/api/v1/statuses/{id}")).Ok().Body.Number("replies_count"));
+		}
+
+		[Fact]
+		public async Task A_status_longer_than_advertised_is_refused()
+		{
+			var author = await _host.Mastodon("wordy");
+			var limit = (await _client.Get("/api/v2/instance")).Ok().Body["configuration"]!["statuses"].Number("max_characters");
+
+			var refused = await author.Client.Post("/api/v1/statuses", ("status", new string('a', limit + 1)));
+			var accepted = await author.Client.Post("/api/v1/statuses", ("status", new string('a', limit)));
+
+			Assert.Equal(HttpStatusCode.UnprocessableEntity, refused.Status);
+			Assert.Equal(HttpStatusCode.OK, accepted.Status);
+		}
+
+		[Fact]
+		public async Task Joining_a_community_by_invitation_is_following_it()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var owner = await _host.Persona(await _host.SignUp(), "commowner");
+			var joinerRoot = await _host.SignUp("joiner");
+			var joiner = await _host.Persona(joinerRoot, "joiner");
+			var group = await _host.Group(owner, community: true);
+			var groupName = group["userName"]!.GetValue<string>();
+			using var client = _host.As(joinerRoot.Jwt);
+
+			var joined = await client.PostJson("/clientapi/group/join", new { avatarId = joiner.Id, invitationCode = group["invitationCode"]!.GetValue<string>() });
+
+			Assert.Equal(HttpStatusCode.OK, joined.StatusCode);
+			Assert.Equal(1, (await _client.Fetch($"/peasants/{groupName}/groupies")).Json["totalItems"]!.GetValue<int>());
+			Assert.True(await DB.Default.Find<Following>().Match(f => f.AvatarId == joiner.Id && f.State == FollowState.Accepted).ExecuteAnyAsync(token));
+		}
+
+		public static TheoryData<string> AnsweredRoutes() => new()
+		{
+			"/api/v1/directory",
+			"/api/v1/tags/cats",
+			"/api/v1/instance/languages",
+			"/api/v1/instance/translation_languages",
+			"/api/v1/instance/domain_blocks",
+			"/api/v1/instance/privacy_policy",
+			"/api/v1/timelines/link?url=https%3A%2F%2Fexample.org%2F",
+			"/api/v1/accounts/000000000000000000000000/identity_proofs"
+		};
+
+		[Theory]
+		[MemberData(nameof(AnsweredRoutes))]
+		public async Task Mastodon_routes_we_have_nothing_behind_answer_instead_of_404(string path)
+		{
+			Assert.Equal(HttpStatusCode.OK, (await _client.Get(path)).Status);
+		}
+
+		[Fact]
+		public async Task Likes_of_one_post_come_as_one_group_of_notifications()
+		{
+			var author = await _host.Mastodon("grouped");
+			var first = await _host.Mastodon("fanone");
+			var second = await _host.Mastodon("fantwo");
+			var post = await author.Status("like me twice");
+			var id = post.Text("id");
+			await first.Client.Post($"/api/v1/statuses/{id}/favourite");
+			await second.Client.Post($"/api/v1/statuses/{id}/favourite");
+
+			var list = (await author.Client.Get("/api/v2/notifications")).Ok().Body;
+			var group = Assert.Single(list["notification_groups"]!.AsArray(), g => g!.Text("type") == "favourite")!;
+			var key = group.Text("group_key");
+
+			Assert.Equal($"grouped-favourite-{id}", key);
+			Assert.Equal(2, group.Number("notifications_count"));
+			Assert.Equal(2, group["sample_account_ids"]!.AsArray().Count);
+			Assert.Equal(id, group.Text("status_id"));
+			Assert.Contains(list["statuses"]!.AsArray(), s => s!.Text("id") == id);
+			Assert.True((await author.Client.Get("/api/v2/notifications/unread_count")).Ok().Body.Number("count") >= 1);
+			Assert.Equal(key, Assert.Single((await author.Client.Get($"/api/v2/notifications/{key}")).Ok().Body["notification_groups"]!.AsArray())!.Text("group_key"));
+			Assert.Equal(2, (await author.Client.Get($"/api/v2/notifications/{key}/accounts")).Ok().Array.Count);
+			Assert.Equal(HttpStatusCode.OK, (await author.Client.Post($"/api/v2/notifications/{key}/dismiss")).Status);
+			Assert.Equal(HttpStatusCode.NotFound, (await author.Client.Get($"/api/v2/notifications/{key}")).Status);
+		}
+
+		[Fact]
+		public async Task A_hashtag_link_opens_a_page_of_public_posts_with_that_tag()
+		{
+			var author = await _host.Mastodon("tagger");
+			var tag = $"tag{Guid.NewGuid():N}"[..16];
+			await author.Status($"about #{tag}");
+			await author.Status($"quietly about #{tag}", ("visibility", "private"));
+
+			var page = await _client.Fetch($"/tags/{tag}", Browser);
+
+			Assert.Equal(HttpStatusCode.OK, page.Status);
+			Assert.Contains("about", page.Text);
+			Assert.DoesNotContain("quietly", page.Text);
+			Assert.Contains("default-src 'none'", page.Response.Headers.GetValues("Content-Security-Policy").Single());
+		}
+
+		[Fact]
+		public async Task A_communitys_announces_resolve_while_the_post_is_shown()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var owner = await _host.Persona(await _host.SignUp(), "announcer");
+			var community = await _host.FederatedGroup(owner, community: true);
+			var post = await _host.Publish(owner, new PrivaPub.Domain.Statuses.StatusDraft { Text = "into the community", PlainText = true, GroupId = community.Id });
+			var kept = await DB.Default.Find<GroupAnnouncement>().Match(a => a.GroupId == community.Id && a.ObjectURI == post.ObjectURI).ExecuteAsync(token);
+			Assert.Equal(2, kept.Count);//the activity, and the object for Mastodon
+
+			foreach (var announcement in kept)
+			{
+				var fetched = await _client.Fetch(PathOf(announcement.ActivityURI));
+				Assert.Equal(HttpStatusCode.OK, fetched.Status);
+				Assert.Equal("Announce", fetched.Json["type"]!.GetValue<string>());
+				Assert.Equal(announcement.ActivityURI, fetched.Json["id"]!.GetValue<string>());
+			}
+			var listed = await _client.Fetch($"/peasants/{community.UserName}/grunts/announce-{post.ID}");
+			Assert.Equal(HttpStatusCode.OK, listed.Status);
+
+			await _host.Remove(owner, post);
+			Assert.Equal(HttpStatusCode.Gone, (await _client.Fetch(PathOf(kept[0].ActivityURI))).Status);
+		}
+
+		[Fact]
+		public async Task A_boost_points_at_the_boosted_posts_page()
+		{
+			var author = await _host.Mastodon("boosted");
+			var booster = await _host.Mastodon("booster");
+			var post = await author.Status("boost me");
+
+			var boost = (await booster.Client.Post($"/api/v1/statuses/{post.Text("id")}/reblog")).Ok().Body;
+
+			Assert.Equal(post.Text("url"), boost.Text("url"));
+			var browser = await _client.Fetch(PathOf(boost.Text("uri")), Browser);
+			Assert.Equal(HttpStatusCode.Redirect, browser.Status);
+		}
+
+		[Fact]
+		public async Task A_remote_accounts_counts_are_what_its_server_publishes()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var reader = await _host.Mastodon("counter");
+			var popular = new RemoteActor(_peer, "popular");
+			_peer.Serve(new Uri(popular.Id).AbsolutePath + "/followers",
+				$$"""{"@context":"https://www.w3.org/ns/activitystreams","id":"{{popular.Id}}/followers","type":"OrderedCollection","totalItems":42}""");
+			var remote = _host.Get<PrivaPub.Federation.Actors.IRemoteActorService>();
+			var account = await remote.GetActor(popular.Id, refresh: true, token);
+
+			await _host.Run(j => j.Kind == PrivaPub.Models.Jobs.JobKind.CountAccount && j.Payload == popular.Id, token);
+
+			var shown = (await reader.Client.Get($"/api/v1/accounts/{account.ID}")).Ok().Body;
+			Assert.Equal(42, shown.Number("followers_count"));
+			Assert.Equal(0, shown.Number("following_count"));
+		}
+
+		[Fact]
+		public async Task Notification_policy_and_requests_answer_a_signed_in_reader()
+		{
+			var reader = await _host.Mastodon("policy");
+
+			Assert.Equal(HttpStatusCode.OK, (await reader.Client.Get("/api/v1/notifications/policy")).Status);
+			Assert.Equal("accept", (await reader.Client.Get("/api/v2/notifications/policy")).Ok().Body.Text("for_not_following"));
+			Assert.Empty((await reader.Client.Get("/api/v1/notifications/requests")).Ok().Array);
+		}
+	}
+}
@@ -0,0 +1,118 @@
+using MongoDB.Entities;
+
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.User;
+using PrivaPub.Tests.Support;
+using PrivaPub.Tests.Support.Host;
+
+using System.Net;
+using System.Net.Http.Json;
+
+using GroupEntity = PrivaPub.Models.Group.Group;
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Tests.Http
+{
+	// Deleting a root deletes its personas and their groups everywhere (owner decision 2026-10-04).
+	[Trait("Category", "Integration")]
+	public sealed class RootRemovalTests : IAsyncLifetime
+	{
+		PrivaPubHost _host;
+		HttpClient _client;
+		Peer _peer;
+
+		public async ValueTask InitializeAsync()
+		{
+			Assert.SkipUnless(MongoFixture.Enabled, MongoFixture.Skip);
+			_host = await PrivaPubHost.Shared();
+			_client = _host.Client();
+			_peer = await Peer.Start();
+		}
+
+		public async ValueTask DisposeAsync()
+		{
+			_client?.Dispose();
+			if (_peer != default)
+				await _peer.DisposeAsync();
+		}
+
+		async Task<HttpResponseMessage> AdminRemoves(params string[] rootIds)
+		{
+			var admin = await _host.Admin();
+			using var client = _host.As(admin.Jwt);
+			using var request = new HttpRequestMessage(HttpMethod.Delete, "/clientapi/admin/remove/users") { Content = JsonContent.Create(new { userIdList = rootIds }) };
+			return await client.SendAsync(request, TestContext.Current.CancellationToken);
+		}
+
+		[Fact]
+		public async Task A_removed_roots_personas_and_groups_are_deleted_everywhere_and_say_so()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var root = await _host.SignUp("leaving");
+			var persona = await _host.Persona(root, "leaving");
+			var follower = new RemoteActor(_peer, "fan");
+			var member = new RemoteActor(_peer, "member");
+			await DB.Default.SaveAsync(new Follower { LocalActorId = persona.Id, LocalActorKind = LocalActorKind.Person, ActorURI = follower.Id, InboxURL = follower.Id + "/inbox" }, token);
+			var group = await _host.Group(persona, community: true);
+			var groupId = group["id"]!.GetValue<string>();
+			await DB.Default.SaveAsync(new Follower { LocalActorId = groupId, LocalActorKind = LocalActorKind.Group, ActorURI = member.Id, InboxURL = member.Id + "/inbox" }, token);
+			var post = await _host.Publish(persona, "goodbye soon");
+			var apiToken = await _host.MastodonToken(persona);
+			var since = DateTime.UtcNow.AddSeconds(-1);
+
+			Assert.Equal(HttpStatusCode.OK, (await AdminRemoves(root.Id)).StatusCode);
+
+			var toFollower = Assert.Single(await Jobs.Deliveries(follower.Id + "/inbox", since, token), d => d["type"]!.GetValue<string>() == "Delete");
+			Assert.Equal(persona.ActorUri(), toFollower["object"]!.GetValue<string>());
+			Assert.Equal(persona.ActorUri(), toFollower["actor"]!.GetValue<string>());
+			var groupName = group["userName"]!.GetValue<string>();
+			Assert.Contains(await Jobs.Deliveries(member.Id + "/inbox", since, token),
+				d => d["type"]!.GetValue<string>() == "Delete" && d["object"]!.GetValue<string>() == $"{PrivaPubHost.Base}/peasants/{groupName}");
+			var gone = await _client.Fetch($"/peasants/{persona.UserName}");
+			Assert.Equal(HttpStatusCode.Gone, gone.Status);
+			Assert.Equal("Person", gone.Json["formerType"]!.GetValue<string>());
+			Assert.Equal(HttpStatusCode.Gone, (await _client.Fetch($"/peasants/{groupName}")).Status);
+			Assert.Equal(HttpStatusCode.Gone, (await _client.GetAsync($"/.well-known/webfinger?resource=acct:{persona.UserName}@{PrivaPubHost.Host}", token)).StatusCode);
+			var stored = await DB.Default.Find<PostEntity>().MatchID(post.ID).ExecuteFirstAsync(token);
+			Assert.NotNull(stored.DeletedAt);
+			Assert.Null(stored.ContentHtml);
+			Assert.NotNull((await DB.Default.Find<GroupEntity>().MatchID(groupId).ExecuteFirstAsync(token)).DeletionAt);
+			var removed = await DB.Default.Find<RootUser>().MatchID(root.Id).ExecuteFirstAsync(token);
+			Assert.Equal($"deleted-{root.Id}", removed.UserName);
+			Assert.Null(removed.HashedPassword);
+			using var app = _host.Client();
+			app.DefaultRequestHeaders.Authorization = new("Bearer", apiToken);
+			Assert.Equal(HttpStatusCode.Unauthorized, (await app.GetAsync("/api/v1/accounts/verify_credentials", token)).StatusCode);
+		}
+
+		[Fact]
+		public async Task A_second_removal_does_not_collide_with_the_first()
+		{
+			var first = await _host.SignUp("first");
+			var second = await _host.SignUp("second");
+
+			Assert.Equal(HttpStatusCode.OK, (await AdminRemoves(first.Id)).StatusCode);
+			Assert.Equal(HttpStatusCode.OK, (await AdminRemoves(second.Id)).StatusCode);
+
+			Assert.NotNull((await DB.Default.Find<RootUser>().MatchID(second.Id).ExecuteFirstAsync(TestContext.Current.CancellationToken)).DeletedAt);
+		}
+
+		[Fact]
+		public async Task A_root_deletes_itself_only_with_its_password()
+		{
+			var token = TestContext.Current.CancellationToken;
+			var root = await _host.SignUp("self");
+			var persona = await _host.Persona(root, "self");
+			using var client = _host.As(root.Jwt);
+
+			var refused = await client.PostJson("/clientapi/user/delete", new { password = "Not-The-Password-1" });
+			Assert.Equal(HttpStatusCode.Forbidden, refused.StatusCode);
+			Assert.Null((await DB.Default.Find<Avatar>().MatchID(persona.Id).ExecuteFirstAsync(token)).DeletionAt);
+
+			var accepted = await client.PostJson("/clientapi/user/delete", new { password = root.Password });
+			Assert.Equal(HttpStatusCode.OK, accepted.StatusCode);
+			Assert.NotNull((await DB.Default.Find<Avatar>().MatchID(persona.Id).ExecuteFirstAsync(token)).DeletionAt);
+			Assert.Equal(HttpStatusCode.Unauthorized, (await client.GetAsync("/clientapi/user/sniff/again", token)).StatusCode);
+		}
+	}
+}
@@ -179,8 +179,10 @@ namespace PrivaPub.Tests.Http
 			return (await client.Fetch("/nodeinfo/2.1", "application/json")).Json["usage"]!["localPosts"]!.GetValue<long>();
 		}

+		// localPosts is Mastodon's: the sum of statuses_count, every local post but DMs and deleted ones, boosts included,
+		// and circle and located posts too (owner decision 2026-10-04)
 		[Fact]
-		public async Task Local_posts_count_only_what_anyone_may_see()
+		public async Task Local_posts_count_as_mastodon_counts_statuses()
 		{
 			var persona = await _host.Persona(await _host.SignUp(), "usage");
 			var friend = await _host.Persona(await _host.SignUp(), "usagefriend");
@@ -197,10 +199,10 @@ namespace PrivaPub.Tests.Http
 			await _host.Reblog(friend, shown);
 			var circle = await _host.FederatedGroup(persona, community: false);
 			await _host.Publish(persona, new StatusDraft { Text = "circle only", PlainText = true, GroupId = circle.Id });
-			Assert.Equal(start + 2, await LocalPosts());
+			Assert.Equal(start + 6, await LocalPosts());//followers-only, located, the boost and the circle post; not the DM nor the copy

 			await _host.Remove(persona, shown);
-			Assert.Equal(start + 1, await LocalPosts());
+			Assert.Equal(start + 4, await LocalPosts());//the post and the boost of it
 		}
 	}
 }
@@ -71,8 +71,7 @@ namespace PrivaPub.Api.Mastodon.Controllers
 				avatar.Settings.IsDiscoverable = discoverable;
 			if (Params.Bool("indexable") is { } indexable)
 				avatar.Settings.IsIndexable = indexable;
-			if (Params.Bool("hide_collections") is { } hide)
-				avatar.Settings.HideCollections = hide;
+			// hide_collections stays true: who follows whom is never listed here, only counted (FEDERATION.md)
 			if (Params.Get("source[privacy]") is { } privacy && privacy is "public" or "unlisted" or "private")
 				avatar.Settings.DefaultVisibility = privacy;
 			if (Params.Bool("source[sensitive]") is { } sensitive)
@@ -120,7 +119,7 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			}
 			var userName = parts[0];
 			var domain = parts[1].ToLowerInvariant();
-			var foreign = await _dbEntities.ForeignAvatars.Match(f => f.UserName == userName && f.Domain == domain).ExecuteFirstAsync(token);
+			var foreign = await _dbEntities.ForeignAvatars.Match(f => f.UserName == userName && f.Domain == domain && !f.DeletionAt.HasValue).ExecuteFirstAsync(token);
 			return foreign == default ? NotFoundError() : Json(_mapper.Foreign(foreign));
 		}

@@ -197,8 +196,9 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			var (local, _) = await Find(id, token);
 			if (local == default || local.Id != MyId)
 				return Json(Array.Empty<Account>());
-			var followers = await _dbEntities.Followers.Match(f => f.LocalActorId == local.Id && f.LocalActorKind == local.Kind && f.IsAccepted)
-				.Sort(f => f.ID, Order.Descending).Limit(Limit(40, 80)).ExecuteAsync(token);
+			var followers = await Page.From(Params, Limit(40, 80))
+				.Fetch(_dbEntities.Followers.Match(f => f.LocalActorId == local.Id && f.LocalActorKind == local.Kind && f.IsAccepted), f => f.ID, token);
+			Link($"/api/v1/accounts/{id}/followers", followers.LastOrDefault()?.ID, followers.FirstOrDefault()?.ID);
 			return Json(await AccountsFor(followers.Select(f => f.ActorURI), token));
 		}

@@ -208,8 +208,9 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			var (local, _) = await Find(id, token);
 			if (local == default || local.Id != MyId)
 				return Json(Array.Empty<Account>());
-			var following = await _dbEntities.Followings.Match(f => f.AvatarId == local.Id && f.State == FollowState.Accepted)
-				.Sort(f => f.ID, Order.Descending).Limit(Limit(40, 80)).ExecuteAsync(token);
+			var following = await Page.From(Params, Limit(40, 80))
+				.Fetch(_dbEntities.Followings.Match(f => f.AvatarId == local.Id && f.State == FollowState.Accepted), f => f.ID, token);
+			Link($"/api/v1/accounts/{id}/following", following.LastOrDefault()?.ID, following.FirstOrDefault()?.ID);
 			var accounts = await _mapper.Accounts(following.Select(f => f.TargetAccountId), token);
 			return Json(following.Select(f => accounts.GetValueOrDefault(f.TargetAccountId)).Where(a => a != default).ToList());
 		}
@@ -30,28 +30,50 @@ namespace PrivaPub.Api.Mastodon.Controllers

 		bool Open => _registrations.CurrentValue.IsOpen;

+		// the languages this server is set up for (AppConfiguration:SupportedLanguages), "en" when none are named
+		public static IReadOnlyList<string> LanguageCodes(IServiceProvider services)
+		{
+			var configured = services.GetRequiredService<Microsoft.Extensions.Options.IOptionsMonitor<Models.AppConfiguration>>().CurrentValue.SupportedLanguages;
+			var codes = (configured ?? new List<string>()).Where(c => !string.IsNullOrWhiteSpace(c)).Select(c => c.Split('-')[0].ToLowerInvariant()).Distinct().ToList();
+			return codes.Count == 0 ? new[] { "en" } : codes;
+		}
+
 		string Domain => new Uri(_localActors.BaseAddress).Authority;

-		static object Statuses => new { max_characters = 5000, max_media_attachments = 4, characters_reserved_per_url = 23 };
+		// every limit is what the server enforces, read from where it is enforced
+		static object Statuses => new { max_characters = PrivaPub.Domain.Statuses.StatusService.MaxCharacters, max_media_attachments = 4, characters_reserved_per_url = 23 };

-		static object MediaAttachments => new
+		object MediaAttachments
 		{
-			supported_mime_types = new[] { "image/jpeg", "image/png", "image/gif", "image/webp", "video/mp4", "video/webm", "audio/mpeg", "audio/ogg" },
-			image_size_limit = 16 * 1024 * 1024,
-			image_matrix_limit = 16_777_216,
-			video_size_limit = 99 * 1024 * 1024,
-			video_frame_rate_limit = 60,
-			video_matrix_limit = 2_304_000
-		};
+			get
+			{
+				var media = HttpContext.RequestServices.GetRequiredService<IOptionsMonitor<PrivaPub.Domain.Media.MediaOptions>>().CurrentValue;
+				return new
+				{
+					supported_mime_types = PrivaPub.Domain.Media.MediaService.SupportedTypes,
+					image_size_limit = media.MaxImageBytes,
+					image_matrix_limit = media.MaxImageSide * media.MaxImageSide,
+					video_size_limit = media.MaxVideoBytes,
+					video_frame_rate_limit = 60,
+					video_matrix_limit = 2_304_000
+				};
+			}
+		}

