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provenance-verify

Cryptographic C2PA / Content-Credentials verdict for a media file. Parses the embedded manifest, verifies the signature chain and asset hash-binding against the C2PA production + Interim trust lists, and returns a go/no-go verdict (authentic-provenance, untrusted-signer, tampered, unsigned) with the distilled signed claims. Cryptographic provenance, not a deepfake detector.