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Document Meta Muse Image Content Seal support with oracle-verified corpus

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Muse Image (muse-image-1.0, Meta Superintelligence Labs, 2026-07-07) ships
every output with Content Seal, a proprietary invisible pixel watermark, and
no visible mark. Establish support documentation and a verified corpus:

- data/contentseal/: five own generations via the Meta Model API, every
  oracle verdict recorded in manifest.csv (44 rows, settled-text protocol,
  fresh-navigation variant for calibration rows)
- Oracle: meta.ai/identification web tool only; no API endpoint exists in
  the Meta Model API (verified against dev.meta.ai/docs); internal REST
  pair documented with its server-side sliding-window rate limit
- Removal: default qwen-zimage profile clears Content Seal (oracle-verified
  on the worst source); strength floor derived at 0.1 by the standard
  worst-boundary-plus-cross-source-spread method, recorded but not encoded
  as a constant since no provenance signal routes Muse output onto a vendor
  cohort
- Seal robustness measured: survives resize, JPEG q85, metadata stripping,
  CDN WebP transcode; dies to center crops and diffusion regeneration
- tests/test_contentseal_corpus.py guards manifest integrity

Co-Authored-By: Claude Fable 4.5 <noreply@anthropic.com>
This commit is contained in:
Victor Kuznetsov
2026-08-26 21:08:47 -07:00
co-authored by Claude Fable 4.5
parent 29f17105de
commit e09104e39f
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@@ -111,6 +111,14 @@ For important outputs:
Provider systems can change, so a result verified on one file, seed, or version
is not a permanent certification.
Meta Content Seal (Muse Image) is in the same family: no local decoder, presence
recognizable only through the XMP `trainedAlgorithmicMedia` companion tag while
that metadata survives, and removal verifiable only through the anonymous
`meta.ai/identification` oracle, which rate-limits by IP per day. The oracle's
negative is weaker than its positive: Reuters measured it missing 55% of cropped
Muse images, so treat a negative on a cropped or heavily edited file as
inconclusive rather than clean.
### Video SynthID removal is lossy and content-dependent
The `video invisible` command and `remove_video_invisible` API regenerate video