-		static object Polls => new { max_options = 4, max_characters_per_option = 50, min_expiration = 300, max_expiration = 2_629_746 };
+		static object Polls => new
+		{
+			max_options = PrivaPub.Domain.Statuses.PollService.MaxOptions,
+			max_characters_per_option = PrivaPub.Domain.Statuses.PollService.MaxOptionLength,
+			min_expiration = PrivaPub.Domain.Statuses.PollService.MinExpiration,
+			max_expiration = PrivaPub.Domain.Statuses.PollService.MaxExpiration
+		};

 		[HttpGet("/api/v1/instance"), AllowAnonymous]
 		public async Task<IActionResult> V1(CancellationToken token)
 		{
-			var users = await DB.Default.CountAsync<Avatar>(a => !a.DeletionAt.HasValue, token);
-			var statuses = await DB.Default.CountAsync<PostEntity>(f => f.Where(p => !p.IsFederatedCopy) & f.Where(VisibilityPolicy.IsPublic), token);
-			var domains = (await DB.Default.Find<ForeignAvatar, string>().Project(a => a.Domain).ExecuteAsync(token)).Distinct().Count();
+			var users = await Counted.Users(token);
+			var statuses = await Counted.LocalPosts(token);
+			var domains = await KnownServers(token);
 			return Json(new
 			{
 				uri = Domain,
@@ -60,10 +82,10 @@ namespace PrivaPub.Api.Mastodon.Controllers
 				description = Description,
 				email = string.Empty,
 				version = Version,
-				urls = new { streaming_api = $"wss://{Domain}" },
+				urls = new { },//no streaming API yet, so none is advertised
 				stats = new { user_count = users, status_count = statuses, domain_count = domains },
 				thumbnail = $"{_localActors.BaseAddress}/media/missing-header.png",
-				languages = new[] { "en" },
+				languages = LanguageCodes(HttpContext.RequestServices),
 				registrations = Open,
 				approval_required = false,
 				invites_enabled = true,//a group invitation always creates an account
@@ -73,8 +95,14 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			});
 		}

+		// the servers we have exchanged activities with, as the statistics count them. Which ones is not published
+		// (/instance/peers stays empty, as on a Mastodon with its peers API off): on a small server it would say who its
+		// personas talk to.
+		static async Task<long> KnownServers(CancellationToken token) =>
+			await DB.Default.CountAsync<Models.Jobs.RemoteInstance>(i => i.Seen == "touched", token);
+
 		[HttpGet("/api/v2/instance"), AllowAnonymous]
-		public IActionResult V2() => Json(new
+		public async Task<IActionResult> V2(CancellationToken token) => Json(new
 		{
 			domain = Domain,
 			title = "PrivaPub",
@@ -82,13 +110,13 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			api_versions = new { mastodon = 7 },
 			source_url = "https://git.thepra.dev/thepra/SocialPub",
 			description = Description,
-			usage = new { users = new { active_month = 0 } },
+			usage = new { users = new { active_month = await Counted.ActiveUsers(30, token) } },
 			thumbnail = new { url = $"{_localActors.BaseAddress}/media/missing-header.png" },
-			languages = new[] { "en" },
+			languages = LanguageCodes(HttpContext.RequestServices),
 			configuration = new
 			{
-				urls = new { streaming = $"wss://{Domain}" },
-				accounts = new { max_featured_tags = 0, max_pinned_statuses = 0 },
+				urls = new { },//no streaming API yet, so none is advertised
+				accounts = new { max_featured_tags = 0, max_pinned_statuses = StatusesController.MaxPins },
 				statuses = Statuses,
 				media_attachments = MediaAttachments,
 				polls = Polls,
@@ -35,11 +35,15 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			_search = search;
 		}

-		[HttpGet("/api/v2/search"), Scope("read:search", requiresUser: false)]
+		// Anyone may search, as on Mastodon; only resolving (which fetches from other servers) and paging need a sign-in.
+		[HttpGet("/api/v2/search"), Scope("read:search", requiresUser: false), Microsoft.AspNetCore.Authorization.AllowAnonymous]
 		public async Task<IActionResult> Search(CancellationToken token)
 		{
 			var q = Params.Get("q")?.Trim();
 			var type = Params.Get("type");
+			var offset = Params.Int("offset") ?? 0;
+			if (MyId == default && (Params.Bool("resolve") == true || offset > 0))
+				return Error(StatusCodes.Status401Unauthorized, "Search queries that resolve uris or use offset require the read:search scope");
 			var resolve = Params.Bool("resolve") == true && MyId != default;
 			var results = new SearchResults();
 			if (string.IsNullOrEmpty(q))
@@ -66,7 +70,7 @@ namespace PrivaPub.Api.Mastodon.Controllers

 			if (type is null or "accounts")
 			{
-				results.Accounts = await _search.Find(q, resolve, Limit(), token);
+				results.Accounts = await _search.Find(q, resolve, Limit(), Math.Max(0, offset), token);
 			}
 			if (type is null or "hashtags" && q.TrimStart('#') is { Length: > 0 } tag)
 				results.Hashtags.Add(new { name = tag.ToLowerInvariant(), url = $"{_localActors.BaseAddress}/tags/{Uri.EscapeDataString(tag.ToLowerInvariant())}", history = Array.Empty<object>() });
@@ -133,5 +137,67 @@ namespace PrivaPub.Api.Mastodon.Controllers

 		[HttpGet("/api/v1/push/subscription"), Scope("push")]
 		public IActionResult PushSubscription() => Error(StatusCodes.Status404NotFound, "Record not found");
+
+		// Routes Mastodon answers that we have nothing behind: an empty or default answer lets clients degrade, where a
+		// 404 breaks some of them (Mastodon invariant 5)
+		[HttpGet("/api/v1/directory"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult Directory() => Json(Array.Empty<object>());
+
+		[HttpGet("/api/v1/timelines/link"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult LinkTimeline() => Json(Array.Empty<object>());
+
+		[HttpGet("/api/v1/accounts/{id}/identity_proofs"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult IdentityProofs(string id) => Json(Array.Empty<object>());
+
+		[HttpGet("/api/v1/tags/{name}"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult Tag(string name)
+		{
+			var tag = name?.TrimStart('#').ToLowerInvariant() ?? string.Empty;
+			var baseAddress = HttpContext.RequestServices.GetRequiredService<Federation.Actors.ILocalActorService>().BaseAddress;
+			return Json(new { name = tag, url = $"{baseAddress}/tags/{Uri.EscapeDataString(tag)}", history = Array.Empty<object>(), following = false });
+		}
+
+		[HttpGet("/api/v1/instance/languages"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult Languages() => Json(InstanceController.LanguageCodes(HttpContext.RequestServices)
+			.Select(code => new { code, name = System.Globalization.CultureInfo.GetCultureInfo(code).EnglishName }));
+
+		[HttpGet("/api/v1/instance/translation_languages"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult TranslationLanguages() => Json(new { });
+
+		[HttpGet("/api/v1/instance/domain_blocks"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult InstanceDomainBlocks() => Json(Array.Empty<object>());
+
+		[HttpGet("/api/v1/instance/privacy_policy"), Microsoft.AspNetCore.Authorization.AllowAnonymous]
+		public IActionResult PrivacyPolicy() => Json(new
+		{
+			updated_at = "2026-10-04T00:00:00.000Z",
+			content = "<p>One private login owns several public personas, and nobody but this server's admin can tell they belong "
+				+ "together. What a persona posts is shared as its visibility says; a located post never leaves this server. "
+				+ "Uploads lose their metadata. Statistics name servers, never people: see /stargazing.</p>"
+		});
+
+		[HttpGet("/api/v1/notifications/policy"), Scope("read:notifications")]
+		public IActionResult NotificationPolicyV1() => Json(new
+		{
+			filter_not_following = false,
+			filter_not_followers = false,
+			filter_new_accounts = false,
+			filter_private_mentions = false,
+			summary = new { pending_requests_count = 0, pending_notifications_count = 0 }
+		});
+
+		[HttpGet("/api/v2/notifications/policy"), Scope("read:notifications")]
+		public IActionResult NotificationPolicyV2() => Json(new
+		{
+			for_not_following = "accept",
+			for_not_followers = "accept",
+			for_new_accounts = "accept",
+			for_private_mentions = "accept",
+			for_limited_accounts = "accept",
+			summary = new { pending_requests_count = 0, pending_notifications_count = 0 }
+		});
+
+		[HttpGet("/api/v1/notifications/requests"), Scope("read:notifications")]
+		public IActionResult NotificationRequests() => Json(Array.Empty<object>());
 	}
 }
@@ -273,7 +273,7 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			await DB.Default.Update<PostEntity>().MatchID(post.ID).Modify(p => p.LocalQuotePolicy, policy).ExecuteAsync(token);
 			post.LocalQuotePolicy = policy;
 			if (!post.IsLocalOnly)
-				await _outbox.Publish(Me, post, ActivityPubRenderer.UpdateOf(post, Me, $"policy-{DateTime.UtcNow.Ticks}"), token);
+				await _outbox.PublishUpdate(Me, post, $"policy-{DateTime.UtcNow.Ticks}", token);
 			return Json(await _mapper.Status(post, MyId, token));
 		}

@@ -177,8 +177,7 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			_dbEntities = dbEntities;
 		}

-		[HttpGet("/api/v1/notifications"), Scope("read:notifications")]
-		public async Task<IActionResult> List(CancellationToken token)
+		Find<NotificationEntity, NotificationEntity> Filtered()
 		{
 			var types = Params.List("types").Select(Parse).Where(t => t.HasValue).Select(t => t.Value).ToList();
 			var excluded = Params.List("exclude_types").Select(Parse).Where(t => t.HasValue).Select(t => t.Value).ToList();
@@ -189,11 +188,132 @@ namespace PrivaPub.Api.Mastodon.Controllers
 				query.Match(n => !excluded.Contains(n.Type));
 			if (Params.Get("account_id") is { } accountId)
 				query.Match(n => n.FromAccountId == accountId);
-			var notifications = await Page.From(Params, Limit(15, 30)).Fetch(query, n => n.ID, token);
+			return query;
+		}
+
+		[HttpGet("/api/v1/notifications"), Scope("read:notifications")]
+		public async Task<IActionResult> List(CancellationToken token)
+		{
+			var notifications = await Page.From(Params, Limit(15, 30)).Fetch(Filtered(), n => n.ID, token);
 			Link("/api/v1/notifications", notifications.LastOrDefault()?.ID, notifications.FirstOrDefault()?.ID);
 			return Json(await Map(notifications, token));
 		}

+		// Grouped notifications (Mastodon 4.3): api_versions.mastodon says we speak that API, so clients call it. Likes and
+		// boosts of one post group together, as do follows within an hour; everything else stands alone.
+		static readonly HashSet<string> DefaultGrouped = new() { "favourite", "reblog", "follow" };
+
+		HashSet<string> Grouped() => Params.List("grouped_types") is { Count: > 0 } chosen ? chosen.ToHashSet() : DefaultGrouped;
+
+		static string GroupKey(NotificationEntity n, ISet<string> grouped) =>
+			!grouped.Contains(Names[n.Type]) ? $"ungrouped-{n.ID}"
+			: n.Type == NotificationType.Follow ? $"grouped-follow-{n.CreatedAt:yyyyMMddHH}"
+			: string.IsNullOrEmpty(n.PostId) ? $"ungrouped-{n.ID}"
+			: $"grouped-{Names[n.Type]}-{n.PostId}";
+
+		// the notifications a group key stands for
+		System.Linq.Expressions.Expression<Func<NotificationEntity, bool>> InGroup(string key)
+		{
+			var me = MyId;
+			if (key.StartsWith("ungrouped-", StringComparison.Ordinal))
+			{
+				var id = key["ungrouped-".Length..];
+				return n => n.AvatarId == me && n.ID == id;
+			}
+			if (key.StartsWith("grouped-follow-", StringComparison.Ordinal)
+				&& DateTime.TryParseExact(key["grouped-follow-".Length..], "yyyyMMddHH", System.Globalization.CultureInfo.InvariantCulture,
+					System.Globalization.DateTimeStyles.AdjustToUniversal | System.Globalization.DateTimeStyles.AssumeUniversal, out var hour))
+			{
+				var end = hour.AddHours(1);
+				return n => n.AvatarId == me && n.Type == NotificationType.Follow && n.CreatedAt >= hour && n.CreatedAt < end;
+			}
+			if (key.Split('-') is ["grouped", var name, var postId] && Parse(name) is { } type)
+				return n => n.AvatarId == me && n.Type == type && n.PostId == postId;
+			return default;
+		}
+
+		async Task<List<NotificationEntity>> Members(string key, CancellationToken token) =>
+			InGroup(key) is { } filter
+				? await _dbEntities.Notifications.Match(filter).Sort(n => n.ID, Order.Descending).Limit(80).ExecuteAsync(token)
+				: new List<NotificationEntity>();
+
+		async Task<object> Groups(List<NotificationEntity> page, ISet<string> grouped, CancellationToken token)
+		{
+			var mapped = (await Map(page, token)).ToDictionary(n => n.Id);
+			var shown = page.Where(n => mapped.ContainsKey(n.ID)).ToList();
+			var groups = new List<object>();
+			foreach (var group in shown.GroupBy(n => GroupKey(n, grouped)))
+			{
+				var newest = mapped[group.First().ID];
+				var total = group.Key.StartsWith("ungrouped-", StringComparison.Ordinal) ? 1 : await DB.Default.CountAsync(InGroup(group.Key), token);
+				groups.Add(new
+				{
+					group_key = group.Key,
+					notifications_count = Math.Max(total, group.Count()),
+					type = newest.Type,
+					most_recent_notification_id = newest.Id,
+					page_min_id = group.Last().ID,
+					page_max_id = group.First().ID,
+					latest_page_notification_at = newest.CreatedAt,
+					sample_account_ids = group.Select(n => mapped[n.ID].Account.Id).Distinct().Take(8).ToList(),
+					status_id = newest.Status?.Id,
+					emoji = newest.Emoji,
+					emoji_url = newest.EmojiUrl
+				});
+			}
+			return new
+			{
+				accounts = mapped.Values.Select(n => n.Account).DistinctBy(a => a.Id).ToList(),
+				statuses = mapped.Values.Where(n => n.Status != default).Select(n => n.Status).DistinctBy(s => s.Id).ToList(),
+				notification_groups = groups
+			};
+		}
+
+		[HttpGet("/api/v2/notifications"), Scope("read:notifications")]
+		public async Task<IActionResult> GroupedList(CancellationToken token)
+		{
+			var notifications = await Page.From(Params, Limit(40, 80)).Fetch(Filtered(), n => n.ID, token);
+			Link("/api/v2/notifications", notifications.LastOrDefault()?.ID, notifications.FirstOrDefault()?.ID);
+			return Json(await Groups(notifications, Grouped(), token));
+		}
+
+		[HttpGet("/api/v2/notifications/unread_count"), Scope("read:notifications")]
+		public async Task<IActionResult> GroupedUnreadCount(CancellationToken token)
+		{
+			var unread = await Filtered().Match(n => !n.IsRead).Sort(n => n.ID, Order.Descending)
+				.Limit(Math.Clamp(Params.Int("limit") ?? 100, 1, 1000)).ExecuteAsync(token);
+			var shown = (await Map(unread, token)).Select(n => n.Id).ToHashSet();
+			var grouped = Grouped();
+			return Json(new { count = unread.Where(n => shown.Contains(n.ID)).Select(n => GroupKey(n, grouped)).Distinct().Count() });
+		}
+
+		[HttpGet("/api/v2/notifications/{groupKey}"), Scope("read:notifications")]
+		public async Task<IActionResult> Group(string groupKey, CancellationToken token)
+		{
+			var members = await Members(groupKey, token);
+			if (members.Count == 0)
+				return NotFoundError();
+			return Json(await Groups(members, new HashSet<string>(DefaultGrouped.Append(Names[members[0].Type])), token));
+		}
+
+		[HttpGet("/api/v2/notifications/{groupKey}/accounts"), Scope("read:notifications")]
+		public async Task<IActionResult> GroupAccounts(string groupKey, CancellationToken token)
+		{
+			var members = await Members(groupKey, token);
+			if (members.Count == 0)
+				return NotFoundError();
+			return Json((await Map(members, token)).Select(n => n.Account).DistinctBy(a => a.Id).ToList());
+		}
+
+		[HttpPost("/api/v2/notifications/{groupKey}/dismiss"), Scope("write:notifications")]
+		public async Task<IActionResult> DismissGroup(string groupKey, CancellationToken token)
+		{
+			if (InGroup(groupKey) is not { } filter)
+				return NotFoundError();
+			await DB.Default.DeleteAsync(filter);
+			return Json(new { });
+		}
+
 		[HttpGet("/api/v1/notifications/{id}"), Scope("read:notifications")]
 		public async Task<IActionResult> Get(string id, CancellationToken token)
 		{
@@ -216,9 +336,15 @@ namespace PrivaPub.Api.Mastodon.Controllers
 			return Json(new { });
 		}

+		// counts what the list would show (Map drops notifications from gone accounts and about hidden posts), at most
+		// `limit` of them, as Mastodon does
 		[HttpGet("/api/v1/notifications/unread_count"), Scope("read:notifications")]
-		public async Task<IActionResult> UnreadCount(CancellationToken token) =>
-			Json(new { count = await DB.Default.CountAsync<NotificationEntity>(n => n.AvatarId == MyId && !n.IsRead, token) });
+		public async Task<IActionResult> UnreadCount(CancellationToken token)
+		{
+			var unread = await DB.Default.Find<NotificationEntity>().Match(n => n.AvatarId == MyId && !n.IsRead)
+				.Sort(n => n.ID, Order.Descending).Limit(Math.Clamp(Params.Int("limit") ?? 100, 1, 1000)).ExecuteAsync(token);
+			return Json(new { count = (await Map(unread, token)).Count });
+		}

 		async Task<List<Entities.Notification>> Map(List<NotificationEntity> notifications, CancellationToken token)
 		{
@@ -19,7 +19,10 @@ namespace PrivaPub.Api.Mastodon.Mappers
 			_remoteActors = remoteActors;
 		}

