Commit Graph
5 Commits
Author SHA1 Message Date
dtourolle c41253ef5c feat(audio): store, serve and match the v1 audio signature
Completes UR-009. The register recorded the signature as stored; it was
not. `ingest` validated `cut.audio_signature` and wrote NULL, so every
served manifest came back without one — which also meant the plugin's own
alignment (jRay JR-047, Done) had nothing to align against and could never
run. That is the failure mode a status field is least able to catch: every
validation test passed and the feature delivered nothing.

Now stored, coarse-indexed and served back byte-identically, with a held
manifest adopting an incoming signature it lacked (§9a). `audio`-tier
matching runs on every read endpoint via an `audio_signature` parameter,
and `POST /manifests/search` answers the unknown-providence case with a
runtime prefilter, a bounded scan and honest truncation reporting.

Three rules §3 did not previously state, now normative:

- **±1 frame of slack in the score.** scene-actor-extraction VR-014
  measured the exact-frame rule demoting 27 of 40 correctly aligned
  releases to `loose`, because the two windows are cut on their own
  file's frame grid and those grids do not coincide. With ±1 frame all
  40 reach `audio` (worst 0.906) and the strongest false match is
  unmoved at 0.16.
- **The offset has two terms.** Both windows are anchored at their own
  file's runtime/2, so the slide alone is wrong by half the runtime
  difference on every shifted release. A signature without a runtime
  therefore cannot align, and is refused by name rather than answered
  at a lower tier.
- **A signature verdict is final**, including its refusals. Falling back
  to the runtime tier after the audio declined would let a coincidence
  overturn direct evidence, inverting the ordering the tier table exists
  to state.

The slide precomputes each frame's neighbourhood as a 32-bit bin set
rather than re-deriving it across 1201 slides — 3.3 ms to 1.1 ms per
candidate, with a test asserting exact equivalence to the rule written
the obvious way. The 1000-candidate search cap follows from that
measurement as a ~1.1 s ceiling per request, not a round number.

jRay's matcher still implements the pre-slack rule and will label some
alignments `loose` that this server calls `audio`. Nothing misaligns —
JR-047 makes the local answer win — but that register now carries the
follow-up.

TRACES: UR-008, UR-009 | SR-003
2026-07-31 22:43:26 +02:00
dtourolleandClaude Opus 5 0ff1018bcc Withdraw the file-hash tier; document the legal posture
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Removes `cut.video_hash` and the `exact` match tier on legal grounds. The
OpenSubtitles hash was the strongest technical signal available — it identifies
a specific file, so it cannot produce a false positive — and that is exactly
the problem.

Every tier must be a claim about a *cut*, never about a copy. A TMDB id
discloses "some copy of this film", which is what a library catalogue
discloses. A file hash discloses "this exact release": it made a read endpoint
into a release-level oracle, and made an instance's database a mapping from
file fingerprints to the instances holding them. That is a far more specific
disclosure than PR-005 permits, and a dataset no volunteer operator should be
asked to hold. The audio signature is the replacement: derived from content, it
identifies the cut rather than the copy, so two encodes of the same edit agree.

The field is deleted rather than kept as a vestigial null, on the same
reasoning §2 applied to `anneal_sec` — a key naming a signal the format no
longer has is actively misleading — so an upload carrying one is now an
unknown-field 400, with a test asserting it.

**Every content_id changes**, including for manifests that never carried a
hash, because the canonical `cut` object lost a key. The golden vector is
regenerated and re-verified against an independent Python implementation; the
plugin and extraction repos must adopt the new value or federation
deduplication silently breaks. Free now, pre-release; not free later.

Adds docs/legal-posture.md, the operator-facing half of what §5a asks for:
what an instance holds exhaustively, what it structurally cannot do, and how
that sits against the intermediary-liability regimes that plausibly apply.

208 tests. Coverage 25/32.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

TRACES: UR-011 | SR-004, PR-005
2026-07-31 09:52:03 +02:00
dtourolleandClaude Opus 5 545c7d92a2 Federation: replicate content, re-derive judgement (UR-008)
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Implements §9a. The replication surface is four reads and no writes: a change
feed, fetch by content_id, a batch have, and a human-facing peer directory —
plus a capabilities endpoint carrying the accepted envelope versions, which
lets a client discover a schema mismatch in one request instead of a 400 per
manifest across a library sweep.

Pull, never push: a pulling server chooses what it ingests and when. Push would
let any peer inject work into the validation queue — the same abuse surface as
anonymous upload, at higher volume.

