H2A-Media Profile — v0.1 (working draft)¶

Asset-bound profile for AI-generated likeness (audio, video, image, 3D). Applies only when a Grant lists h2a-media. Schema: h2a-media.profile.schema.json.

Requirements¶

• An H2A-Media object MUST reference its grant_id and the likeness_ref (subject URN).
• The asset.content_hash MUST be a SHA-256 over the committed asset bytes.
• Where a C2PA manifest exists, asset.c2pa_manifest_ref SHOULD point to it. C2PA composition for multi-part supply chains lives here, not in Core.
• For a composite asset, composition[] MUST list the parent assets and their governing grants. The composite's effective revocability is the maximum horizon over all parts.

Notes¶

Modality-specific limits (e.g. no singing voice, no minor likeness) are expressed in constraints and evaluated as scope exclusions at point of use.