-		public async Task<List<Account>> Find(string q, bool resolve, int limit, CancellationToken token)
+		public async Task<List<Account>> Find(string q, bool resolve, int limit, CancellationToken token) => await Find(q, resolve, limit, 0, token);
+
+		// gone accounts (remote ones that deleted themselves, personas of banned or deleted roots) are never found
+		public async Task<List<Account>> Find(string q, bool resolve, int limit, int offset, CancellationToken token)
 		{
 			q = q?.Trim().TrimStart('@');
 			if (string.IsNullOrEmpty(q))
@@ -31,24 +34,31 @@ namespace PrivaPub.Api.Mastodon.Mappers
 			{
 				var userName = parts[0];
 				var domain = parts[1].ToLowerInvariant();
-				var known = await _dbEntities.ForeignAvatars.Match(f => f.UserName == userName && f.Domain == domain).ExecuteFirstAsync(token);
+				var known = await _dbEntities.ForeignAvatars.Match(f => f.UserName == userName && f.Domain == domain && !f.DeletionAt.HasValue).ExecuteFirstAsync(token);
 				if (known == default && resolve)
 				{
 					var actorUri = await _remoteActors.ResolveHandle(q, token);
 					known = actorUri == default ? default : await _remoteActors.GetActor(actorUri, refresh: false, token);
 				}
-				if (known != default)
+				if (known is { DeletionAt: null } && offset == 0)
 					results.Add(_mapper.Foreign(known));
 				return results;
 			}

 			var prefix = parts[0].ToLowerInvariant();
-			foreach (var avatar in await _dbEntities.Avatars.Match(a => a.UserName.StartsWith(prefix) && !a.DeletionAt.HasValue && a.Settings.IsDiscoverable != false)
-				.Limit(limit).ExecuteAsync(token))
+			var barred = await Domain.Privacy.Counted.BarredPersonas(token);
+			var locals = await _dbEntities.Avatars
+				.Match(a => a.UserName.StartsWith(prefix) && !a.DeletionAt.HasValue && a.Settings.IsDiscoverable != false && !barred.Contains(a.ID))
+				.Sort(a => a.UserName, MongoDB.Entities.Order.Ascending)
+				.Limit(offset + limit).ExecuteAsync(token);
+			foreach (var avatar in locals.Skip(offset))
 				results.Add(await _mapper.Local(_localActors.FromAvatar(avatar), false, token));
-			foreach (var foreign in await _dbEntities.ForeignAvatars.Match(f => f.UserName.StartsWith(parts[0]) && f.IsDiscoverable)
-				.Limit(Math.Max(0, limit - results.Count)).ExecuteAsync(token))
-				results.Add(_mapper.Foreign(foreign));
+			var skipRemote = Math.Max(0, offset - locals.Count);
+			if (results.Count < limit)
+				foreach (var foreign in await _dbEntities.ForeignAvatars.Match(f => f.UserName.StartsWith(parts[0]) && f.IsDiscoverable && !f.DeletionAt.HasValue)
+					.Sort(f => f.UserName, MongoDB.Entities.Order.Ascending)
+					.Skip(skipRemote).Limit(limit - results.Count).ExecuteAsync(token))
+					results.Add(_mapper.Foreign(foreign));
 			return results;
 		}
 	}
@@ -50,15 +50,11 @@ namespace PrivaPub.Api.Mastodon.Mappers
 				? await DB.Default.CountAsync<Following>(f => f.AvatarId == actor.Id && f.State == FollowState.Accepted, token)
 				: 0;
 			var latest = await _dbEntities.Posts
-				.Match(p => (actor.Kind == LocalActorKind.Group ? p.GroupId == actor.Id : p.GroupUserId == actor.Id) && !p.IsFederatedCopy
-					&& !p.DeletedAt.HasValue && p.Visibility != PostVisibility.Direct && p.ReblogOfPostId == null)
+				.Match(Counted.By(actor))
 				.Sort(p => p.ID, Order.Descending)
 				.Limit(1)
 				.ExecuteFirstAsync(token);
-			var statuses = latest == default
-				? 0
-				: await DB.Default.CountAsync<PostEntity>(p => (actor.Kind == LocalActorKind.Group ? p.GroupId == actor.Id : p.GroupUserId == actor.Id)
-					&& !p.IsFederatedCopy && !p.DeletedAt.HasValue && p.Visibility != PostVisibility.Direct && p.ReblogOfPostId == null, token);
+			var statuses = latest == default ? 0 : await Counted.PostsBy(actor, token);

 			var account = new Account
 			{
@@ -71,7 +67,7 @@ namespace PrivaPub.Api.Mastodon.Mappers
 				Discoverable = actor.Discoverable,
 				Indexable = actor.Indexable,
 				Noindex = !actor.Indexable,
-				HideCollections = actor.Settings.HideCollections,
+				HideCollections = true,//follower and following lists are never shown to others, only their counts
 				Group = actor.Kind == LocalActorKind.Group,
 				CreatedAt = MastodonJson.Day(actor.Published),
 				Note = ActivityPubRenderer.Html(actor.Summary),
@@ -124,7 +120,10 @@ namespace PrivaPub.Api.Mastodon.Mappers
 			Avatar = Proxied(foreign.PictureURL) ?? MissingAvatar,
 			AvatarStatic = Proxied(foreign.PictureURL) ?? MissingAvatar,
 			Header = Proxied(foreign.ThumbnailURL) ?? MissingHeader,
-			HeaderStatic = Proxied(foreign.ThumbnailURL) ?? MissingHeader
+			HeaderStatic = Proxied(foreign.ThumbnailURL) ?? MissingHeader,
+			FollowersCount = foreign.FollowersCount ?? 0,//as its server publishes them (AccountCountsJob); 0 while unknown
+			FollowingCount = foreign.FollowingCount ?? 0,
+			StatusesCount = foreign.StatusesCount ?? 0
 		};

 		public async Task<Account> Account(string id, CancellationToken token) =>
@@ -141,7 +140,7 @@ namespace PrivaPub.Api.Mastodon.Mappers
 				accounts[avatar.ID] = await Local(_localActors.FromAvatar(avatar), false, token);
 			foreach (var group in await _dbEntities.Groups.Match(g => wanted.Contains(g.ID) && !g.DeletionAt.HasValue && g.Kind == GroupKind.Community).ExecuteAsync(token))
 				accounts[group.ID] = await Local(_localActors.FromGroup(group), false, token);
-			foreach (var foreign in await _dbEntities.ForeignAvatars.Match(f => wanted.Contains(f.ID)).ExecuteAsync(token))
+			foreach (var foreign in await _dbEntities.ForeignAvatars.Match(f => wanted.Contains(f.ID) && !f.DeletionAt.HasValue).ExecuteAsync(token))
 				accounts[foreign.ID] = Foreign(foreign);
 			return accounts;
 		}
@@ -202,8 +201,8 @@ namespace PrivaPub.Api.Mastodon.Mappers

 			Status Map(PostEntity post)
 			{
-				if (!accounts.TryGetValue(AuthorOf(post), out var account))
-					return default;
+				if (AuthorOf(post) is not { } author || !accounts.TryGetValue(author, out var account))
+					return default;//a post whose author we cannot show is left out, never a 500
 				var status = new Status
 				{
 					Id = post.ID,
@@ -283,6 +282,7 @@ namespace PrivaPub.Api.Mastodon.Mappers
 						continue;
 					Quote(inner, original);
 					status.Reblog = inner;
+					status.Url = inner.Url;//a boost has no page of its own; /grunts would answer JSON to a browser
 					status.Content = string.Empty;
 					status.Reblogged = reblogged.Contains(original.ID);
 				}
@@ -361,7 +361,7 @@ namespace PrivaPub.Controllers.ClientToServer
 				if (!result.IsValid)
 					return StatusCode(result.StatusCode, result);

-				return Ok(result);
+				return Ok(result.Data);//the same sentence for everyone
 			}
 			catch (Exception ex)
 			{
@@ -414,26 +414,23 @@ namespace PrivaPub.Controllers.ClientToServer
 			}
 		}

-		//[HttpDelete, Route("delete"), Authorize(Policy = Policies.IsUser)]
-		//public async Task<IActionResult> RemoveSelf()
-		//{
-		//	var result = new WebResult();
-		//	try
-		//	{
-		//		//result = await UsersService.RemoveUserAsync(User.GetUserId());
-		//		if (!result.IsValid)
-		//			return StatusCode(result.StatusCode, result);
-
-		//		await HttpContext.SignOutAsync();
-
-		//		return Ok();
-		//	}
-		//	catch (Exception ex)
-		//	{
-		//		Logger.LogError(ex, $"{nameof(User)}.{nameof(RemoveSelf)}()");
-		//		return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
-		//	}
-		//}
+		[HttpPost, Route("/clientapi/user/delete"), EnableRateLimiting(RateLimiting.Accounts), Authorize(Policy = Policies.IsUser)]
+		public async Task<IActionResult> RemoveSelf(RemoveSelfForm form)
+		{
+			var result = new WebResult();
+			if (!ModelState.IsValid)
+				return BadRequest(result.Invalidate(Localizer["Invalid model."]));
+			try
+			{
+				result = await UsersService.RemoveSelfAsync(User.GetUserId(), form.Password);
+				return result.IsValid ? Ok() : StatusCode(result.StatusCode, result);
+			}
+			catch (Exception ex)
+			{
+				Logger.LogError(ex, $"{nameof(User)}.{nameof(RemoveSelf)}()");
+				return BadRequest(result.Invalidate(Localizer["Something went wrong."]));
+			}
+		}

 		#endregion User endpoints

@@ -42,6 +42,9 @@ namespace PrivaPub.Domain.Media
 			["audio/mp4"] = "m4a", ["audio/x-m4a"] = "m4a", ["audio/flac"] = "flac", ["audio/webm"] = "webm"
 		};

+		// what an upload may be, as the instance API advertises it
+		public static IReadOnlyList<string> SupportedTypes => ImageTypes.Concat(AvTypes.Keys).ToList();
+
 		readonly IOptionsMonitor<MediaOptions> _options;
 		readonly ILocalActorService _localActors;
 		readonly IWebHostEnvironment _environment;
@@ -0,0 +1,73 @@
+using MongoDB.Entities;
+
+using PrivaPub.Federation.Actors;
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.Post;
+using PrivaPub.Models.User;
+
+using System.Linq.Expressions;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Domain.Privacy
+{
+	// What the numbers count, in one place, so a persona's statuses_count, its outbox's totalItems, NodeInfo and the
+	// instance API agree (they used to count four different things).
+	public static class Counted
+	{
+		// Mastodon's statuses_count: every post that is neither deleted nor a direct message, reblogs included. Circle and
+		// located posts count too (owner decision 2026-10-04: "a good balance for the fediverse to work").
+		public static readonly Expression<Func<PostEntity, bool>> Post = p => !p.DeletedAt.HasValue && p.Visibility != PostVisibility.Direct;
+
+		// a persona's own posts, or every post in a group, its remote members' included
+		public static Expression<Func<PostEntity, bool>> By(LocalActor actor)
+		{
+			var id = actor.Id;
+			return actor.Kind == LocalActorKind.Group
+				? p => p.GroupId == id && !p.DeletedAt.HasValue && p.Visibility != PostVisibility.Direct
+				: p => p.GroupUserId == id && !p.IsFederatedCopy && !p.DeletedAt.HasValue && p.Visibility != PostVisibility.Direct;
+		}
+
+		// replies_count counts only public and unlisted replies, as Mastodon does: a count must not tell anyone that a
+		// followers-only, direct or circle reply exists
+		public static bool Reply(PostEntity reply) => reply.Visibility is PostVisibility.Public or PostVisibility.Unlisted;
+
+		public static async Task<long> PostsBy(LocalActor actor, CancellationToken token) =>
+			await DB.Default.CountAsync(By(actor), token);
+
+		// Personas that do not count as this server's users, and are not found in search: those of a banned or deleted root.
+		public static async Task<List<string>> BarredPersonas(CancellationToken token)
+		{
+			var roots = (await DB.Default.Find<RootUser>().Match(u => u.IsBanned || u.DeletedAt != null).Project(u => u.Include(x => x.ID)).ExecuteAsync(token))
+				.Select(u => u.ID).ToList();
+			return roots.Count == 0
+				? new List<string>()
+				: (await DB.Default.Find<RootToAvatar>().Match(ra => roots.Contains(ra.RootId)).ExecuteAsync(token)).Select(ra => ra.AvatarId).ToList();
+		}
+
+		public static async Task<long> Users(CancellationToken token)
+		{
+			var barred = await BarredPersonas(token);
+			return await DB.Default.CountAsync<Avatar>(a => !a.DeletionAt.HasValue && !barred.Contains(a.ID), token);
+		}
+
+		// users who posted within the last days, as NodeInfo's activeMonth and activeHalfyear and the instance API mean it
+		public static async Task<long> ActiveUsers(int days, CancellationToken token)
+		{
+			var barred = await BarredPersonas(token);
+			var since = DateTime.UtcNow.AddDays(-days);
+			var authors = await DB.Default.Find<PostEntity, string>()
+				.Match(p => !p.IsFederatedCopy && p.CreationDate >= since && !barred.Contains(p.GroupUserId))
+				.Project(p => p.GroupUserId)
+				.ExecuteAsync(token);
+			var distinct = authors.Where(a => !string.IsNullOrEmpty(a)).Distinct().ToList();
+			return distinct.Count == 0 ? 0 : await DB.Default.CountAsync<Avatar>(a => distinct.Contains(a.ID) && !a.DeletionAt.HasValue, token);
+		}
+
+		public static async Task<long> LocalPosts(CancellationToken token)
+		{
+			var barred = await BarredPersonas(token);
+			return await DB.Default.CountAsync<PostEntity>(f => f.Where(p => !p.IsFederatedCopy && !barred.Contains(p.GroupUserId)) & f.Where(Post), token);
+		}
+	}
+}
@@ -233,7 +233,7 @@ namespace PrivaPub.Domain.Statuses
 				return JobOutcome.Done;
 			await Closing(post, author, token);
 			if (!post.IsLocalOnly)
-				await _outbox.Publish(author, post, ActivityPubRenderer.UpdateOf(post, author, $"poll-{DateTime.UtcNow.Ticks}"), token);
+				await _outbox.PublishUpdate(author, post, $"poll-{DateTime.UtcNow.Ticks}", token);
 			return JobOutcome.Done;
 		}

@@ -239,7 +239,7 @@ namespace PrivaPub.Domain.Statuses
 				.ExecuteAsync(token);
 			await DB.Default.Update<PostEntity>().MatchID(quoted.ID).Modify(b => b.Inc(p => p.QuotesCount, 1)).ExecuteAsync(token);
 			if (!post.IsLocalOnly)
-				await _outbox.Publish(author, post, ActivityPubRenderer.UpdateOf(post, author, "quote-approved"), token);
+				await _outbox.PublishUpdate(author, post, "quote-approved", token);
 			return true;
 		}

@@ -95,8 +95,17 @@ namespace PrivaPub.Domain.Statuses
 			_fanout = fanout;
 		}

+		public const int MaxCharacters = 5000;//what the instance API advertises as max_characters, and enforced here
+
+		static StatusOutcome TooLong(StatusDraft draft) =>
+			(draft.Text?.Length ?? 0) > MaxCharacters
+				? StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, $"Validation failed: Text character limit of {MaxCharacters} exceeded")
+				: default;
+
 		public async Task<StatusOutcome> Publish(LocalActor author, StatusDraft draft, CancellationToken token)
 		{
+			if (TooLong(draft) is { } tooLong)
+				return tooLong;
 			var media = await Media(author, draft.MediaIds, default, token);
 			if (media == default)
 				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: Media attachments are invalid");
@@ -119,6 +128,11 @@ namespace PrivaPub.Domain.Statuses
 				return StatusOutcome.Fail(StatusCodes.Status404NotFound, "Record not found");
 			if (parent != default && !await VisibilityPolicy.CanSee(parent, author.Id, token))
 				return StatusOutcome.Fail(StatusCodes.Status404NotFound, "Record not found");
+			// a reply in a circle stays in the circle, whichever client wrote it: Mastodon clients know nothing of groups
+			if (group == default && parent is { Visibility: PostVisibility.Circle } && !string.IsNullOrEmpty(parent.GroupId)
+				&& await _dbEntities.Groups.MatchID(parent.GroupId).ExecuteFirstAsync(token) is { DeletionAt: null } parentCircle
+				&& await MayPost(parentCircle, author, token))
+				group = _localActors.FromGroup(parentCircle);

 			PostEntity quoted = default;
 			var quotePermission = QuotePermission.Denied;
@@ -161,6 +175,9 @@ namespace PrivaPub.Domain.Statuses
 			var visibility = located ? PostVisibility.LocalGeo
 				: group is { IsCircle: true } ? PostVisibility.Circle
 				: draft.Visibility is PostVisibility.Circle or PostVisibility.LocalGeo ? PostVisibility.Public : draft.Visibility;
+			// asking a quoted post's author for permission would show them the circle post
+			if (visibility == PostVisibility.Circle && quoted != default && quotePermission != QuotePermission.Granted)
+				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: A circle post can only quote a post that needs no permission");
 			var post = new PostEntity
 			{
 				GroupUserId = author.Id,
@@ -231,7 +248,7 @@ namespace PrivaPub.Domain.Statuses

 			await DB.Default.SaveAsync(post, token);
 			await Attach(media, post.ID, token);
-			if (parent != default)
+			if (parent != default && Counted.Reply(post))
 				await DB.Default.Update<PostEntity>().MatchID(parent.ID).Modify(b => b.Inc(p => p.RepliesCount, 1)).ExecuteAsync(token);
 			await _fanout.Distribute(post, token);
 			await _polls.Scheduled(post, token);
@@ -252,6 +269,8 @@ namespace PrivaPub.Domain.Statuses
 			var post = await Own(author, postId, token);
 			if (post == default)
 				return StatusOutcome.Fail(StatusCodes.Status404NotFound, "Record not found");
+			if (TooLong(draft) is { } tooLong)
+				return tooLong;
 			var media = draft.MediaIds == default ? default : await Media(author, draft.MediaIds, post.ID, token);
 			if (draft.MediaIds != default && media == default)
 				return StatusOutcome.Fail(StatusCodes.Status422UnprocessableEntity, "Validation failed: Media attachments are invalid");
@@ -334,13 +353,17 @@ namespace PrivaPub.Domain.Statuses
 				.Modify(p => p.Revisions, new List<PostRevision>())
 				.ExecuteAsync(token);
 			await DB.Default.DeleteAsync<TimelineEntry>(e => e.PostId == post.ID || e.ReblogOfPostId == post.ID);
-			if (!string.IsNullOrEmpty(post.AnsweringToPostId))
+			// boosts of it end with it, as on Mastodon, so no count keeps them
+			await DB.Default.Update<PostEntity>().Match(p => p.ReblogOfPostId == post.ID && !p.DeletedAt.HasValue)
+				.Modify(p => p.DeletedAt, DateTime.UtcNow).ExecuteAsync(token);
+			if (!string.IsNullOrEmpty(post.AnsweringToPostId) && Counted.Reply(post))
 				await DB.Default.Update<PostEntity>().MatchID(post.AnsweringToPostId).Modify(b => b.Inc(p => p.RepliesCount, -1)).ExecuteAsync(token);
+			await DB.Default.DeleteAsync<Models.Social.Pin>(p => p.PostId == post.ID);//a deleted post no longer takes a pin
 			if (audience.Count > 0)
 			{
 				var delete = ActivityPubRenderer.Delete(author, post.ObjectURI, $"delete-{post.ID}",
 					new JsonArray(post.To.Select(t => (JsonNode)t).ToArray()), new JsonArray(post.Cc.Select(c => (JsonNode)c).ToArray()));
-				await _delivery.Enqueue(author, audience, delete, token);
+				await _outbox.Publish(author, post, delete, token);//the post in hand still has its group and mentions
 				var group = string.IsNullOrEmpty(post.GroupId) ? default : await _localActors.FindById(LocalActorKind.Group, post.GroupId, token);
 				if (group is { IsCircle: false })
 					await _groups.Announce(group, delete, post.ObjectURI, isNewPost: false, token);
@@ -0,0 +1,60 @@
+using MongoDB.Entities;
+
+using PrivaPub.Federation.Objects;
+using PrivaPub.Infrastructure.Http;
+using PrivaPub.Infrastructure.Jobs;
+using PrivaPub.Models.Jobs;
+using PrivaPub.Models.User;
+using PrivaPub.StaticServices;
+
+namespace PrivaPub.Federation.Actors
+{
+	// A remote account's follower, following and post counts, as its own server publishes them (the totalItems of its
+	// followers, following and outbox collections). Read when the account is fetched, at most once a day, never when
+	// someone looks at it; a hidden or missing collection leaves its count unknown. Mastodon and GoToSocial do the same.
+	public class AccountCountsJob : IJobHandler
+	{
+		readonly IRemoteActorService _remoteActors;
+		readonly DbEntities _dbEntities;
+
+		public AccountCountsJob(IRemoteActorService remoteActors, DbEntities dbEntities)
+		{
+			_remoteActors = remoteActors;
+			_dbEntities = dbEntities;
+		}
+
+		public JobKind Kind => JobKind.CountAccount;
+		public int Concurrency => 2;
+		public int MaxAttempts => 2;
+		public int PerHostLimit => 1;
+
+		public static string DedupeKey(string actorUri, DateTime day) => $"count|{actorUri}|{day:yyyyMMdd}";
+
+		public async Task<JobOutcome> Handle(Job job, CancellationToken token)
+		{
+			var actor = await _dbEntities.ForeignAvatars.Match(a => a.ActorURI == job.Payload && !a.DeletionAt.HasValue).ExecuteFirstAsync(token);
+			if (actor == default)
+				return JobOutcome.Done;
+			await DB.Default.Update<ForeignAvatar>().MatchID(actor.ID)
+				.Modify(a => a.FollowersCount, await Total(actor, actor.FollowersURL, token))
+				.Modify(a => a.FollowingCount, await Total(actor, actor.FollowingURL, token))
+				.Modify(a => a.StatusesCount, await Total(actor, actor.OutboxURL, token))
+				.Modify(a => a.CountedAt, DateTime.UtcNow)
+				.ExecuteAsync(token);
+			return JobOutcome.Done;
+		}
+
+		// only from the actor's own server, as everything we believe about it
+		async Task<int?> Total(ForeignAvatar actor, string collection, CancellationToken token)
+		{
+			if (string.IsNullOrEmpty(collection) || !Origin.Same(collection, actor.ActorURI))
+				return default;
+			using var scope = HttpScope.For("collection");
+			using var fetched = await _remoteActors.FetchObject(collection, token);
+			return fetched != default && fetched.Root.ValueKind == System.Text.Json.JsonValueKind.Object
+				&& fetched.Root.TryGetProperty("totalItems", out var total) && total.TryGetInt32(out var count) && count >= 0
+				? count
+				: default;
+		}
+	}
+}
@@ -62,6 +62,7 @@ namespace PrivaPub.Federation.Actors
 	{
 		string BaseAddress { get; }
 		Task<LocalActor> FindByUserName(string userName, CancellationToken token);
+		Task<GoneActor> Gone(string userName, CancellationToken token);
 		Task<LocalActor> FindById(LocalActorKind kind, string id, CancellationToken token);
 		Task<LocalActor> FindByUri(string actorUri, CancellationToken token);
 		Task<LocalActor> GetInstanceActor(CancellationToken token);
@@ -71,6 +72,9 @@ namespace PrivaPub.Federation.Actors
 		LocalActor FromGroup(GroupEntity group);
 	}

+	// a persona or group that was deleted: its name stays reserved, and its documents answer 410 with this
+	public sealed record GoneActor(string Uri, string FormerType, DateTime DeletedAt);
+
 	public class LocalActorService : ILocalActorService
 	{
 		public const string InstanceUserName = "privapub";
@@ -113,6 +117,18 @@ namespace PrivaPub.Federation.Actors
 			return group == default ? default : FromGroup(group);
 		}

+		public async Task<GoneActor> Gone(string userName, CancellationToken token)
+		{
+			if (string.IsNullOrEmpty(userName))
+				return default;
+			userName = userName.ToLowerInvariant();
+			var avatar = await _dbEntities.Avatars.Match(a => a.UserName == userName && a.DeletionAt.HasValue).ExecuteFirstAsync(token);
+			if (avatar != default)
+				return new GoneActor($"{BaseAddress}/peasants/{avatar.UserName}", "Person", avatar.DeletionAt.Value);
+			var group = await _dbEntities.Groups.Match(g => g.UserName == userName && g.DeletionAt.HasValue).ExecuteFirstAsync(token);
+			return group == default ? default : new GoneActor($"{BaseAddress}/peasants/{group.UserName}", "Group", group.DeletionAt.Value);
+		}
+
 		public async Task<LocalActor> FindById(LocalActorKind kind, string id, CancellationToken token)
 		{
 			switch (kind)
@@ -36,9 +36,12 @@ namespace PrivaPub.Federation.Actors
 		readonly DbEntities _dbEntities;
 		readonly IOptionsMonitor<FederationOptions> _options;