Nothing inherits a peer's judgement. A pulled manifest runs the full §6 stage 1
and 2 validation and this server's own cast check, and the fetched body must
hash to the content_id that was asked for — the check that stops an
intermediary or a misbehaving peer substituting content under a trusted id.
A peer's retraction flags for review rather than delisting, because
auto-delisting would hand every peer a remote delete primitive; only the opt-in
per-peer abuse channel delists, because a takedown propagating at the speed of
manual review is the wrong failure mode for that one case.

A test caught a real bug in the first cut: the feed cursor was a ULID, and
ULIDs are only monotonic *between* milliseconds — two generated in the same
millisecond carry independent random components and can sort opposite to write
order. A peer resuming from `seq > cursor` would then silently skip an entry:
replication losing manifests with no error anywhere. The cursor is now an
AUTOINCREMENT integer, and the test asserts strict monotonicity rather than
merely sortedness.

Peer administration is deliberately not an API. §9a requires that a peering
exist only because an operator typed a URL, so nothing a remote server returns
can establish or widen one; there_is_no_endpoint_that_creates_a_peering asserts
that absence rather than trusting it.

212 tests. Coverage 25/32 (78%).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

TRACES: UR-008 | PR-006
2026-07-31 09:28:32 +02:00
dtourolleandClaude Opus 5 88c7264094 Ship the SR-003 schema bump: jmanifest_version 2
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Moves the exchange envelope to version 2 in lockstep with the truth file's
schema_version, per SR-003's requirement that breaking changes be batched and
ship together rather than piecemeal. The plugin had already moved to
schema_version 2; the server declaring 1 while accepting the new fields
defeated the point of having a version at all.

Flag day, not dual-accept (JR-003): version 1 is now rejected outright. All
three components are pre-release, and a v1 read path would be the one nobody
exercises, so it is the one that would rot while being dragged through every
later change to the reader. A pipeline still emitting v1 is incompatible until
updated — stated plainly rather than papered over with a shim nobody tests.

scenes become objects carrying belief and route (extraction AR-017) instead of
float pairs. Belief is bounded to [0, 1] rather than merely stored: §5a's
Threat 1 argument rests on every accepted value being bounded, and an unbounded
float is a 64-bit channel however harmless it looks. route is a closed enum, so
an invented value cannot be stored.

UR-018 is the requirement with the trap in it, and the reason content_id.rs is
untouched by this commit: belief is a producer-side estimate that may
legitimately differ between pipeline versions for identical timings, so
including it in the canonical form would give two servers different ids for the
same content — the exact failure mode §9a quantises centiseconds to avoid,
reintroduced one field along. It replicates as an attribute, exactly as
audio_signature does. The golden vector still passes unchanged, which is the
evidence rather than the claim.

191 tests. UR-015..018 move from Planned to Done; coverage 24/32 (75%).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

TRACES: UR-014, UR-015, UR-016, UR-017, UR-018 | SR-003
2026-07-31 09:13:14 +02:00
dtourolleandClaude Opus 5 a848750a65 Initial implementation: core vertical slice
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Implements the core of SPEC.md — the manifest exchange, less audio-tier
matching (§3) and federation (§9a), both of which the spec sequences as
later work.

- §2 Jmanifest format and series bundles
- §3 cut matching: exact / runtime / loose tiers
- §4 API, less POST /manifests/search
- §5 rate limiting; §5a trust model, anonymous bearer tokens
- §6 upload validation, all four stages
- §7 relational storage, no JSON blob on the write path
- §8 Rust + Axum + SQLite, single serialized writer, in-process job queue
- §9a content addressing, computed on upload

Reconciled against the system spec:

- anneal_sec removed, withdrawn upstream by AR-012/AR-013. Presence follows
  track extent, so a track survives its own gaps and there is nothing to
  anneal. Its successor extinction_sec and the new gallery_scope are accepted
  and stored; scope enters the §7 ranking. A manifest still carrying
  anneal_sec is a hard 400, not silently ignored — it came from a pipeline
  whose window semantics differ from what this server assumes.
- Audio signature: media under 120 s now emits no signature at all, matching
  scene-actor-extraction IR-007. The earlier §3 draft allowed a shortened
  window under 150 s, which was the weaker rule — a caller-varying length is
  the property SR-004 forbids.
- UR IDs regularised to UR-nnn; docs/requirements.md registers 32
  requirements, each tracing to an SR-nnn or PR-nnn.

189 tests: unit, end-to-end through the real router, and an injection suite
covering SQL, JSON, header and Unicode payloads. Writing that suite found two
real gaps, both fixed here: compatibility homoglyphs passed the §5a character
class, and a one-frame audio signature was accepted on a feature-length item.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-07-30 18:14:02 +02:00