Share producer identities across mark routing, attribution, and pinned signers.
Preserve nested Honor TC260 fields and report unsupported RSA signatures.
Document the Google Photos checks and public sample search.
Use an SDK-signed synthetic carrier for negative EKU checks after the original
Microsoft certificates expired. Skip boundary regex scans when no C2PA
soft-binding identifier is present.
scripts/sync_c2pa_soft_bindings.py --check hits api.github.com to resolve
the latest upstream commit SHA, unauthenticated. That endpoint's 60/hour
rate limit is per source IP, which GitHub Actions runners exhaust fast
since many workflows share the runner IP pool -- this was failing the
lint job with "403: rate limit exceeded" on every push regardless of
whether the change touched anything related.
Send an Authorization: Bearer header built from GITHUB_TOKEN/GH_TOKEN
when set, scoped to api.github.com only (raw.githubusercontent.com is a
separate, much higher-limit CDN and doesn't need it). Wire the workflow's
own GITHUB_TOKEN secret into that step's env so CI actually has one to
send, raising the limit to 5000/hour.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Extend the development-only benchmark family from images to audio and
video, and close four research directions from the watermark-landscape
map with local, revision-pinned evidence.
Benchmark schema: media_type audio and video rows, audioseal and
videoseal adapters with media-checked adapter binding, sample-domain
audio fidelity (SNR with unbounded_identical), frame-domain video
fidelity (mean PSNR, changed-frame fraction), and per-frame temporal
evidence in videoseal detection records. The report accepts all three
media types and carries SNR columns.
Audio: shared pinned AudioSeal oracle, synthetic and system-voice
speech cohorts with matched negatives, codec, noise, removed, and
forged arms, and the provenance experiment proving visual-only video
cleaning leaves the audio bitstream and watermark verdict invariant.
Video: TorchScript-only VideoSeal oracle (the pip package is unusable
on macOS arm64 and its loader resolves paths relative to cwd), video
cohort with crf/scale/fps attacks and four-state arms, temporal
evaluation measuring the crf decay curve, the frame-aggregation matrix
(computed locally after finding the TorchScript build ignores the
aggregation argument), and real provider clips as carriers.
Forgery: double-embedding study showing the last writer wins completely
under both oracles, scoped remover-trace probe, and the forged/
removed cohort arms encoding each scheme's correct expected verdict
(presence rule for audioseal, message rule for videoseal).
C2PA resolution: measured the five vendors' resolver contracts and the
C2PA 2.2 18.10.5 privacy gradient; product decision recorded that this
tool never resolves over the network. A registry guard pins the
published resolution-API set.
Gate: ruff and pyright src/ clean, 2114 passed / 3 skipped; maintain.sh
stops only on the known unfixed lightning 2.6.5 CVEs, pre-existing.
Victor Kuznetsov