+		readonly Infrastructure.Jobs.IJobQueue _jobs;
+
 		public RemoteActorService(IFederationHttp http, ILocalActorService localActors, IMemoryCache cache, DbEntities dbEntities,
-			IOptionsMonitor<FederationOptions> options = default)
+			IOptionsMonitor<FederationOptions> options = default, Infrastructure.Jobs.IJobQueue jobs = default)
 		{
+			_jobs = jobs;
 			_http = http;
 			_localActors = localActors;
 			_cache = cache;
@@ -89,7 +92,16 @@ namespace PrivaPub.Federation.Actors
 				return cached;

 			var key = cached == default ? default : actor.Key(cached.PublicKeyId);
-			return await Upsert(actor, key ?? actor.Keys.FirstOrDefault(), token);
+			return await Counted(await Upsert(actor, key ?? actor.Keys.FirstOrDefault(), token), token);
+		}
+
+		// its counts are read once a day, after it was fetched (AccountCountsJob)
+		async Task<ForeignAvatar> Counted(ForeignAvatar stored, CancellationToken token)
+		{
+			if (_jobs != default && stored is { DeletionAt: null } && Uri.TryCreate(stored.ActorURI, UriKind.Absolute, out var uri))
+				await _jobs.Enqueue(Models.Jobs.JobKind.CountAccount, stored.ActorURI, uri.Host.ToLowerInvariant(),
+					AccountCountsJob.DedupeKey(stored.ActorURI, DateTime.UtcNow), token);
+			return stored;
 		}

 		public async Task<ForeignAvatar> GetActorByKeyId(string keyId, bool refresh, CancellationToken token)
@@ -121,7 +133,7 @@ namespace PrivaPub.Federation.Actors
 			var key = actor?.Key(keyId);
 			if (key == default)
 				return default;
-			return await Upsert(actor, key, token);
+			return await Counted(await Upsert(actor, key, token), token);
 		}

 		public bool KeyTemporarilyUnavailable(string keyId) => Origin.Of(keyId) != default && _http.FailedTemporarily(StripFragment(keyId));
@@ -17,6 +17,7 @@ using PrivaPub.Domain.Privacy;
 using PrivaPub.Federation.Actors;
 using PrivaPub.Federation.Rendering;
 using PrivaPub.Federation.Inbox;
+using PrivaPub.Federation.Outbox;
 using PrivaPub.Federation.Signing;
 using PrivaPub.Infrastructure.Http;
 using PrivaPub.Models.Group;
@@ -52,6 +53,20 @@ namespace PrivaPub.Federation.Controllers
 		public async Task<IActionResult> GetActor(string actor, CancellationToken token)
 		{
 			var local = await _localActors.FindByUserName(actor, token);
+			if (local == default && await _localActors.Gone(actor, token) is { } gone)
+				return new ContentResult
+				{
+					Content = new JsonObject
+					{
+						["@context"] = ActivityPubRenderer.ActivityStreams,
+						["id"] = gone.Uri,
+						["type"] = "Tombstone",
+						["formerType"] = gone.FormerType,
+						["deleted"] = ActivityPubRenderer.Timestamp(gone.DeletedAt)
+					}.ToJsonString(),
+					ContentType = ActivityContentType,
+					StatusCode = StatusCodes.Status410Gone
+				};
 			if (local is not { IsFederated: true })
 				return NotFound();
 			if (WantsHtml() && local.Kind != LocalActorKind.Application)
@@ -69,9 +84,8 @@ namespace PrivaPub.Federation.Controllers

 			if (!page)
 			{
-				var total = local.Kind == LocalActorKind.Group
-					? await DB.Default.CountAsync<PostEntity>(f => f.Where(p => p.GroupId == local.Id) & f.Where(VisibilityPolicy.IsPublic), token)
-					: await DB.Default.CountAsync<PostEntity>(f => f.Where(p => p.GroupUserId == local.Id && !p.IsFederatedCopy) & f.Where(VisibilityPolicy.IsPublic), token);
+				// as Mastodon's: statuses_count, though only public posts are listed
+				var total = await Counted.PostsBy(local, token);
 				return Activity(ActivityPubRenderer.OrderedCollection(local.Outbox, (int)total, default, $"{local.Outbox}?page=true"));
 			}

@@ -87,7 +101,7 @@ namespace PrivaPub.Federation.Controllers
 			{
 				if (local.Kind == LocalActorKind.Group)
 				{
-					items.Add(ActivityPubRenderer.Announce(local, post.ObjectURI, $"announce-{post.ID}"));
+					items.Add(ActivityPubRenderer.Announce(local, post.ObjectURI, $"announce-{post.ID}", post.CreationDate));
 					continue;
 				}
 				if (post.ReblogOfPostId != default)
@@ -122,7 +136,13 @@ namespace PrivaPub.Federation.Controllers
 		public async Task<IActionResult> Following(string actor, CancellationToken token)
 		{
 			var local = await _localActors.FindByUserName(actor, token);
-			return local is not { IsFederated: true } ? NotFound() : Activity(ActivityPubRenderer.OrderedCollection(local.Following, 0, default));
+			if (local is not { IsFederated: true })
+				return NotFound();
+			// the count, as following_count says it; who is followed is never listed (FEDERATION.md)
+			var following = local.Kind == LocalActorKind.Person
+				? await DB.Default.CountAsync<Following>(f => f.AvatarId == local.Id && f.State == FollowState.Accepted, token)
+				: 0;
+			return Activity(ActivityPubRenderer.OrderedCollection(local.Following, (int)following, default));
 		}

 		[HttpGet, Route("{actor}/flock")]
@@ -185,11 +205,13 @@ namespace PrivaPub.Federation.Controllers
 		public async Task<IActionResult> Post(string actor, string postId, CancellationToken token)
 		{
 			var (local, post) = await PublicPost(actor, postId, token);
-			if (post == default && await CirclePost(actor, postId, token) is { } circlePost)
+			if (post == default && await SignedPost(actor, postId, token) is { } signed)
 			{
-				var circleNote = ActivityPubRenderer.Note(circlePost.Post, circlePost.Author, circlePost.Circle, circlePost.Post.InReplyToURI);
-				circleNote["@context"] = ActivityPubRenderer.Context();
-				return Activity(circleNote);
+				if (signed.Post.DeletedAt.HasValue)
+					return TombstoneOf(signed.Author, signed.Post);
+				var signedNote = (JsonObject)signed.Note.DeepClone();
+				signedNote["@context"] = ActivityPubRenderer.Context();
+				return Activity(signedNote);
 			}
 			if (post == default)
 				return await Tombstone(actor, postId, token) ?? NotFound();
@@ -236,20 +258,55 @@ namespace PrivaPub.Federation.Controllers
 			{
 				var booster = await _localActors.FindByUserName(actor, token);
 				var uri = booster?.ActivityUri(activityId);
+				if (booster is { Kind: LocalActorKind.Group, IsCircle: false })
+					return await GroupAnnounce(booster, activityId, uri, token);
 				var reblog = uri == default ? default : await _dbEntities.Posts.Match(p => p.ObjectURI == uri && !p.DeletedAt.HasValue).ExecuteFirstAsync(token);
 				var rendered = reblog == default ? default : await AnnounceFor(reblog, token);
+				if (rendered != default && WantsHtml() && await _dbEntities.Posts.MatchID(reblog.ReblogOfPostId).ExecuteFirstAsync(token) is { } boosted)
+					return Redirect(boosted.Url ?? boosted.ObjectURI);//a boost has no page of its own: the boosted post's
 				return rendered == default ? NotFound() : Activity(rendered);
 			}
 			if (!activityId.StartsWith("create-", StringComparison.Ordinal))
 				return NotFound();
 			var (local, post) = await PublicPost(actor, activityId["create-".Length..], token);
-			return post == default ? NotFound() : Activity(await CreateFor(post, local, token));
+			if (post != default)
+				return Activity(await CreateFor(post, local, token));
+			return await SignedPost(actor, activityId["create-".Length..], token) is { Post.DeletedAt: null } signed
+				? Activity(ActivityPubRenderer.Create(signed.Author, (JsonObject)signed.Note.DeepClone(), activityId))
+				: NotFound();
+		}
+
+		// A DM's `context`: the conversation's posts, for its participants (or their servers' instance actors) only.
+		[HttpGet, Route("{actor}/whispers/{conversationId}")]
+		public async Task<IActionResult> Whispers(string actor, string conversationId, CancellationToken token)
+		{
+			var local = await _localActors.FindByUserName(actor, token);
+			if (local is not { IsFederated: true, Kind: LocalActorKind.Person })
+				return NotFound();
+			var uri = local.ConversationUri(conversationId);
+			var conversation = await _dbEntities.DmGroups.Match(g => g.ID == conversationId && g.ConversationURI == uri && !g.DeletionAt.HasValue).ExecuteFirstAsync(token);
+			if (conversation == default || !SignedFetchAuthorizer.MayReadConversation(conversation, await _fetches.Requester(Request, token)))
+				return NotFound();
+			var posts = await _dbEntities.Posts
+				.Match(p => p.ConversationId == conversationId && p.Visibility == PostVisibility.Direct && !p.DeletedAt.HasValue)
+				.Sort(p => p.CreationDate, Order.Ascending)
+				.ExecuteAsync(token);
+			return Activity(new JsonObject
+			{
+				["@context"] = ActivityPubRenderer.ActivityStreams,
+				["id"] = uri,
+				["type"] = "OrderedCollection",
+				["totalItems"] = posts.Count,
+				["orderedItems"] = new JsonArray(posts.Select(p => (JsonNode)p.ObjectURI).ToArray())
+			});
 		}

 		[HttpPost, Route("{actor}/mouth"), EnableRateLimiting(RateLimiting.Inbox)]
 		public async Task<IActionResult> Inbox(string actor, CancellationToken token)
 		{
 			var local = await _localActors.FindByUserName(actor, token);
+			if (local == default && await _localActors.Gone(actor, token) != default)
+				return StatusCode(StatusCodes.Status410Gone);
 			if (local is not { IsFederated: true })
 				return Answer(_inbox.NoSuchRecipient(Request));
 			return Answer(await _inbox.Receive(Request, local, token));
@@ -275,18 +332,37 @@ namespace PrivaPub.Federation.Controllers
 			return (local, post);
 		}

-		async Task<(LocalActor Author, LocalActor Circle, PostEntity Post)?> CirclePost(string actor, string postId, CancellationToken token)
+		// A followers-only, direct or circle post (deleted ones included), for a signed request from someone it was for
+		// (SignedFetchAuthorizer.MayRead). It is rendered as it was delivered: a circle post also names, in cc, the requesting
+		// member, or the members on the requesting instance actor's server.
+		async Task<(LocalActor Author, PostEntity Post, JsonObject Note)?> SignedPost(string actor, string postId, CancellationToken token)
 		{
 			var local = await _localActors.FindByUserName(actor, token);
-			if (local is not { Kind: LocalActorKind.Person })
+			if (local is not { IsFederated: true, Kind: LocalActorKind.Person })
 				return default;
 			var post = await _dbEntities.Posts
-				.Match(p => p.ID == postId && p.GroupUserId == local.Id && !p.IsFederatedCopy && !p.DeletedAt.HasValue && p.Visibility == PostVisibility.Circle)
+				.Match(p => p.ID == postId && p.GroupUserId == local.Id && !p.IsFederatedCopy && p.ReblogOfPostId == null
+					&& (p.Visibility == PostVisibility.FollowersOnly || p.Visibility == PostVisibility.Direct || p.Visibility == PostVisibility.Circle))
 				.ExecuteFirstAsync(token);
-			var circle = post == default ? default : await _dbEntities.Groups.MatchID(post.GroupId).ExecuteFirstAsync(token);
-			if (circle == default || !SignedFetchAuthorizer.MayReadCircle(circle, await _fetches.Requester(Request, token)))
+			if (post == default)
 				return default;
-			return (local, _localActors.FromGroup(circle), post);
+			var requester = await _fetches.Requester(Request, token);
+			if (!await _fetches.MayRead(post, requester, token))
+				return default;
+			if (post.Visibility == PostVisibility.Circle)
+			{
+				var circle = await _dbEntities.Groups.MatchID(post.GroupId).ExecuteFirstAsync(token);
+				var note = ActivityPubRenderer.Note(post, local, _localActors.FromGroup(circle), post.InReplyToURI);
+				var readers = SignedFetchAuthorizer.CircleReaders(circle, requester);
+				var named = readers.Count == 0 ? new List<Models.User.ForeignAvatar>() : await _dbEntities.ForeignAvatars.Match(a => readers.Contains(a.ActorURI)).ExecuteAsync(token);
+				return (local, post, OutboxPublisher.Naming(note, named));
+			}
+			var rendered = post.Visibility == PostVisibility.Direct
+				? ActivityPubRenderer.DirectNote(post, local, Array.Empty<(string, string)>(), post.ContextURI)
+				: ActivityPubRenderer.Note(post, local, default, post.InReplyToURI);
+			rendered["to"] = new JsonArray(post.To.Select(t => (JsonNode)t).ToArray());
+			rendered["cc"] = new JsonArray(post.Cc.Select(c => (JsonNode)c).ToArray());
+			return (local, post, rendered);
 		}

 		async Task<IActionResult> Tombstone(string actor, string postId, CancellationToken token)
@@ -298,8 +374,11 @@ namespace PrivaPub.Federation.Controllers
 				.Match(p => p.ID == postId && p.GroupUserId == local.Id && !p.IsFederatedCopy && p.DeletedAt.HasValue
 					&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
 				.ExecuteFirstAsync(token);
-			if (deleted == default)
-				return default;
+			return deleted == default ? default : TombstoneOf(local, deleted);
+		}
+
+		ContentResult TombstoneOf(LocalActor local, PostEntity deleted)
+		{
 			var tombstone = new JsonObject
 			{
 				["@context"] = ActivityPubRenderer.ActivityStreams,
@@ -311,6 +390,24 @@ namespace PrivaPub.Federation.Controllers
 			return new ContentResult { Content = tombstone.ToJsonString(), ContentType = ActivityContentType, StatusCode = StatusCodes.Status410Gone };
 		}

+		// A community's announce: one GroupDistributor sent (kept as sent), or one its outbox lists (announce-{postId}),
+		// while the post it is about is still shown; 410 once that post is gone.
+		async Task<IActionResult> GroupAnnounce(LocalActor group, string activityId, string uri, CancellationToken token)
+		{
+			if (await DB.Default.Find<GroupAnnouncement>().Match(a => a.ActivityURI == uri && a.GroupId == group.Id).ExecuteFirstAsync(token) is { } kept)
+			{
+				var about = await _dbEntities.Posts.Match(p => p.ObjectURI == kept.ObjectURI).ExecuteFirstAsync(token);
+				if (!VisibilityPolicy.Shown(about) || about.Visibility is not (PostVisibility.Public or PostVisibility.Unlisted))
+					return StatusCode(StatusCodes.Status410Gone);
+				var body = JsonNode.Parse(kept.Body)!.AsObject();
+				body["@context"] = ActivityPubRenderer.Context();
+				return Activity(body);
+			}
+			var postId = activityId["announce-".Length..];
+			var post = await _dbEntities.Posts.Match(p => p.ID == postId && p.GroupId == group.Id).Match(VisibilityPolicy.IsPublic).ExecuteFirstAsync(token);
+			return post == default ? NotFound() : Activity(ActivityPubRenderer.Announce(group, post.ObjectURI, activityId, post.CreationDate));
+		}
+
 		async Task<JsonObject> AnnounceFor(PostEntity reblog, CancellationToken token)
 		{
 			var original = await _dbEntities.Posts.MatchID(reblog.ReblogOfPostId).ExecuteFirstAsync(token);
@@ -349,7 +446,9 @@ namespace PrivaPub.Federation.Controllers
 		{
 			if (HttpMethods.IsGet(Request.Method))
 				Response.Headers.Vary = "Accept";
-			if (_federation.CurrentValue.SecureMode && HttpMethods.IsGet(Request.Method)
+			// SecureMode asks every reader of ActivityPub documents for a signature, except for the instance actor, whose key
+			// peers need first, and except for browsers, which only get redirected to the public pages
+			if (_federation.CurrentValue.SecureMode && HttpMethods.IsGet(Request.Method) && !WantsHtml()
 				&& !string.Equals(context.RouteData.Values["actor"] as string, LocalActorService.InstanceUserName, StringComparison.OrdinalIgnoreCase)
 				&& await _fetches.Requester(Request, HttpContext.RequestAborted) == default)
 			{
@@ -49,6 +49,8 @@ namespace PrivaPub.Federation.Controllers
 				if (parts.Length != 2 || !parts[1].Equals(domain, StringComparison.OrdinalIgnoreCase))
 					return NotFound();
 				actor = await _localActors.FindByUserName(parts[0], token);
+				if (actor == default && await _localActors.Gone(parts[0], token) != default)
+					return StatusCode(StatusCodes.Status410Gone);
 			}
 			else
 				actor = await _localActors.FindByUri(resource, token);
@@ -92,8 +94,8 @@ namespace PrivaPub.Federation.Controllers
 		[HttpGet, Route("/nodeinfo/{version:regex(^2\\.[[01]]$)}")]
 		public async Task<IActionResult> NodeInfo(string version, CancellationToken token)
 		{
-			var users = await DB.Default.CountAsync<Avatar>(a => !a.DeletionAt.HasValue, token);
-			var posts = await DB.Default.CountAsync<PostEntity>(f => f.Where(p => !p.IsFederatedCopy && p.ReblogOfPostId == null) & f.Where(VisibilityPolicy.IsPublic), token);
+			var users = await Counted.Users(token);
+			var posts = await Counted.LocalPosts(token);
 			var software = new JsonObject { ["name"] = "privapub", ["version"] = BuildInfo.Ref };
 			if (version == "2.1")
 			{
@@ -109,7 +111,12 @@ namespace PrivaPub.Federation.Controllers
 				["openRegistrations"] = _registrations.CurrentValue.IsOpen,
 				["usage"] = new JsonObject
 				{
-					["users"] = new JsonObject { ["total"] = users },
+					["users"] = new JsonObject
+					{
+						["total"] = users,
+						["activeMonth"] = await Counted.ActiveUsers(30, token),
+						["activeHalfyear"] = await Counted.ActiveUsers(180, token)
+					},
 					["localPosts"] = posts
 				},
 				["metadata"] = new JsonObject
@@ -0,0 +1,63 @@
+using MongoDB.Entities;
+
+using PrivaPub.Domain.Privacy;
+using PrivaPub.Models.Post;
+using PrivaPub.Models.Social;
+using PrivaPub.Models.User;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Federation.Inbox
+{
+	// A remote account that deleted itself keeps its posts, hidden (owner decision 2026-10-03), but leaves nothing in our
+	// numbers: its likes, downvotes, reactions and poll votes go, and the counters they had moved come back, as do the
+	// reblog, reply and quote counts its own posts had added. Its notifications go too. ForgottenAt makes it run once.
+	public static class GoneActors
+	{
+		public static async Task Forget(ForeignAvatar actor, CancellationToken token)
+		{
+			if (actor == default || actor.ForgottenAt.HasValue)
+				return;
+			var uri = actor.ActorURI;
+
+			foreach (var like in await DB.Default.Find<Favourite>().Match(f => f.ActorURI == uri).ExecuteAsync(token))
+			{
+				await DB.Default.Update<PostEntity>().MatchID(like.PostId).Modify(b => b.Inc(p => p.FavouritesCount, -1)).ExecuteAsync(token);
+				await DB.Default.DeleteAsync<Favourite>(like.ID);
+			}
+			foreach (var down in await DB.Default.Find<Downvote>().Match(d => d.ActorURI == uri).ExecuteAsync(token))
+			{
+				await DB.Default.Update<PostEntity>().MatchID(down.PostId).Modify(b => b.Inc(p => p.DownvotesCount, -1)).ExecuteAsync(token);
+				await DB.Default.DeleteAsync<Downvote>(down.ID);
+			}
+			await DB.Default.DeleteAsync<Reaction>(r => r.ActorURI == uri);
+			foreach (var ballot in (await DB.Default.Find<PollVote>().Match(v => v.ActorURI == uri).ExecuteAsync(token)).GroupBy(v => v.PostId))
+			{
+				var poll = await DB.Default.Find<PostEntity>().MatchID(ballot.Key).ExecuteFirstAsync(token);
+				if (poll?.Poll != default)
+				{
+					var update = DB.Default.Update<PostEntity>().MatchID(poll.ID);
+					foreach (var vote in ballot.Where(v => v.Choice >= 0 && v.Choice < poll.Poll.Options.Count))
+						update = update.Modify(b => b.Inc($"{nameof(PostEntity.Poll)}.{nameof(PostPoll.Options)}.{vote.Choice}.{nameof(PollOption.Votes)}", -1));
+					if (poll.Poll.VotersCount.HasValue)
+						update = update.Modify(b => b.Inc($"{nameof(PostEntity.Poll)}.{nameof(PostPoll.VotersCount)}", -1));
+					await update.ExecuteAsync(token);
+				}
+				await DB.Default.DeleteAsync<PollVote>(v => v.PostId == ballot.Key && v.ActorURI == uri);
+			}
+
+			foreach (var post in await DB.Default.Find<PostEntity>().Match(p => p.ActorURI == uri && !p.DeletedAt.HasValue).ExecuteAsync(token))
+			{
+				if (!string.IsNullOrEmpty(post.ReblogOfPostId))
+					await DB.Default.Update<PostEntity>().MatchID(post.ReblogOfPostId).Modify(b => b.Inc(p => p.ReblogsCount, -1)).ExecuteAsync(token);
+				if (!string.IsNullOrEmpty(post.AnsweringToPostId) && Counted.Reply(post))
+					await DB.Default.Update<PostEntity>().MatchID(post.AnsweringToPostId).Modify(b => b.Inc(p => p.RepliesCount, -1)).ExecuteAsync(token);
+				if (!string.IsNullOrEmpty(post.QuotedPostId) && post.QuoteState == QuoteState.Accepted)
+					await DB.Default.Update<PostEntity>().MatchID(post.QuotedPostId).Modify(b => b.Inc(p => p.QuotesCount, -1)).ExecuteAsync(token);
+			}
+
+			await DB.Default.DeleteAsync<Notification>(n => n.FromActorURI == uri);
+			await DB.Default.Update<ForeignAvatar>().MatchID(actor.ID).Modify(a => a.ForgottenAt, DateTime.UtcNow).ExecuteAsync(token);
+		}
+	}
+}
@@ -182,7 +182,7 @@ namespace PrivaPub.Federation.Inbox.Handlers
 			await _previews.Wanted(post, token);
 			await _quotes.Resolve(post, note, token);

