0c19c60ad9
C2PA 2.4 extends live video to dynamically packaged content and recommends deterministic signatures for streaming (§19.2.1, §13.2.1, naming ISO/IEC 23009-9); it adds the repository receipt assertion (§18.27). Every manifest identifier is now derived from the stream, a role and the segment's sequence number, so packagers that share a key write identical segments and packagers that do not chain across a failover. The initialization manifest may carry an update manifest with the parent as ingredient and a c2pa.repository-receipt whose proof is an RFC 9942 receipt of inclusion in an RFC 9162 log, verified against the repository's key. Three reasons: manifest_id_mismatch, update_manifest_invalid and repository_receipt_invalid; a failover vector, a registered vector and their negatives; c2pa_live_verify.py reads all of it from the text. The CI step, the registry entry and its export, SPEC §5, the CHANGELOG, the live-conformance README and capture-binding §11 come with it. Co-Authored-By: Claude Opus 5.5 <[email protected]>
262 lines
8.4 KiB
JSON
262 lines
8.4 KiB
JSON
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