A media organisation wants to attach tamper-evident provenance data to every AI-generated image before publishing. Which open standard is designed specifically to carry cryptographically signed assertions about a content item's origin and editing history?
- AC2PA (Coalition for Content Provenance and Authenticity) Content Credentials Correct
- BEXIF metadata embedded in the image file header
- CCLIP embeddings stored alongside the image as a sidecar file
- DA perceptual hash digest appended to the filename
Why A is correct: C2PA defines a cryptographically signed manifest that records assertions about how content was created or modified, enabling downstream verification of origin and editing history.
Why B is wrong: EXIF stores camera and device data but carries no cryptographic signatures, so it can be stripped or forged without detection and does not constitute a provenance standard.
Why C is wrong: CLIP produces semantic similarity embeddings for retrieval and classification tasks; it has no signing mechanism and cannot provide tamper-evident provenance assertions.
Why D is wrong: Perceptual hashes measure visual similarity and can detect near-duplicates, but they carry no chain-of-custody record and are not signed, so they cannot prove origin or detect editorial changes.