-			if (parent != default)
+			if (parent != default && Domain.Privacy.Counted.Reply(post))
 				await DB.Default.Update<PostEntity>().MatchID(parent.ID).Modify(b => b.Inc(p => p.RepliesCount, 1)).ExecuteAsync(token);
 			await _fanout.Distribute(post, token);
 			if (conversation != default)
@@ -71,6 +71,7 @@ namespace PrivaPub.Federation.Inbox.Handlers
 				await DB.Default.DeleteAsync<Following>(f => f.TargetActorURI == actor.ActorURI);
 				await DB.Default.DeleteAsync<TimelineEntry>(e => e.AuthorAccountId == actor.ID);
 				await DB.Default.Update<PostEntity>().Match(p => p.ActorURI == actor.ActorURI).Modify(p => p.AuthorGone, true).ExecuteAsync(token);
+				await GoneActors.Forget(actor, token);
 				return;
 			}

@@ -104,7 +104,7 @@ namespace PrivaPub.Federation.Inbox
 			await DB.Default.DeleteAsync<ObjectRecord>(r => r.PostId == post.ID || r.ObjectURI == objectUri);
 			await DB.Default.DeleteAsync<TimelineEntry>(e => e.PostId == post.ID || e.ReblogOfPostId == post.ID);
 			await DB.Default.DeleteAsync<PostEntity>(p => p.ReblogOfPostId == post.ID);
-			if (!string.IsNullOrEmpty(post.AnsweringToPostId))
+			if (!string.IsNullOrEmpty(post.AnsweringToPostId) && Domain.Privacy.Counted.Reply(post))
 				await DB.Default.Update<PostEntity>().MatchID(post.AnsweringToPostId).Modify(b => b.Inc(p => p.RepliesCount, -1)).ExecuteAsync(token);
 			if (post.QuoteState == QuoteState.Accepted && !string.IsNullOrEmpty(post.QuotedPostId))
 				await DB.Default.Update<PostEntity>().MatchID(post.QuotedPostId).Modify(b => b.Inc(p => p.QuotesCount, -1)).ExecuteAsync(token);
@@ -1,5 +1,8 @@
+using MongoDB.Entities;
+
 using PrivaPub.Federation.Actors;
 using PrivaPub.Federation.Rendering;
+using PrivaPub.Models.Federation;

 using System.Security.Cryptography;
 using System.Text;
@@ -14,6 +17,26 @@ namespace PrivaPub.Federation.Outbox

 	public class GroupDistributor : IGroupDistributor
 	{
+		// so the announce's id resolves (PeasantsController.Grunt); a repeat of the same announce keeps the first
+		static async Task Keep(LocalActor group, JsonObject announce, string objectUri, CancellationToken token)
+		{
+			var body = (JsonObject)announce.DeepClone();
+			body.Remove("@context");
+			try
+			{
+				await DB.Default.SaveAsync(new GroupAnnouncement
+				{
+					GroupId = group.Id,
+					ActivityURI = body["id"]!.GetValue<string>(),
+					ObjectURI = objectUri,
+					Body = body.ToJsonString()
+				}, token);
+			}
+			catch (MongoDB.Driver.MongoWriteException ex) when (ex.WriteError?.Category == MongoDB.Driver.ServerErrorCategory.DuplicateKey)
+			{
+			}
+		}
+
 		readonly IDeliveryService _delivery;

 		public GroupDistributor(IDeliveryService delivery)
@@ -43,8 +66,13 @@ namespace PrivaPub.Federation.Outbox
 			// Every follower, the author's own server included: Lemmy 1.0 keeps its user's post pending until the community
 			// announces it back, and clears that before it answers the echo 400 ("Object is not remote").
 			await _delivery.EnqueueToFollowers(group, announce, token);
+			await Keep(group, announce, objectUri, token);
 			if (isNewPost && !string.IsNullOrEmpty(objectUri))
-				await _delivery.EnqueueToFollowers(group, ActivityPubRenderer.Announce(group, objectUri, $"announce-object-{key}"), token);
+			{
+				var boost = ActivityPubRenderer.Announce(group, objectUri, $"announce-object-{key}");
+				await _delivery.EnqueueToFollowers(group, boost, token);
+				await Keep(group, boost, objectUri, token);
+			}
 		}
 	}
 }
@@ -2,6 +2,7 @@ using PrivaPub.Federation.Actors;
 using PrivaPub.Federation.Rendering;
 using PrivaPub.Models.Federation;
 using PrivaPub.Models.Post;
+using PrivaPub.Models.User;
 using PrivaPub.StaticServices;

 using System.Text.Json.Nodes;
@@ -14,6 +15,7 @@ namespace PrivaPub.Federation.Outbox
 	{
 		Task<IReadOnlyList<string>> Audience(LocalActor author, PostEntity post, CancellationToken token);
 		Task Publish(LocalActor author, PostEntity post, JsonObject activity, CancellationToken token);
+		Task PublishUpdate(LocalActor author, PostEntity post, string reason, CancellationToken token);
 		Task PublishProfile(LocalActor actor, CancellationToken token);
 	}

@@ -73,25 +75,79 @@ namespace PrivaPub.Federation.Outbox
 			return inboxes.Where(i => !string.IsNullOrEmpty(i)).Distinct(StringComparer.Ordinal).ToList();
 		}

-		async Task<IReadOnlyList<string>> CircleMembers(string groupId, CancellationToken token)
+		async Task<IReadOnlyList<string>> CircleMembers(string groupId, CancellationToken token) =>
+			(await CircleRecipients(groupId, token)).Select(r => r.InboxURL).Distinct(StringComparer.Ordinal).ToList();
+
+		async Task<IReadOnlyList<ForeignAvatar>> CircleRecipients(string groupId, CancellationToken token)
 		{
 			var circle = string.IsNullOrEmpty(groupId) ? default : await _dbEntities.Groups.MatchID(groupId).ExecuteFirstAsync(token);
 			if (circle == default)
-				return Array.Empty<string>();
+				return Array.Empty<ForeignAvatar>();
 			var remote = circle.Members.Where(m => m.IsForeign).Select(m => m.AvatarId).ToList();
 			if (remote.Count == 0)
-				return Array.Empty<string>();
+				return Array.Empty<ForeignAvatar>();
 			return (await _dbEntities.ForeignAvatars.Match(a => remote.Contains(a.ActorURI)).ExecuteAsync(token))
-				.Select(a => a.InboxURL).Where(i => !string.IsNullOrEmpty(i)).Distinct(StringComparer.Ordinal).ToList();
+				.Where(a => !string.IsNullOrEmpty(a.InboxURL))
+				.ToList();
 		}

 		public async Task Publish(LocalActor author, PostEntity post, JsonObject activity, CancellationToken token)
 		{
+			if (post.Visibility == PostVisibility.Circle)
+			{
+				foreach (var member in await CircleRecipients(post.GroupId, token))
+					await _delivery.Enqueue(author, new[] { member.InboxURL }, Naming(activity, new[] { member }), token);
+				return;
+			}
 			var inboxes = await Audience(author, post, token);
 			if (inboxes.Count > 0)
 				await _delivery.Enqueue(author, inboxes, activity, token);
 		}

+		public async Task PublishUpdate(LocalActor author, PostEntity post, string reason, CancellationToken token)
+		{
+			var group = string.IsNullOrEmpty(post.GroupId) ? default : await _localActors.FindById(LocalActorKind.Group, post.GroupId, token);
+			await Publish(author, post, ActivityPubRenderer.UpdateOf(post, author, group, reason), token);
+		}
+
+		// Mastodon keeps a post only when it names one of its own accounts, and GoToSocial shows a post that is neither
+		// public nor for followers only to the accounts it mentions; a circle post names only the circle. So each member's
+		// copy, or a member's refetch, also names that member in cc and mentions them, silently, in its tags (owner decision
+		// 2026-10-04): it tells each member nothing but that they are in the circle.
+		public static JsonObject Naming(JsonObject activityOrObject, IEnumerable<ForeignAvatar> members)
+		{
+			var named = members.ToList();
+			var copy = (JsonObject)activityOrObject.DeepClone();
+			if (copy["object"] is JsonObject inner)
+			{
+				Name(copy, named, mention: false);
+				if (inner.ContainsKey("to"))
+					Name(inner, named, mention: true);
+			}
+			else
+				Name(copy, named, mention: copy.ContainsKey("attributedTo"));
+			return copy;
+		}
+
+		static void Name(JsonObject node, IReadOnlyList<ForeignAvatar> members, bool mention)
+		{
+			var cc = node["cc"] as JsonArray ?? new JsonArray();
+			var tags = node["tag"] as JsonArray ?? new JsonArray();
+			foreach (var member in members)
+			{
+				if (!cc.Any(c => c?.GetValue<string>() == member.ActorURI))
+					cc.Add(member.ActorURI);
+				if (mention && !tags.Any(t => t?["href"]?.GetValue<string>() == member.ActorURI))
+					tags.Add(new JsonObject { ["type"] = "Mention", ["href"] = member.ActorURI, ["name"] = Handle(member) });
+			}
+			node["cc"] = cc;
+			if (mention)
+				node["tag"] = tags;
+		}
+
+		static string Handle(ForeignAvatar member) =>
+			string.IsNullOrEmpty(member.UserName) ? member.ActorURI : $"@{member.UserName}@{new Uri(member.ActorURI).Authority}";
+
 		public async Task PublishProfile(LocalActor actor, CancellationToken token)
 		{
 			var document = ActivityPubRenderer.Actor(actor);
@@ -178,11 +178,11 @@ namespace PrivaPub.Federation.Rendering
 			return note;
 		}

-		public static JsonObject UpdateOf(PostEntity post, LocalActor author, string reason)
+		public static JsonObject UpdateOf(PostEntity post, LocalActor author, LocalActor group, string reason)
 		{
 			var note = post.Visibility == PostVisibility.Direct
 				? DirectNote(post, author, Array.Empty<(string, string)>(), post.ContextURI)
-				: Note(post, author, default, post.InReplyToURI);
+				: Note(post, author, group, post.InReplyToURI);
 			note["to"] = new JsonArray(post.To.Select(t => (JsonNode)t).ToArray());
 			note["cc"] = new JsonArray(post.Cc.Select(c => (JsonNode)c).ToArray());
 			return new JsonObject
@@ -357,13 +357,13 @@ namespace PrivaPub.Federation.Rendering
 			["object"] = note
 		};

-		public static JsonObject Announce(LocalActor group, string objectUri, string activityId) => new()
+		public static JsonObject Announce(LocalActor group, string objectUri, string activityId, DateTime? published = default) => new()
 		{
 			["@context"] = ActivityStreams,
 			["id"] = group.ActivityUri(activityId),
 			["type"] = "Announce",
 			["actor"] = group.Uri,
-			["published"] = Timestamp(DateTime.UtcNow),
+			["published"] = Timestamp(published ?? DateTime.UtcNow),
 			["to"] = new JsonArray(Public),
 			["cc"] = new JsonArray(group.Followers),
 			["object"] = objectUri
@@ -1,23 +1,34 @@
 using PrivaPub.Federation.Actors;
 using PrivaPub.Federation.Objects;
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.Post;
 using PrivaPub.Models.User;
+using PrivaPub.StaticServices;

 using GroupEntity = PrivaPub.Models.Group.Group;
+using PostEntity = PrivaPub.Models.Post.Post;

 namespace PrivaPub.Federation.Signing
 {
 	public interface ISignedFetchAuthorizer
 	{
 		Task<ForeignAvatar> Requester(HttpRequest request, CancellationToken token);
+		Task<bool> MayRead(PostEntity post, ForeignAvatar requester, CancellationToken token);
 	}

+	// Who may refetch a post that is not public (owner decision 2026-10-04). A server that received a followers-only post,
+	// a DM or a circle post refetches it, signed by the account it was for or by its instance actor, and Mastodon deletes its
+	// copy when the refetch answers 404. So the post is served to a signed request from someone it was for, or from the
+	// instance actor of a server where someone it was for lives; everyone else still gets 404.
 	public class SignedFetchAuthorizer : ISignedFetchAuthorizer
 	{
 		readonly IRemoteActorService _remoteActors;
+		readonly DbEntities _dbEntities;

-		public SignedFetchAuthorizer(IRemoteActorService remoteActors)
+		public SignedFetchAuthorizer(IRemoteActorService remoteActors, DbEntities dbEntities)
 		{
 			_remoteActors = remoteActors;
+			_dbEntities = dbEntities;
 		}

 		public async Task<ForeignAvatar> Requester(HttpRequest request, CancellationToken token)
@@ -33,8 +44,48 @@ namespace PrivaPub.Federation.Signing
 			return actor != default && HttpSignatures.Verify(actor.PublicKey, signingString, parameters.Signature) ? actor : default;
 		}

+		public async Task<bool> MayRead(PostEntity post, ForeignAvatar requester, CancellationToken token)
+		{
+			if (post == default || requester == default)
+				return false;
+			switch (post.Visibility)
+			{
+				case PostVisibility.Public or PostVisibility.Unlisted:
+					return true;
+				case PostVisibility.Circle:
+					var circle = string.IsNullOrEmpty(post.GroupId) ? default : await _dbEntities.Groups.MatchID(post.GroupId).ExecuteFirstAsync(token);
+					return circle != default && MayReadCircle(circle, requester);
+				case PostVisibility.Direct:
+					return Addressed(post).Any(uri => Is(requester, uri));
+				case PostVisibility.FollowersOnly:
+					if (Addressed(post).Any(uri => Is(requester, uri)))
+						return true;
+					var followers = await _dbEntities.Followers
+						.Match(f => f.LocalActorId == post.GroupUserId && f.LocalActorKind == LocalActorKind.Person && f.IsAccepted)
+						.ExecuteAsync(token);
+					return followers.Any(f => Is(requester, f.ActorURI));
+				default:
+					return false;
+			}
+		}
+
+		static IEnumerable<string> Addressed(PostEntity post) =>
+			post.To.Concat(post.Cc).Concat(post.Mentions.Select(m => m.ActorURI)).Where(uri => !string.IsNullOrEmpty(uri));
+
+		// the account itself, or the instance actor of the server it lives on
+		static bool Is(ForeignAvatar requester, string actorUri) =>
+			actorUri == requester.ActorURI || requester.AvatarType == AvatarType.Application && Origin.Same(actorUri, requester.ActorURI);
+
 		public static bool MayReadCircle(GroupEntity circle, ForeignAvatar requester) =>
-			requester != default && circle.Members.Any(m => m.IsForeign
-				&& (m.AvatarId == requester.ActorURI || requester.AvatarType == AvatarType.Application && Origin.Same(m.AvatarId, requester.ActorURI)));
+			requester != default && circle.Members.Any(m => m.IsForeign && Is(requester, m.AvatarId));
+
+		public static bool MayReadConversation(Models.Group.DmGroup conversation, ForeignAvatar requester) =>
+			requester != default && conversation.Members.Any(m => m.IsForeign && Is(requester, m.AvatarId));
+
+		// the members a refetch names in cc: the requesting member, or the members on an instance actor's server
+		public static IReadOnlyList<string> CircleReaders(GroupEntity circle, ForeignAvatar requester) =>
+			requester == default
+				? Array.Empty<string>()
+				: circle.Members.Where(m => m.IsForeign && Is(requester, m.AvatarId)).Select(m => m.AvatarId).ToList();
 	}
 }
@@ -54,6 +54,7 @@ namespace PrivaPub.Infrastructure.Data
 			await Plain<Group>(token, g => g.InvitationCode);

 			await Plain<DmGroup>(token, g => g.ParticipantsKey);
+			await Unique<GroupAnnouncement>(a => a.ActivityURI, Builders<GroupAnnouncement>.Filter.Type(a => a.ActivityURI, BsonType.String), token);

 			await Plain<Delivery>(token, d => d.DeliveredAt, d => d.AbandonedAt, d => d.NextAttemptAt);

@@ -0,0 +1,14 @@
+using MongoDB.Entities;
+
+using PrivaPub.Models.User;
+
+namespace PrivaPub.Infrastructure.Data.Migrations
+{
+	// Recovery codes were stored in plain text and never expired; from now on only a hash with a one-hour expiry is kept.
+	// The old codes are dropped: anyone mid-recovery asks again.
+	public class _011_recovery_codes_are_hashed : IMigration
+	{
+		public async Task UpgradeAsync() =>
+			await DB.Default.DeleteAsync<EmailRecovery>(r => r.CodeHash == null);
+	}
+}
@@ -0,0 +1,35 @@
+using MongoDB.Driver;
+using MongoDB.Entities;
+
+using PrivaPub.Federation.Inbox;
+using PrivaPub.Models.Post;
+using PrivaPub.Models.User;
+
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Infrastructure.Data.Migrations
+{
+	// replies_count now counts only public and unlisted replies, and accounts that deleted themselves leave nothing in the
+	// counts (GoneActors). Both are recounted once for what was stored before.
+	public class _012_counts_follow_one_rule : IMigration
+	{
+		public async Task UpgradeAsync()
+		{
+			var counted = (await DB.Default.Find<PostEntity, string>()
+					.Match(p => p.AnsweringToPostId != null && !p.DeletedAt.HasValue && !p.AuthorGone
+						&& (p.Visibility == PostVisibility.Public || p.Visibility == PostVisibility.Unlisted))
+					.Project(p => p.AnsweringToPostId)
+					.ExecuteAsync())
+				.GroupBy(id => id)
+				.ToDictionary(g => g.Key, g => g.Count());
+			var stale = await DB.Default.Find<PostEntity>().Match(p => p.RepliesCount > 0).Project(p => p.Include(x => x.ID).Include(x => x.RepliesCount)).ExecuteAsync();
+			foreach (var post in stale.Where(p => counted.GetValueOrDefault(p.ID) != p.RepliesCount))
+				await DB.Default.Update<PostEntity>().MatchID(post.ID).Modify(p => p.RepliesCount, counted.GetValueOrDefault(post.ID)).ExecuteAsync();
+			foreach (var (id, count) in counted.Where(c => stale.All(p => p.ID != c.Key)))
+				await DB.Default.Update<PostEntity>().MatchID(id).Modify(p => p.RepliesCount, count).ExecuteAsync();
+
+			foreach (var gone in await DB.Default.Find<ForeignAvatar>().Match(a => a.DeletionAt != null && a.ForgottenAt == null).ExecuteAsync())
+				await GoneActors.Forget(gone, CancellationToken.None);
+		}
+	}
+}
@@ -99,6 +99,8 @@ namespace PrivaPub.Middleware
 				.AddSingleton<IPollService, PollService>()
 				.AddSingleton<IQuoteService, QuoteService>()
 				.AddSingleton<IJobHandler, PollRefreshJob>()
+				.AddSingleton<IJobHandler, RecoveryJob>()
+				.AddSingleton<IJobHandler, Federation.Actors.AccountCountsJob>()
 				.AddSingleton<IJobHandler, PollCloseJob>()
 				.AddSingleton<InstanceDescriber>()
 				.AddSingleton<IJobHandler>(services => services.GetRequiredService<InstanceDescriber>())
@@ -182,6 +184,8 @@ namespace PrivaPub.Middleware
 			return service
 				.AddTransient<IDataService, DataService>()
 				.AddTransient<IRootUsersService, RootUsersService>()
+				.AddScoped<IRootSessions, RootSessions>()
+				.AddScoped<IRootRemoval, RootRemoval>()
 				.AddTransient<IPublicAvatarUsersService, PublicAvatarUsersService>()
 				.AddTransient<IPrivateAvatarUsersService, PrivateAvatarUsersService>()
 				.AddTransient<IGroupUsersService, GroupUsersService>()
@@ -0,0 +1,15 @@
+using MongoDB.Entities;
+
+namespace PrivaPub.Models.Federation
+{
+	// An Announce a community sent (GroupDistributor), kept so its id resolves as both docs promise: announces are public,
+	// unlike follows, likes and blocks. Served only while the post it is about is still shown.
+	public class GroupAnnouncement : Entity
+	{
+		public string GroupId { get; set; }
+		public string ActivityURI { get; set; }
+		public string ObjectURI { get; set; }//the post it is about
+		public string Body { get; set; }//the Announce as sent, without @context
+		public DateTime PublishedAt { get; set; } = DateTime.UtcNow;
+	}
+}
@@ -29,7 +29,9 @@ namespace PrivaPub.Models.Jobs
 		FetchPreview,
 		RollupDay,
 		CrawlPlan,
-		CrawlInstance
+		CrawlInstance,
+		SendRecovery,
+		CountAccount
 	}

 	public enum JobState
@@ -87,6 +87,11 @@ namespace PrivaPub.Models.User
 		public DateTime? SuspendedAt { get; set; }
 		public DateTime? BannedAt { get; set; }
 		public DateTime? DeletionAt { get; set; }
+		public DateTime? ForgottenAt { get; set; }//its likes, votes, boosts and replies were taken out of our counts (GoneActors)
+		public int? FollowersCount { get; set; }//its own collections' totalItems, read at most daily (AccountCountsJob)
+		public int? FollowingCount { get; set; }
+		public int? StatusesCount { get; set; }
+		public DateTime? CountedAt { get; set; }
 	}

 	public class AvatarSettings
@@ -5,7 +5,9 @@ namespace PrivaPub.Models.User
 	public class EmailRecovery : Entity
 	{
 		public string RootUserId { get; set; }
-		public string RecoveryCode { get; set; }
+		public string RecoveryCode { get; set; }//plaintext codes before 2026-10-04; migration _011 removed them, never written now
+		public string CodeHash { get; set; }//sha-256 of the code, hex; the code itself exists only in the email
+		public DateTime ExpiresAt { get; set; }
 		public string RequestIP { get; set; }
 		public DateTime CreationDate { get; set; } = DateTime.UtcNow;
 	}
@@ -23,6 +23,8 @@ namespace PrivaPub.Models.User
 		public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
 		public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
 		public DateTime? DeletedAt { get; set; }
+		public DateTime? CredentialsChangedAt { get; set; }//when RootSessions last ended every session
+		public string SessionStamp { get; set; }//carried by every /clientapi token; a new one ends the tokens issued before
 	}

 	public class ContactItem
@@ -210,6 +210,7 @@ namespace PrivaPub.Services
 					group.UpdatedAt = DateTime.UtcNow;
 					await DB.Default.SaveAsync(group, token);
 				}
+				await FollowAsMember(group, form.AvatarId, token);

 				result.Data = ToView(group, form.AvatarId);
 				return result;
@@ -221,6 +222,33 @@ namespace PrivaPub.Services
 			}
 		}

