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test-user 9f93d9c0c5 feat(identify): add Sony C2PA device attribution, verified (v0.6.3)
Adds Sony to _DEVICE_C2PA_PLATFORM, matching Sony's own `sony.sig` / `sony.cert`
C2PA assertion namespace (NOT bare "Sony", which is a common EXIF Make). Verified
against a real Sony-signed file (Sony PXW-Z300, signer "Sony Corporation") found
in the Security4Media/c2pa-video-player repo. The sample is video (MP4) -- our
ISOBMFF C2PA path detects it; Sony Alpha stills likely share the namespace.

Verified device set is now Leica, Nikon, Google Pixel, Sony, Truepic. Canon /
Samsung / Bria still have no public direct-download C2PA sample to verify.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-26 21:13:49 -07:00
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