+		// Joining by invitation is following, as a local follow of the group would be: the member counts among its
+		// followers (so /groupies and /flock agree) and gets its posts in the home timeline.
+		async Task FollowAsMember(GroupEntity group, string avatarId, CancellationToken token)
+		{
+			var persona = await _localActors.FindById(LocalActorKind.Person, avatarId, token);
+			var target = _localActors.FromGroup(group);
+			if (persona == default)
+				return;
+			await DB.Default.Update<Follower>()
+				.Match(f => f.LocalActorId == group.ID && f.LocalActorKind == LocalActorKind.Group && f.ActorURI == persona.Uri)
+				.Modify(f => f.InboxURL, persona.Inbox)
+				.Modify(f => f.SharedInboxURL, persona.SharedInbox)
+				.Modify(f => f.IsAccepted, true)
+				.Modify(b => b.SetOnInsert(f => f.CreationDate, DateTime.UtcNow))
+				.Option(o => o.IsUpsert = true)
+				.ExecuteAsync(token);
+			await DB.Default.Update<Models.Social.Following>()
+				.Match(f => f.AvatarId == persona.Id && f.TargetActorURI == target.Uri)
+				.Modify(f => f.TargetAccountId, group.ID)
+				.Modify(f => f.TargetIsLocal, true)
+				.Modify(f => f.TargetInboxURL, target.Inbox)
+				.Modify(f => f.State, Models.Social.FollowState.Accepted)
+				.Modify(b => b.SetOnInsert(f => f.CreatedAt, DateTime.UtcNow))
+				.Option(o => o.IsUpsert = true)
+				.ExecuteAsync(token);
+		}
+
 		public async Task<WebResult> LeaveGroup(string rootUserId, GroupMembershipForm form, CancellationToken token)
 		{
 			var result = new WebResult();
@@ -238,6 +266,12 @@ namespace PrivaPub.Services
 				group.Members.RemoveAll(m => !m.IsForeign && m.AvatarId == form.AvatarId);
 				group.UpdatedAt = DateTime.UtcNow;
 				await DB.Default.SaveAsync(group, token);
+				// leaving is unfollowing, as joining was following
+				var groupUri = _localActors.FromGroup(group).Uri;
+				var personaUri = (await _localActors.FindById(LocalActorKind.Person, form.AvatarId, token))?.Uri;
+				await DB.Default.DeleteAsync<Models.Social.Following>(f => f.AvatarId == form.AvatarId && f.TargetActorURI == groupUri);
+				if (personaUri != default)
+					await DB.Default.DeleteAsync<Follower>(f => f.LocalActorId == group.ID && f.LocalActorKind == LocalActorKind.Group && f.ActorURI == personaUri);
 				return result;
 			}
 			catch (Exception ex)
@@ -16,6 +16,7 @@ namespace PrivaPub.Services
 		Task<WebResult> UnbanUserAsync(UsersIds usersIds);

 		Task<WebResult> RemoveUserAsync(UsersIds usersIds);
+		Task<WebResult> RemoveSelfAsync(string rootId, string password);

 		Task<WebResult> UpdateUserAsync(UserForm userEmailForm, string userId);

@@ -33,6 +33,12 @@ namespace PrivaPub.Services
 				context.Fail("The account can no longer be used.");
 				return;
 			}
+			// a password recovery ends every session made before it (RootSessions gives the root a new stamp)
+			if ((root.SessionStamp ?? string.Empty) != (context.Principal.FindFirst(AuthTokenManager.SessionStamp)?.Value ?? string.Empty))
+			{
+				context.Fail("The account's sessions were ended.");
+				return;
+			}
 			if (context.Principal.Identity is not ClaimsIdentity identity)
 				return;
 			foreach (var policy in PolicyClaims)
@@ -0,0 +1,88 @@
+using MailKit.Net.Smtp;
+
+using Microsoft.Extensions.Localization;
+
+using MimeKit;
+
+using MongoDB.Entities;
+
+using PrivaPub.Infrastructure.Jobs;
+using PrivaPub.Models.Jobs;
+using PrivaPub.Models.User;
+using PrivaPub.Resources;
+
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+
+namespace PrivaPub.Services
+{
+	public sealed record RecoveryPayload(string RootUserId, string Host);
+
+	// Sends a password recovery link. Every request queues one of these, for an account that exists or not, so the answer
+	// to the request and its timing say nothing; SMTP's slowness and failures happen here, where nobody waits on them.
+	// The code exists only in the email: the database keeps its hash, for an hour.
+	public class RecoveryJob : IJobHandler
+	{
+		public const string Host = "recovery";
+		public static readonly TimeSpan CodeLifetime = TimeSpan.FromHours(1);
+
+		readonly AppConfigurationService _app;
+		readonly IStringLocalizer<GenericRes> _localizer;
+		readonly ILogger<RecoveryJob> _logger;
+
+		public RecoveryJob(AppConfigurationService app, IStringLocalizer<GenericRes> localizer, ILogger<RecoveryJob> logger)
+		{
+			_app = app;
+			_localizer = localizer;
+			_logger = logger;
+		}
+
+		public JobKind Kind => JobKind.SendRecovery;
+		public int Concurrency => 1;
+		public int MaxAttempts => 3;
+		public int PerHostLimit => 1;
+
+		public static string Hash(string code) => Convert.ToHexStringLower(SHA256.HashData(Encoding.UTF8.GetBytes(code ?? string.Empty)));
+
+		public async Task<JobOutcome> Handle(Job job, CancellationToken token)
+		{
+			var payload = JsonSerializer.Deserialize<RecoveryPayload>(job.Payload);
+			if (string.IsNullOrEmpty(payload?.RootUserId))
+				return JobOutcome.Done;//asked for an account that does not exist: there is nobody to write to
+			var user = await DB.Default.Find<RootUser>().MatchID(payload.RootUserId).ExecuteFirstAsync(token);
+			if (user is not { DeletedAt: null, IsBanned: false } || string.IsNullOrEmpty(user.Email))
+				return JobOutcome.Done;
+
+			var code = Convert.ToHexStringLower(RandomNumberGenerator.GetBytes(32));
+			await DB.Default.DeleteAsync<EmailRecovery>(r => r.RootUserId == user.ID);
+			await DB.Default.SaveAsync(new EmailRecovery { RootUserId = user.ID, CodeHash = Hash(code), ExpiresAt = DateTime.UtcNow + CodeLifetime }, token);
+
+			var email = _app.AppConfiguration.EmailConfiguration;
+			var message = new MimeMessage();
+			message.From.Add(new MailboxAddress("PrivaPub", email.SmtpUsername));
+			message.To.Add(MailboxAddress.Parse(user.Email));
+			message.Subject = _localizer["PrivaPub - Password recovery link"];
+			message.Body = new TextPart("plain")
+			{
+				Text = string.Format(_localizer[
+					"Hello,\n\nSomeone asked to reset the password of the PrivaPub login {0}. If it was you, open this link within an hour:\n{1}\n\nIf it was not you, ignore this email: nothing changes."],
+					user.UserName, $"{payload.Host}/password-recovery?rc={code}")
+			};
+			try
+			{
+				using var smtp = new SmtpClient();
+				await smtp.ConnectAsync(email.SmtpServer, email.SmtpPort, email.UseSSL, token);
+				await smtp.AuthenticateAsync(email.SmtpUsername, email.SmtpPassword, token);
+				await smtp.SendAsync(message, token);
+				await smtp.DisconnectAsync(quit: true, token);
+				return JobOutcome.Done;
+			}
+			catch (Exception ex) when (ex is not OperationCanceledException || !token.IsCancellationRequested)
+			{
+				_logger.LogWarning(ex, "The recovery email could not be sent");
+				return JobOutcome.Retry("smtp");
+			}
+		}
+	}
+}
@@ -0,0 +1,119 @@
+using MongoDB.Entities;
+
+using PrivaPub.Federation.Actors;
+using PrivaPub.Federation.Outbox;
+using PrivaPub.Federation.Rendering;
+using PrivaPub.Models.Federation;
+using PrivaPub.Models.Social;
+using PrivaPub.Models.User;
+using PrivaPub.StaticServices;
+
+using System.Text.Json.Nodes;
+
+using GroupEntity = PrivaPub.Models.Group.Group;
+using PostEntity = PrivaPub.Models.Post.Post;
+
+namespace PrivaPub.Services
+{
+	public interface IRootRemoval
+	{
+		Task<bool> Remove(string rootId, CancellationToken token);
+	}
+
+	// Deleting a root deletes everything public it had (owner decision 2026-10-04): each persona, and each group a persona
+	// owns, is announced deleted with a Delete of the actor to everyone who follows it, every member and everyone it
+	// follows; their posts are emptied; their names stay reserved, and their documents answer 410 from then on. The root's
+	// sessions end first, so nothing acts as it while it goes.
+	public class RootRemoval : IRootRemoval
+	{
+		readonly DbEntities _dbEntities;
+		readonly ILocalActorService _localActors;
+		readonly IDeliveryService _delivery;
+		readonly IRootSessions _sessions;
+
+		public RootRemoval(DbEntities dbEntities, ILocalActorService localActors, IDeliveryService delivery, IRootSessions sessions)
+		{
+			_dbEntities = dbEntities;
+			_localActors = localActors;
+			_delivery = delivery;
+			_sessions = sessions;
+		}
+
+		public async Task<bool> Remove(string rootId, CancellationToken token)
+		{
+			var root = await _dbEntities.RootUsers.MatchID(rootId).Match(u => u.DeletedAt == null).ExecuteFirstAsync(token);
+			if (root == default)
+				return false;
+			await _sessions.Revoke(root.ID, token);
+			var now = DateTime.UtcNow;
+
+			var avatarIds = (await _dbEntities.RootToAvatars.Match(ra => ra.RootId == root.ID).ExecuteAsync(token)).Select(ra => ra.AvatarId).ToList();
+			var avatars = await _dbEntities.Avatars.Match(a => avatarIds.Contains(a.ID) && !a.DeletionAt.HasValue).ExecuteAsync(token);
+			foreach (var avatar in avatars)
+			{
+				foreach (var group in await _dbEntities.Groups.Match(g => g.OwnerAvatarId == avatar.ID && !g.DeletionAt.HasValue).ExecuteAsync(token))
+				{
+					await Announce(_localActors.FromGroup(group), group.Members.Where(m => m.IsForeign).Select(m => m.AvatarId), token);
+					await DB.Default.Update<GroupEntity>().MatchID(group.ID).Modify(g => g.DeletionAt, now).ExecuteAsync(token);
+				}
+				var persona = _localActors.FromAvatar(avatar);
+				var followed = (await _dbEntities.Followings.Match(f => f.AvatarId == avatar.ID && !f.TargetIsLocal).ExecuteAsync(token))
+					.Select(f => f.TargetActorURI);
+				await Announce(persona, followed, token);
+				await DB.Default.Update<Avatar>().MatchID(avatar.ID).Modify(a => a.DeletionAt, now).ExecuteAsync(token);
+				await Empty(avatar.ID, now, token);
+			}
+
+			await DB.Default.Update<RootUser>().MatchID(root.ID)
+				.Modify(u => u.UserName, $"deleted-{root.ID}")//unique, so a second deletion never collides with the first
+				.Modify(u => u.Email, null)
+				.Modify(u => u.HashedPassword, null)
+				.Modify(u => u.Policies, new List<string>())
+				.Modify(u => u.IsBanned, false)
+				.Modify(u => u.IsEmailValidated, false)
+				.Modify(u => u.DeletedAt, now)
+				.ExecuteAsync(token);
+			await DB.Default.DeleteAsync<EmailRecovery>(r => r.RootUserId == root.ID);
+			return true;
+		}
+
+		// Delete{Actor}: to its followers' (shared) inboxes, and to the inboxes of the other accounts named
+		async Task Announce(LocalActor actor, IEnumerable<string> others, CancellationToken token)
+		{
+			var inboxes = (await _delivery.FollowerInboxes(actor, token)).ToList();
+			var named = others.Where(uri => !string.IsNullOrEmpty(uri)).Distinct().ToList();
+			if (named.Count > 0)
+				inboxes.AddRange((await _dbEntities.ForeignAvatars.Match(a => named.Contains(a.ActorURI)).ExecuteAsync(token))
+					.Select(a => string.IsNullOrEmpty(a.SharedInboxURL) ? a.InboxURL : a.SharedInboxURL));
+			await _delivery.Enqueue(actor, inboxes.Where(i => !string.IsNullOrEmpty(i)).Distinct(), new JsonObject
+			{
+				["@context"] = ActivityPubRenderer.Context(),
+				["id"] = actor.ActivityUri("delete-actor"),
+				["type"] = "Delete",
+				["actor"] = actor.Uri,
+				["object"] = actor.Uri,
+				["to"] = new JsonArray(ActivityPubRenderer.Public),
+				["cc"] = new JsonArray(actor.Followers)
+			}, token);
+		}
+
+		// a persona's posts keep their ids and lose their content, like a single deleted post; a group writes none of its own
+		static async Task Empty(string avatarId, DateTime now, CancellationToken token)
+		{
+			var postIds = (await DB.Default.Find<PostEntity>().Match(p => p.GroupUserId == avatarId && !p.IsFederatedCopy && !p.DeletedAt.HasValue)
+				.Project(p => p.Include(x => x.ID)).ExecuteAsync(token)).Select(p => p.ID).ToList();
+			if (postIds.Count == 0)
+				return;
+			await DB.Default.Update<PostEntity>().Match(p => postIds.Contains(p.ID))
+				.Modify(p => p.DeletedAt, now)
+				.Modify(p => p.Text, null)
+				.Modify(p => p.ContentHtml, null)
+				.Modify(p => p.Title, null)
+				.Modify(p => p.SpoilerText, null)
+				.Modify(p => p.Media, new List<Models.Post.PostMedia>())
+				.Modify(p => p.Revisions, new List<Models.Post.PostRevision>())
+				.ExecuteAsync(token);
+			await DB.Default.DeleteAsync<TimelineEntry>(e => postIds.Contains(e.PostId) || postIds.Contains(e.ReblogOfPostId));
+		}
+	}
+}
@@ -0,0 +1,44 @@
+using MongoDB.Entities;
+
+using OpenIddict.Abstractions;
+
+using PrivaPub.Models.User;
+using PrivaPub.StaticServices;
+
+namespace PrivaPub.Services
+{
+	public interface IRootSessions
+	{
+		Task Revoke(string rootId, CancellationToken token);
+	}
+
+	// Ends everything a root is signed in with: its /clientapi tokens, through a new SessionStamp (checked by JwtEvents),
+	// and the Mastodon API tokens and authorizations of each of its personas. Used when its password is recovered and when
+	// it is deleted.
+	public class RootSessions : IRootSessions
+	{
+		readonly DbEntities _dbEntities;
+		readonly IOpenIddictTokenManager _tokens;
+		readonly IOpenIddictAuthorizationManager _authorizations;
+
+		public RootSessions(DbEntities dbEntities, IOpenIddictTokenManager tokens, IOpenIddictAuthorizationManager authorizations)
+		{
+			_dbEntities = dbEntities;
+			_tokens = tokens;
+			_authorizations = authorizations;
+		}
+
+		public async Task Revoke(string rootId, CancellationToken token)
+		{
+			await DB.Default.Update<RootUser>().MatchID(rootId)
+				.Modify(u => u.CredentialsChangedAt, DateTime.UtcNow)
+				.Modify(u => u.SessionStamp, Guid.NewGuid().ToString("N"))
+				.ExecuteAsync(token);
+			foreach (var link in await _dbEntities.RootToAvatars.Match(ra => ra.RootId == rootId).ExecuteAsync(token))
+			{
+				await _tokens.RevokeBySubjectAsync(link.AvatarId, token);
+				await _authorizations.RevokeBySubjectAsync(link.AvatarId, token);
+			}
+		}
+	}
+}
@@ -14,9 +14,12 @@ using PrivaPub.ClientModels.User;
 using PrivaPub.Models;
 using PrivaPub.Models.User;
 using PrivaPub.Resources;
+using PrivaPub.Infrastructure.Jobs;
+using PrivaPub.Models.Jobs;
 using PrivaPub.StaticServices;

 using System.Globalization;
+using System.Text.Json;

 #pragma warning disable 8603
 #pragma warning disable 8625
@@ -31,8 +34,14 @@ namespace PrivaPub.Services
 		readonly ILogger<RootUsersService> Logger;
 		readonly AppConfigurationService AppConfigurationService;
 		readonly AuthTokenManager AuthTokenManager;
+		readonly IJobQueue Jobs;
+		readonly IRootSessions Sessions;
+		readonly IRootRemoval Removal;

 		public RootUsersService(
+			IJobQueue jobs,
+			IRootSessions sessions,
+			IRootRemoval removal,
 			IStringLocalizer<GenericRes> localizer,
 			ILogger<RootUsersService> logger,
 			IPasswordHasher passwordHasher,
@@ -40,6 +49,9 @@ namespace PrivaPub.Services
 			AppConfigurationService appConfigurationService,
 			AuthTokenManager authTokenManager)
 		{
+			Jobs = jobs;
+			Sessions = sessions;
+			Removal = removal;
 			DbEntities = dbEntities;
 			AuthTokenManager = authTokenManager;
 			PasswordHasher = passwordHasher;
@@ -48,6 +60,12 @@ namespace PrivaPub.Services
 			AppConfigurationService = appConfigurationService;
 		}

+		public const string NoMatch = "That username and password do not match.";
+		static string _decoy;
+
+		// a hash nobody's password matches, so an unknown login costs the same hashing as a wrong password
+		string Decoy => _decoy ??= PasswordHasher.Hash(Convert.ToHexString(System.Security.Cryptography.RandomNumberGenerator.GetBytes(16)));
+
 		public async Task<WebResult> SignUpAsync(LoginForm signUpForm, string invitationCode = default,
 			bool isPasswordRequired = false)
 		{
@@ -114,20 +132,16 @@ namespace PrivaPub.Services
 			var result = new WebResult();
 			try
 			{
+				// One answer, after the same work, whether the login is unknown, deleted or the password wrong: sign-in must not
+				// tell anyone which logins exist. Only someone who knows the password learns the login is banned.
 				loginForm.UserName = loginForm.UserName.ToLower();
-				if (!await DbEntities.RootUsers.Match(u => u.UserName == loginForm.UserName && u.DeletedAt == null)
-							.ExecuteAnyAsync())
-					return result.Invalidate(Localizer["Username '{0}' not found.", loginForm.UserName]);
-
-				var user = await DbEntities.RootUsers.Match(u => u.UserName == loginForm.UserName).ExecuteFirstAsync();
+				var user = await DbEntities.RootUsers.Match(u => u.UserName == loginForm.UserName && u.DeletedAt == null).ExecuteFirstAsync();
+				var (verified, needsUpgrade) = PasswordHasher.Check(user?.HashedPassword ?? Decoy, loginForm.Password);
+				if (user?.HashedPassword == default || !verified)
+					return result.Invalidate(Localizer[NoMatch]);
 				if (user.IsBanned)
 					return result.Invalidate(Localizer["User '{0}' banned.", user.UserName]);

-				var (verified, needsUpgrade) = PasswordHasher.Check(user.HashedPassword, loginForm.Password);
-
-				if (!verified)
-					return result.Invalidate(Localizer["Wrong password."]);
-
 				if (needsUpgrade)
 					result.ErrorMessage = Localizer["Needs upgrade!"];

@@ -261,24 +275,12 @@ namespace PrivaPub.Services
 			var result = new WebResult();
 			try
 			{
-				var users = await DbEntities.RootUsers.Match(u => usersIds.UserIdList.Contains(u.ID) && u.DeletedAt == default).ExecuteAsync();
-				if (users == null || users.Count == 0)
+				var removed = 0;
+				foreach (var id in usersIds.UserIdList.Distinct())
+					if (await Removal.Remove(id, CancellationToken.None))
+						removed++;
+				if (removed == 0)
 					return result.Invalidate(Localizer["User already deleted."]);
-
-				foreach (var user in users)
-				{
-					user.Email = Localizer["Deleted user"];
-					user.HashedPassword = null;
-					user.Policies.Clear();
-					user.IsBanned = false;
-					user.IsEmailValidated = false;
-					//user.TempSecret = null;
-					user.UserName = Localizer["Deleted user"];
-					user.DeletedAt = DateTime.UtcNow;
-
-					await DB.Default.SaveAsync(user);
-				}
-
 				return result;
 			}
 			catch (Exception ex)
@@ -288,6 +290,26 @@ namespace PrivaPub.Services
 			}
 		}

+		// A root deletes itself only with its password, so a stolen session cannot.
+		public async Task<WebResult> RemoveSelfAsync(string rootId, string password)
+		{
+			var result = new WebResult();
+			try
+			{
+				var user = await DbEntities.RootUsers.MatchID(rootId).Match(u => u.DeletedAt == null).ExecuteFirstAsync();
+				var (verified, _) = PasswordHasher.Check(user?.HashedPassword ?? Decoy, password ?? string.Empty);
+				if (user?.HashedPassword == default || !verified)
+					return result.Invalidate(Localizer[NoMatch], StatusCodes.Status403Forbidden);
+				await Removal.Remove(user.ID, CancellationToken.None);
+				return result;
+			}
+			catch (Exception ex)
+			{
+				Logger.LogError(ex, $"{nameof(RootUsersService)}.{nameof(RemoveSelfAsync)}()");
+				return result.Invalidate(Localizer["Something went wrong."], exception: ex);
+			}
+		}
+
 		public async Task<WebResult> BanUserAsync(UsersIds usersIds)
 		{
 			var result = new WebResult();
@@ -354,141 +376,22 @@ namespace PrivaPub.Services
 			}
 		}

+		public const string RecoverySent = "If that account has an email address, a recovery link is on its way. It works for one hour.";
+
+		// The same answer, after the same work, whether the account exists, has an email or can be written to: recovery must
+		// not tell anyone which logins or addresses exist. RecoveryJob does the rest, out of the request.
 		public async Task<WebResult> SetupAndSendRecoveryEmail(PasswordRecoveryForm passwordRecoveryForm, string host)
 		{
 			var result = new WebResult();
 			try
 			{
-				var usernameExists = false;
-				if (passwordRecoveryForm.IsEmailDisabled)
-				{
-					if (!await DbEntities.RootUsers.Match(u => u.UserName == passwordRecoveryForm.UserName && u.DeletedAt == null)
-								.ExecuteAnyAsync())
-						return result.Invalidate(Localizer["Username '{0}' not found.", passwordRecoveryForm.UserName],
-							StatusCodes.Status404NotFound);
-					usernameExists = true;
-				}
-				else
-				{
-					if (!await DbEntities.RootUsers.Match(u => u.Email == passwordRecoveryForm.Email && u.DeletedAt == null)
-								.ExecuteAnyAsync())
-						return result.Invalidate(Localizer["Username '{0}' not found.", passwordRecoveryForm.UserName],
-							StatusCodes.Status404NotFound);
-				}
-
-				var user = default(RootUser);
-				if (usernameExists)
-					user = await DbEntities.RootUsers.Match(u => u.UserName == passwordRecoveryForm.UserName).ExecuteFirstAsync();
-				else
-					user = await DbEntities.RootUsers.Match(u => u.Email == passwordRecoveryForm.Email).ExecuteFirstAsync();
-
-				if (string.IsNullOrEmpty(user.Email))
-					return result.Invalidate(Localizer["This User doesn't have an email, no way to recover."],
-						StatusCodes.Status423Locked);
-
-				var emailRecovery = await DbEntities.EmailRecoveries
-					.Match(er => er.RootUserId == user.ID).ExecuteFirstAsync();
-
-				if (emailRecovery is null)
-				{
-					emailRecovery = new()
-					{
-						RootUserId = user.ID
-					};
-					await DB.Default.SaveAsync(emailRecovery);
-				}
-
-				using var recoveryCodeGenerator = new Password(true, true, true, false, 127);
-				emailRecovery.RecoveryCode = recoveryCodeGenerator.Next();
-				await DB.Default.SaveAsync(emailRecovery);
-
-				using (var smtpClient = new SmtpClient())
-				{
-					try
-					{
-						await smtpClient.ConnectAsync(AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpServer, AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpPort,
-							AppConfigurationService.AppConfiguration.EmailConfiguration.UseSSL);
-						if (!smtpClient.IsConnected)
-						{
-							Logger.LogError($"Failed to connect to the SMTP server({AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpServer}).");
-							return result.Invalidate(Localizer["Failed to send email."], StatusCodes.Status503ServiceUnavailable);
-						}
-					}
-					catch (Exception ex)
-					{
-						Logger.LogError(ex, $"Error at connection to the SMTP server({AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpServer}).");
-						return result.Invalidate(Localizer["Failed to send email."], StatusCodes.Status503ServiceUnavailable, exception: ex);
-					}
-
-					try
-					{
-						await smtpClient.AuthenticateAsync(AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpUsername, AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpPassword);
-						if (!smtpClient.IsAuthenticated)
-						{
-							Logger.LogError($"Failed SMTP authentication of {AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpUsername}.");
-							return result.Invalidate(Localizer["Failed to send email."],
-								StatusCodes.Status503ServiceUnavailable);
-						}
-					}
-					catch (Exception ex)
-					{
-						Logger.LogError(ex, $"Failed SMTP authentication of {AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpUsername}.");
-						return result.Invalidate(Localizer["Failed to send email."],
-							StatusCodes.Status503ServiceUnavailable, exception: ex);
-					}
-
-					try
-					{
-						var toParsed = await smtpClient.VerifyAsync(user.Email);
-						if (toParsed == null)
-							return result.Invalidate(Localizer["Invalid email."], StatusCodes.Status400BadRequest);
-					}
-					catch (OperationCanceledException ex)
-					{
-						Logger.LogWarning(
-							"SMTP operation canceled at email verification: {Error}", ex.Message);
-					}
-					catch (SmtpCommandException ex)
-					{
-						Logger.LogWarning(
-							"SMTP command exception at email verification: {Error}", ex.Message);
-					}
-					catch (SmtpProtocolException ex)
-					{
-						Logger.LogWarning(
-							"SMTP protocol exception at email verification: {Error}", ex.Message);
-					}
-					catch (Exception ex)
-					{
-						Logger.LogWarning("Exception at email verification: {Error}", ex.Message);
-					}
-
-					var message = new MimeMessage();
-					message.From.Add(new MailboxAddress("PrivaPub", AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpUsername));
-					message.To.Add(MailboxAddress.Parse(user.Email));
-					message.Subject = Localizer["PrivaPub - Password recovery link"];
-					message.Body = new TextPart("plain")
-					{
-						Text = string.Format(Localizer[@"Hey {0},
-
-Eugene from collAnon, following is the password recovery link:
-{1}
-
-- Eugene"], user.UserName, $"{host}/password-recovery?rc={emailRecovery.RecoveryCode}")
-					};
-					try
-					{
-						await smtpClient.SendAsync(message);
-					}
-					catch (Exception ex)
-					{
-						Logger.LogError(ex, $"Error at email sending to {user.Email} from {AppConfigurationService.AppConfiguration.EmailConfiguration.SmtpUsername}.");
-						return result.Invalidate(Localizer["Failed to send email."], StatusCodes.Status503ServiceUnavailable, exception: ex);
-					}
-
-					await smtpClient.DisconnectAsync(quit: true);
-				}
-
+				var userName = passwordRecoveryForm.UserName?.ToLowerInvariant();
+				var user = passwordRecoveryForm.IsEmailDisabled
+					? await DbEntities.RootUsers.Match(u => u.UserName == userName && u.DeletedAt == null).ExecuteFirstAsync()
+					: await DbEntities.RootUsers.Match(u => u.Email == passwordRecoveryForm.Email && u.DeletedAt == null).ExecuteFirstAsync();
+				await Jobs.Enqueue(JobKind.SendRecovery, JsonSerializer.Serialize(new RecoveryPayload(user?.ID, host)), RecoveryJob.Host,
+					dedupeKey: default, CancellationToken.None);
+				result.Data = Localizer[RecoverySent].Value;
 				return result;
 			}
 			catch (Exception ex)
@@ -498,16 +401,19 @@ Eugene from collAnon, following is the password recovery link:
 			}
 		}

+		Task<EmailRecovery> LiveRecovery(string recoveryCode)
+		{
+			var hash = RecoveryJob.Hash(recoveryCode);
+			var now = DateTime.UtcNow;
+			return DbEntities.EmailRecoveries.Match(er => er.CodeHash == hash && er.ExpiresAt > now).ExecuteFirstAsync();
+		}
+
 		public async Task<WebResult> IsValidRecoveryCode(string recoveryCode)
 		{
 			var result = new WebResult();
 			try
 			{
-				var isValidRecoveryCode = await DbEntities.EmailRecoveries
-					.Match(er => er.RecoveryCode == recoveryCode).ExecuteAnyAsync();
-
-				result.Data = isValidRecoveryCode;
-
+				result.Data = await LiveRecovery(recoveryCode) != default;
 				return result;
 			}
 			catch (Exception ex)
@@ -516,33 +422,24 @@ Eugene from collAnon, following is the password recovery link:
 			}
 		}

+		// A recovered password ends every session the root had: whoever had them may be why it was recovered.
 		public async Task<WebResult> ChangePassword(NewPasswordForm newPasswordForm)
 		{
 			var result = new WebResult();
 			try
 			{
-				var isValidRecoveryCode = await DbEntities.EmailRecoveries
-					.Match(er => er.RecoveryCode == newPasswordForm.RecoveryCode).ExecuteAnyAsync();
-				if (!isValidRecoveryCode)
+				var recovery = await LiveRecovery(newPasswordForm.RecoveryCode);
+				var user = recovery == default ? default
+					: await DbEntities.RootUsers.MatchID(recovery.RootUserId).Match(u => u.DeletedAt == null && !u.IsBanned).ExecuteFirstAsync();
+				if (user == default)
 					return result.Invalidate(Localizer["Invalid recovery code."], StatusCodes.Status404NotFound);

-				var emailRecovery = await DbEntities.EmailRecoveries
-					.Match(er => er.RecoveryCode == newPasswordForm.RecoveryCode)
-					.Project(er => er.Include(nameof(EmailRecovery.RootUserId)))
-					.ExecuteFirstAsync();
-
-				if (emailRecovery is null || emailRecovery.RootUserId is null)
-					return result.Invalidate(Localizer["User not found."]);
-
-				var newHashedPassword = PasswordHasher.Hash(newPasswordForm.NewPassword);
-
-				_ = await DB.Default.Update<RootUser>()
-					.Match(u => u.ID == emailRecovery.RootUserId && u.DeletedAt == null)
-					.Modify(u => u.HashedPassword, newHashedPassword)
+				await DB.Default.Update<RootUser>().MatchID(user.ID)
+					.Modify(u => u.HashedPassword, PasswordHasher.Hash(newPasswordForm.NewPassword))
+					.Modify(u => u.UpdatedAt, DateTime.UtcNow)
 					.ExecuteAsync();
-
-				_ = await DB.Default.DeleteAsync<EmailRecovery>(er => er.RecoveryCode == newPasswordForm.RecoveryCode);
-
+				await DB.Default.DeleteAsync<EmailRecovery>(er => er.RootUserId == user.ID);
+				await Sessions.Revoke(user.ID, CancellationToken.None);
 				return result;
 			}
 			catch (Exception ex)
@@ -12,6 +12,9 @@ namespace PrivaPub.StaticServices
 {
 	public class AuthTokenManager
 	{
+		public const string SessionStamp = "ss";
+		const string SessionStampClaim = SessionStamp;//the root's RootUser.SessionStamp when issued; JwtEvents refuses a stale one
+
 		readonly IConfiguration Configuration;

 		public AuthTokenManager(IConfiguration configuration)
@@ -35,7 +38,8 @@ namespace PrivaPub.StaticServices
 			var claims = new List<Claim>
 			{
 				new(ClaimTypes.UserData, user.ID),
-				new(ClaimTypes.Name, user.UserName)
+				new(ClaimTypes.Name, user.UserName),
+				new(SessionStampClaim, user.SessionStamp ?? string.Empty)
 			};

 			claims.Add(new(Policies.IsUser, $"{user.Policies.Contains(Policies.IsUser)}".ToLower()));
@@ -44,6 +48,7 @@ namespace PrivaPub.StaticServices

 			var token = new JwtSecurityToken(issuer: Configuration["AppConfiguration:Jwt:Issuer"], audience: Configuration["AppConfiguration:Jwt:Audience"],
 					claims: claims,
+					notBefore: DateTime.UtcNow,
 					expires: expiration,
 					signingCredentials: new(securityKey, SecurityAlgorithms.HmacSha512)
 			);
@@ -31,7 +31,7 @@ namespace PrivaPub.StaticServices
 			using (var algorithm = new Rfc2898DeriveBytes(password, salt, iterations, HashAlgorithmName.SHA512))
 			{
 				var keyToCheck = algorithm.GetBytes(KeySize);
-				var verified = keyToCheck.SequenceEqual(key);
+				var verified = CryptographicOperations.FixedTimeEquals(keyToCheck, key);
 				return (verified, needsUpgrade);
 			}
 		}
@@ -92,6 +92,49 @@ namespace PrivaPub.Web.Pages
 		}
 	}

+	// The hashtag links our posts carry (/tags/{tag}): this server's public posts with that tag, as a page like a profile's.
+	public class TagModel : PublicPageModel
+	{
+		const int PageSize = 20;
+
+		readonly ILocalActorService _localActors;
+		readonly DbEntities _dbEntities;
+
+		public TagModel(ILocalActorService localActors, DbEntities dbEntities)
+		{
+			_localActors = localActors;
+			_dbEntities = dbEntities;
+		}
+
+		public string Tag { get; private set; }
+		public IReadOnlyList<PostView> Posts { get; private set; } = Array.Empty<PostView>();
+
+		public async Task<IActionResult> OnGetAsync(string tag, CancellationToken token)
+		{
+			Tag = tag?.TrimStart('#').ToLowerInvariant();
+			if (string.IsNullOrEmpty(Tag) || Tag.Length > 100)
+				return NotFound();
+			Harden();
+			var posts = await _dbEntities.Posts
+				.Match(p => p.Tags.Contains(Tag) && !p.IsFederatedCopy && p.ReblogOfPostId == null && p.Visibility == PostVisibility.Public)
+				.Match(VisibilityPolicy.IsPublic)
+				.Sort(p => p.ID, Order.Descending)
+				.Limit(PageSize)
+				.ExecuteAsync(token);
+			var authors = new Dictionary<string, LocalActor>();
+			var views = new List<PostView>();
+			foreach (var post in posts)
+			{
+				if (!authors.TryGetValue(post.GroupUserId, out var author))
+					authors[post.GroupUserId] = author = await _localActors.FindById(LocalActorKind.Person, post.GroupUserId, token);
+				if (author is { IsFederated: true })
+					views.Add(PostView.From(post, author));
+			}
+			Posts = views;
+			return Page();
+		}
+	}
+
 	public class StatusModel : PublicPageModel
 	{
 		readonly ILocalActorService _localActors;
@@ -0,0 +1,17 @@
+@page "/tags/{tag}"
+@model PrivaPub.Web.Pages.TagModel
+@{
+	ViewData["Title"] = $"#{Model.Tag}";
+}
+<header>
+	<h1>#@Model.Tag</h1>
+	<div class="meta">Public posts on this server with this tag.</div>
+</header>
+@foreach (var post in Model.Posts)
+{
+	<partial name="_Post" model="post" />
+}
+@if (Model.Posts.Count == 0)
+{
+	<p class="meta">Nothing public with this tag yet.</p>
+}
@@ -5,6 +5,9 @@
 	"Registrations": {
 		"Mode": "Invitations"
 	},
+	"Federation": {
+		"SecureMode": true
+	},
 	"Statistics": {
 		"Crawler": {
 			"Enabled": true,
@@ -169,15 +169,19 @@ Priorities, used throughout:
 Findings:
 - **Mastodon 4.7 names its actors by number**: `https://mastodon.test/ap/users/<id>`, inbox `…/ap/users/<id>/inbox`. Nothing here may assume
  `/users/<name>`.
- **It drops circle posts** (expected failure in the scenario).
+- **It dropped circle posts** until each member's copy named that member (owner decision 2026-10-04, v1.19.0).
  - A post addressed only to `[circle, circle/flock]` parses as `direct` there, and Mastodon keeps a `direct` post
    only if it names a local account or arrived in a known account's inbox (`Create#addresses_local_accounts?`).
  - But `ActivityPub::InboxesController#account_required?` looks only at `params[:account_username]`. A delivery to
    the numeric `/ap/users/:account_id/inbox` it now advertises therefore reaches the worker with no recipient and
    is rejected.
  - DMs are unaffected because they name the recipient.
-  - Fixing it on our side means naming the member (or that server's members) in each copy's `cc`, which changes what a
-    circle reveals: **owner decision pending**. Reporting it upstream is the other half.
+  - Each member's copy now names that member in `cc` and mentions them silently, so Mastodon keeps it, and its signed
+    refetch (`ActivityPub::FetchRemoteStatusService`, by its instance actor) gets the post back naming the members on
+    that server. The same holds for a followers-only post's refetch, which used to answer 404, and a 404 on refetch
+    makes Mastodon delete its copy. Reporting the numeric-inbox recipient loss upstream is still worth doing.
+- **With SecureMode on** (all six peers, 2026-10-04) every federation check passes: Mastodon, GoToSocial, Misskey,
+  Sharkey, Akkoma and Lemmy all sign their fetches, and fetch our instance actor's key unsigned first.
 - Inbound `Block` from Mastodon is not enforced yet (P7).

 ### GoToSocial: 0.22.1 (2026-07-20)
@@ -233,7 +237,10 @@ Findings:

 **Pasture evidence (2026-10-03, GoToSocial 0.22.1, `tools/pasture/scenarios/gts.sh`):** 37 checks pass, three runs in a
 row. That is the original 33 plus four on statistics: described as gotosocial, inbound and outbound traffic counted,
-no account named.
+no account named. Since 2026-10-04 (v1.19.0) circle posts reach a GoToSocial member too. GoToSocial files a post for
+neither the public nor the author's followers as a direct message, like our DMs, and shows it only to the accounts it
+mentions. Being in `cc` stored it but left it invisible, so each member's copy also mentions that member silently.
+Such posts are then found in the member's conversations, never by a search on their URI.

 ### Misskey family: Misskey 2026.10.0, Sharkey 2025.4.7, Iceshrimp.NET 2026.1.2-beta, CherryPick 4.17

@@ -31,9 +31,25 @@ Written 2026-10-01 from the original 2023 code, the decePubClient UI, a federati

  Both open items were closed without a root step (owner decisions, 2026-10-04): the server fetches its geolocation
  databases itself, and the deploy makes and signs in as @thepra.
- [ ] Everything on in production (owner decisions 2026-10-04): v1.18.0 self-updating geolocation, @thepra, the crawler
-  on, sign-up by invitation, one registrations switch; then signed audiences with circles for everyone and SecureMode on,
-  account privacy, and one answer everywhere (the mismatch sweep).
+- [ ] Everything on in production (owner decisions 2026-10-04):
+  - v1.18.0, deployed and verified 2026-10-04: geolocation that updates itself (DB-IP Lite 2026-10 loaded), the deploy
+    signing in as @thepra (undiscoverable), the crawler on (1010 servers known within the hour), sign-up by invitation
+    with one registrations switch;
+  - v1.19.1, deployed and verified 2026-10-04 (v1.19.0's deploy stopped at a flaky test, fixed in v1.19.1):
+    - circle posts reach Mastodon and GoToSocial members, each copy naming and mentioning its member;
+    - followers-only, direct and circle posts are served to signed refetches from those they were for;
+    - SecureMode is on: a persona answers 401 unsigned, a browser is redirected, and all six pasture peers pass;
+    - account privacy: sign-in and recovery say nothing, recovery codes are hashed for an hour, a recovered password
+      ends every session, and a deleted root's personas and groups are deleted everywhere;
+  - v1.20.0, 2026-10-04: one answer everywhere:
+    - one counting rule for posts and users;
+    - gone accounts out of every count;
+    - replies_count only for public replies;
+    - search anyone may use;
+    - the instance API advertising what is enforced;
+    - Mastodon routes that answer, grouped notifications;
+    - community announce ids that resolve, a hashtag page;
+    - remote accounts' real counts.
 - [ ] P7 Threads, communities, moderation, the social graph
 - [ ] P8 Signatures, discovery, the long tail

@@ -498,7 +514,10 @@ it, raw where it doesn't.
  so Mastodon 4.7 retries instead of switching to RFC 9421.
 - **Deliberately not done: dereferenceable `Follow`, `Like`, `Block`, `Accept`, `Reject` and `Undo` ids.** Serving them
  would publish who follows, likes and blocks whom, which our collections deliberately hide. Every one of them is sent
-  with its object embedded, which is all Misskey needs. `Create` and `Announce` ids do dereference.
+  with its object embedded, which is all Misskey needs. `Create` and `Announce` ids do dereference, a community's
+  announces included (kept since 2026-10-04 while the post is shown, 410 after). Update, Delete, EmojiReact,
+  QuoteRequest and its answers, Flag, Ignore and poll votes do not either: like Mastodon's, they are sent whole and
+  never fetched.

 #### P6 What people see: emoji, polls, quotes, reactions, cards, players
 - **Custom emoji** on posts, names, fields and poll options, proxied (done in v1.10.0), together with fuller remote
@@ -15,6 +15,13 @@ site() { curl -k --resolve "$1:6443:127.0.0.1" "${@:2}"; }
 pfetch() { curl -sk --connect-to privapub.test:443:127.0.0.1:6443 "$@"; }

 # make_png <path>: an 8x8 red PNG, for uploads
+# the status an unsigned ActivityPub GET of a PrivaPub document gets
+pstatus() { pfetch -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$1"; }
+# SecureMode (PRIVAPUB_ENV="Federation__SecureMode=true") answers every unsigned GET but the instance actor's 401, so a
+# post's author answering 401 means it is on; then 401 is what "not served" and "gone" look like to an unsigned reader
+secure_mode() { [ "$(pstatus "${1%%/scribbles/*}")" = "401" ]; }
+unserved() { local code; code=$(pstatus "$1"); if secure_mode "$1"; then [ "$code" = 401 ]; else [ "$code" = 404 ]; fi; }
+gone_unsigned() { local code; code=$(pstatus "$1"); if secure_mode "$1"; then [ "$code" = 401 ]; else [ "$code" = 410 ]; fi; }
 make_png() { python3 -c "
 import struct,zlib
 w=h=8
@@ -57,7 +57,8 @@ until_true 30 '[ "$(acurl -H "$KH" "$AK/api/v1/statuses/$a_post_id/context" | j
 echo "  likes, boosts and reactions"
 curl -s -o /dev/null -X POST -H "$PH" "$P/api/v1/statuses/$a_post_on_p/favourite"
 curl -s -o /dev/null -X POST -H "$PH" "$P/api/v1/statuses/$a_post_on_p/reblog"
-until_true 30 '[ "$(acurl -H "$KH" "$AK/api/v1/statuses/$a_post_id" | j "print(d[\"favourites_count\"], d[\"reblogs_count\"])")" = "1 1" ]' && ok "alice_akkoma's like and boost count on Akkoma" || ko "like or boost not counted on Akkoma"
+# Akkoma counts them from its own job queue, which can lag behind under the load of a six-peer run: two minutes
+until_true 60 '[ "$(acurl -H "$KH" "$AK/api/v1/statuses/$a_post_id" | j "print(d[\"favourites_count\"], d[\"reblogs_count\"])")" = "1 1" ]' && ok "alice_akkoma's like and boost count on Akkoma" || ko "like or boost not counted on Akkoma"
 curl -s -o /dev/null -X POST -H "$PH" "$P/api/v1/statuses/$a_post_on_p/unfavourite"
 curl -s -o /dev/null -X POST -H "$PH" "$P/api/v1/statuses/$a_post_on_p/unreblog"
 until_true 30 '[ "$(acurl -H "$KH" "$AK/api/v1/statuses/$a_post_id" | j "print(d[\"favourites_count\"], d[\"reblogs_count\"])")" = "0 0" ]' && ok "alice_akkoma's unlike and unboost reach Akkoma" || ko "undo of like or boost not applied on Akkoma"
@@ -165,12 +165,12 @@ until_true 20 '[ "$(gcurl -s -H "$GH" "$G/api/v1/accounts/relationships?id[]=$ci
 curl -s -o /dev/null -X POST $P/clientapi/post/insert -H 'Content-Type: application/json' -H "Authorization: Bearer $jwt" \
 	-d "{\"avatarId\":\"$alice_id\",\"text\":\"only the circle on GoToSocial sees this\",\"groupId\":\"$circle\"}"
 circle_uri=$(podman exec pasture-mongo mongosh --quiet PrivaPub --eval 'print(db.Post.findOne({Text:/only the circle on GoToSocial/}).ObjectURI)')
-if until_true 15 '[ "$(on_gts "$circle_uri" | j "print(len(d[\"statuses\"]))")" = "1" ]'; then
-	ok "a circle post reaches its GoToSocial member"
-else
-	xf "a circle post reaches its GoToSocial member (GoToSocial keeps no post addressed only to a collection it does not know)"
-fi
-[ "$(pfetch -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$circle_uri")" = "404" ] && ok "the circle post is not served unsigned" || ko "circle post served unsigned"
+# GoToSocial files a post for neither the public nor the author's followers as a direct message (as it does our DMs),
+# shown only to the accounts it mentions; so each member's copy names and silently mentions that member. Like a DM it
+# is then in gtsuser's conversations, never in a search by URI.
+until_true 15 'gcurl -s -H "$GH" "$G/api/v1/conversations" | grep -q "only the circle on GoToSocial sees this"' \
+	&& ok "a circle post, naming its member, reaches its GoToSocial member" || ko "circle post missing on GoToSocial" 
+unserved "$circle_uri" && ok "the circle post is not served unsigned" || ko "circle post served unsigned"

 echo "locked personas"
 LT=$(privapub_token locked_alice); LH="Authorization: Bearer $LT"
@@ -39,7 +39,10 @@ cw_uri=$(curl -s -X POST -H "$AH" $P/api/v1/statuses -d 'status=behind a warning
 until_true 30 '[ "$(m_status_by_uri "$alice_on_m" "$cw_uri" | j "print(d and d[\"spoiler_text\"]==\"spoilers\" and d[\"sensitive\"])")" = "True" ]' && ok "a content warning survives to Mastodon" || ko "content warning lost on Mastodon"
 fo_uri=$(curl -s -X POST -H "$AH" $P/api/v1/statuses -d 'status=only for followers&visibility=private' | j "print(d['uri'])")
 until_true 30 '[ "$(m_status_by_uri "$alice_on_m" "$fo_uri" | j "print(d and d[\"visibility\"])")" = "private" ]' && ok "a followers-only post reaches Mastodon as private" || ko "followers-only post missing or widened on Mastodon"
-[ "$(pfetch -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$fo_uri")" = "404" ] && ok "the followers-only post is not served unsigned" || ko "followers-only post served unsigned"
+unserved "$fo_uri" && ok "the followers-only post is not served unsigned" || ko "followers-only post served unsigned"
+# Mastodon deletes its copy when a refetch answers 404, so a signed refetch from a follower's server is answered
+fo_refetch=$(podman exec pasture-mastodon bin/rails runner "s = ActivityPub::FetchRemoteStatusService.new.call('$fo_uri'); puts(s.present? ? s.visibility : 'lost')" 2>/dev/null | tail -1)
+[ "$fo_refetch" = "private" ] && ok "Mastodon's signed refetch of the followers-only post keeps it private" || ko "Mastodon's refetch of the followers-only post: $fo_refetch"

 echo "  replies"
 mcurl -o /dev/null -X POST -H "$MH" "$M/api/v1/statuses" -d "status=@alice_masto@privapub.test replying from Mastodon&in_reply_to_id=$a_post_on_m&visibility=public"
@@ -112,7 +115,7 @@ cw_on_m=$(m_status_by_uri "$alice_on_m" "$cw_uri" | j "print(d['id'])")
 cw_id=$(curl -s -H "$AH" "$P/api/v1/accounts/$a_poll_id/statuses" | j "print(next(s['id'] for s in d if s['uri']=='$cw_uri'))")
 curl -s -o /dev/null -X DELETE -H "$AH" "$P/api/v1/statuses/$cw_id"
 until_true 30 '[ "$(mcurl -o /dev/null -w "%{http_code}" -H "$MH" "$M/api/v1/statuses/$cw_on_m")" = "404" ]' && ok "alice_masto's delete reaches Mastodon" || ko "delete not applied on Mastodon"
-[ "$(pfetch -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$cw_uri")" = "410" ] && ok "the deleted post answers 410" || ko "deleted post does not answer 410"
+gone_unsigned "$cw_uri" && ok "the deleted post answers 410" || ko "deleted post does not answer 410"
 mcurl -o /dev/null -X DELETE -H "$MH" "$M/api/v1/statuses/$m_poll"
 until_true 30 '! curl -s -H "$AH" "$P/api/v1/timelines/home" | grep -q "Mastodon asks"' && ok "mastouser's delete reaches PrivaPub" || ko "Mastodon's delete not applied on PrivaPub"

@@ -144,20 +147,19 @@ circle_post=$(curl -s -X POST $P/clientapi/post/insert -H 'Content-Type: applica
 	-d "{\"avatarId\":\"$alice_id\",\"text\":\"only the circle sees this\",\"groupId\":\"$circle\"}")
 circle_uri=$(podman exec pasture-mongo mongosh --quiet PrivaPub --eval 'print(db.Post.findOne({Text:/only the circle sees this/},{ObjectURI:1}).ObjectURI)')
 # Mastodon 4.7 learns whose personal inbox a delivery reached only from /users/<name>/inbox, never from the numeric
-# /ap/users/<id>/inbox it now advertises, and keeps a post naming no local account only for that recipient
-# (InboxesController#account_required?, Create#addresses_local_accounts?). A circle post names only the circle.
+# /ap/users/<id>/inbox it now advertises, and keeps a post naming no local account of its own only for that recipient
+# (InboxesController#account_required?, Create#addresses_local_accounts?). So each member's copy names that member.
 m_stored() { podman exec pasture-mastodon bin/rails runner "puts Status.exists?(uri: '$1')" 2>/dev/null | tail -1; }
-if until_true 15 '[ "$(m_stored "$circle_uri")" = "true" ]'; then
-	ok "a circle post reaches its Mastodon member"
-else
-	xf "a circle post reaches its Mastodon member (Mastodon 4.7 loses the recipient of numeric-inbox deliveries; owner decision pending)"
-fi
+until_true 15 '[ "$(m_stored "$circle_uri")" = "true" ]' && ok "a circle post, naming its member, reaches its Mastodon member" || ko "circle post missing on Mastodon"
+# a signed refetch, as Mastodon does it, is answered for a member's server and names the member, so the copy stays
+refetched=$(podman exec pasture-mastodon bin/rails runner "s = ActivityPub::FetchRemoteStatusService.new.call('$circle_uri'); puts(s.present? ? 'kept' : 'lost')" 2>/dev/null | tail -1)
+[ "$refetched" = "kept" ] && ok "Mastodon's signed refetch of the circle post keeps it" || ko "Mastodon's refetch of the circle post failed ($refetched)" 
 mastodon_user outsider
 OT=$(mastodon_token outsider)
 alice_on_m_o=$(mcurl -H "Authorization: Bearer $OT" "$M/api/v2/search?q=@alice_masto@privapub.test&resolve=true&type=accounts" | j "print(d['accounts'][0]['id'])")
 [ "$(mcurl -H "Authorization: Bearer $OT" "$M/api/v1/accounts/$alice_on_m_o/statuses?limit=40" | j "print(any(s['uri']=='$circle_uri' for s in d))")" = "False" ] \
 	&& ok "another Mastodon user does not see the circle post" || ko "the circle post leaked to a non-member"
-[ "$(pfetch -o /dev/null -w '%{http_code}' -H 'Accept: application/activity+json' "$circle_uri")" = "404" ] && ok "the circle post is not served unsigned" || ko "circle post served unsigned"
+unserved "$circle_uri" && ok "the circle post is not served unsigned" || ko "circle post served unsigned"

 echo "  reports"
 curl -s -o /dev/null -X POST -H "$AH" "$P/api/v1/reports" -d "account_id=$masto_on_p&comment=pasture-report-$circle_name&forward=true"
Author	SHA1	Message	Date
thepraandClaude Opus 5.5	ad8d353f9a	docs: FEDERATION.md tested against six peers with signed fetches, the shipped FEPs; v1.19.1 and v1.20.0 in ROADMAP Build / Build (push) Successful in 5m14s Details Deploy / privapub.thepra.dev (push) Successful in 5m25s Details - FEDERATION.md: - It said only GoToSocial was tested live. It now lists all six pasture peers, run with signed fetches required as production runs, and what is checked both ways. - FEP-044f, FEP-9967, FEP-c0e0 and FEP-5feb moved from planned to supported. - indexable and discoverable are described as the settings they are. - ROADMAP: v1.19.1 deployed and verified, v1.20.0 (phase 4). - Pasture, Akkoma: its like and boost count gets two minutes. In the final clean pass, all six peers with SecureMode on gave 245 passed, 1 failed, 4 expected. The failure was this count, which Akkoma's job queue was slow to update under the load of six peers; two reruns gave 44/44. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 04:16:16 +02:00
thepraandClaude Opus 5.5	e2f61ede56	Everything on, phase 4b: ids that resolve, a hashtag page, grouped notifications, remote accounts' real counts - A community's announces resolve, as FEDERATION.md and ROADMAP always said Announce ids do. GroupDistributor keeps each one it sends (GroupAnnouncement, unique by id). /grunts serves it while the post it carries is shown and 410 after, and also serves the announce-{postId} ids the group outbox lists, which now keep a stable `published` instead of the time of the fetch. - A persona's boost points at the boosted post: its `url` in the Mastodon API is the boosted post's page, and a browser following the boost's id is redirected there instead of getting JSON. - /tags/{tag}, where every Hashtag link we send points, is now a public page of this server's public posts with that tag, with the same strict CSP and noindex as the profile pages. - Grouped notifications (/api/v2/notifications, its unread count, a group, its accounts and dismiss). We advertise api_versions.mastodon = 7 so clients show quotes, and clients that trust it call these; they answered 404. Likes and boosts of one post group together, as do follows within an hour. The version string stays 4.2.0 until streaming and Web Push exist. - A remote account's follower, following and post counts are what its server publishes. AccountCountsJob reads its collections' totalItems from its own origin, signed by the instance actor, at most daily and only after the account was fetched, never when someone looks. They used to be 0. - The other ids that do not resolve are documented as such: Update, Delete, EmojiReact, QuoteRequest and its answers, Flag, Ignore and poll votes. 676 tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:56:18 +02:00
thepraandClaude Opus 5.5	8f25bf056d	Everything on, phase 4a: one answer everywhere for counts, search, collections and the instance API Owner decision 2026-10-04: fix the mismatches and every other mismatch of the same kind. - One counting rule (Domain/Privacy/Counted), Mastodon's. It is used for a persona's statuses_count, its outbox totalItems, NodeInfo localPosts and the instance status_count, which used to count four different things. It counts every post that is neither deleted nor a DM, boosts included, and circle and located posts too (owner decision). A group's count includes its remote members' posts. - Users. Personas of banned or deleted roots no longer count, and are not found in search. NodeInfo now gives activeMonth and activeHalfyear, and the v2 instance gives active_month instead of a constant 0. - replies_count counts only public and unlisted replies, so it no longer tells anyone that a private reply exists. Migration _012 recounts it. - A remote account that deletes itself takes everything out of every count (GoneActors): its likes, downvotes, reactions and poll votes go and their counters come back, as do its boosts', replies' and quotes' counts, and its notifications. Lookups, account lists, search and favourited_by no longer show it. Migration _012 applies this to accounts already gone. - Deleting a post also deletes its pins and the local boosts of it. - /stalking gives the same total as following_count. Members are still never listed, and hide_collections is now always true, since the setting never did anything. - Joining a community by invitation is following it, so /flock and /groupies agree; leaving unfollows. - Search. Anyone may search, as on Mastodon; resolve and offset need a sign-in, offset pages, and deleted accounts are never found. - notifications/unread_count counts what the list shows, and the owner's follower and following lists page with Link. - The instance API advertises what is enforced: - max_characters, now enforced with a 422; - max_pinned_statuses = MaxPins; - the media types and limits MediaService and MediaOptions accept; - PollService's limits; - the configured languages; - no streaming URL until streaming exists. domain_count counts the servers we have exchanged with; which ones stays unpublished (peers is empty). - Routes Mastodon answers now answer instead of 404: - directory, tags/{name}, timelines/link and identity_proofs; - instance/languages, translation_languages, domain_blocks and privacy_policy; - the v1 and v2 notification policy, and notification requests. Also, from phase 3: a recovered password ends /clientapi sessions through a per-root SessionStamp claim instead of comparing the JWT's whole-second nbf with the change time. That comparison let a token issued in the same second survive, which made a test flaky. 671 tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:48:40 +02:00
thepraandClaude Opus 5.5	123ba39520	A post whose author cannot be shown is left out of a list, never a 500 Build / Build (push) Successful in 4m19s Details Deploy / privapub.thepra.dev (push) Successful in 4m50s Details The v1.19.0 deploy's tests failed where build.yml's passed. A test stored a public remote post with no author id, and when the public timeline test ran after it, MastodonMapper.Statuses looked that null up in its accounts and answered 500. The mapper now skips such a post, and the test stores a real author. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:46:48 +02:00
thepraandClaude Opus 5.5	f6dbf71964	Everything on, phase 2 completed: SecureMode on in production, checked by the deploy Build / Build (push) Successful in 5m5s Details Deploy / privapub.thepra.dev (push) Failing after 4m39s Details Owner decision 2026-10-04: SecureMode on once the pasture passes with it. - Both clean pasture passes were run over all six peers: - normally: 246 passed, 0 failed; - with Federation__SecureMode=true: every federation check passed. The only failures were four checks expecting an unsigned GET to get 404 or 410 where SecureMode answers 401. Those checks now go through `unserved` and `gone_unsigned` (lib/interop.sh), which expect 401 when SecureMode is on. - Circle posts now reach their member on GoToSocial and Mastodon, and survive Mastodon's signed refetch, as does a followers-only post. The GoToSocial expected failure is gone. - appsettings.Production.json turns SecureMode on. - The deploy now checks that an unsigned GET of @thepra answers 401 and that a browser is redirected. It reads @thepra's discoverability through the Mastodon API, since the actor is no longer readable unsigned. - docs/INTEROP.md (Mastodon, GoToSocial), CLAUDE.md and ROADMAP updated. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:34:48 +02:00
thepraandClaude Opus 5.5	8c2eba6cbb	Everything on, phase 3: sign-in and recovery tell nothing, recovered passwords end sessions, deleted roots are gone everywhere Owner decision 2026-10-04: fix the account privacy findings. - Sign-in. Every failure answers "That username and password do not match." after the same work: an unknown login is hashed against a decoy, and the comparison is constant-time. "Banned" is told only to someone who gave the right password. This covers /clientapi/user/login, /invitation/login and /oauth/login. - Recovery. - Every request answers the same sentence and queues a SendRecovery job, whether or not the account exists or has an email. The lookup, the code and SMTP move to RecoveryJob, so neither the answer nor its timing says anything. - Codes are kept only as a SHA-256 hash, for one hour. Migration _011 drops the plaintext ones, which never expired. - A recovered password ends every session of the root. RootSessions sets CredentialsChangedAt, which JwtEvents checks against the JWT's issue time, now stamped as nbf, and revokes each persona's OAuth tokens and authorizations. - Deleting a root (RootRemoval: the admin route, or the restored self-delete at /clientapi/user/delete, which asks for the password). - Its sessions end. - Each persona and each group it owns sends Delete{Actor} to its followers, its members and the accounts it follows. - The personas' posts are emptied. - /peasants/{name} answers 410 with a Tombstone (formerType Person or Group), as do its inbox and WebFinger, through LocalActorService.Gone. The names stay reserved. - The root keeps only a unique `deleted-{id}` name; the second deletion on an instance used to collide on "Deleted user". Also, from phase 2's pasture: GoToSocial files a circle post like a DM and shows it only to accounts it mentions. Each member's copy, and a member's refetch, now also mentions that member silently. The GoToSocial scenario checks circle posts in conversations, like DMs, and they pass there now, as on Mastodon. 657 tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:16:59 +02:00
thepraandClaude Opus 5.5	fcd35f5043	Everything on, phase 2: circle posts for everyone, private posts on signed refetch, browsers past SecureMode Circles (owner decision 2026-10-04: fix them for compatibility): - Mastodon 4.7 and GoToSocial drop a post that names none of their accounts, and a circle post named only the circle and its /flock. OutboxPublisher.Publish now sends each member a copy that also names that member in `cc`, on the activity and on the object, and names no other member. The Create, every Update (edit, poll, quote approval, policy, through the new PublishUpdate) and the Delete (StatusService.Remove now uses Publish) all go that way. - UpdateOf renders with the post's group, so an Update keeps a circle post's `audience` and a community post's `Page` and title. - A reply to a circle post stays in the circle, whichever client wrote it. - A circle post can no longer quote a post that needs permission: asking would show the circle post to its author. Posts that are not public, on refetch (SignedFetchAuthorizer.MayRead): - Followers-only, direct and circle posts are served to a signed request from someone they were for, or from the instance actor of a server where one of them lives. That is a follower or an addressed account, an addressed account, or a member. Everyone else still gets 404. - Once deleted they answer those readers 410. Mastodon deletes its copy when a refetch answers 404. - A circle refetch names the requesting member, or the members on the requesting server, as the delivered copy did. - /grunts/create-{id} serves the same. - /peasants/{name}/whispers/{id}, a DM's `context`, was never routed. It is now the conversation's posts, for its participants only. SecureMode lets browsers through to the redirect to the public page, instead of answering them 401. 653 tests pass. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01ELjqpznMFMNrJoJUj6K5p2	2026-10-04 03:01:14 +02:00