C2PA

The Coalition for Content Provenance and Authenticity specification: a signed manifest bound to an image, video or audio file recording how it was created and what was done to it, often surfaced as Content Credentials. It establishes provenance, the chain of edits, and nothing about rights: a manifest does not prove copyright ownership, and an asset with no manifest is not thereby unowned or synthetic. Most assets on the web carry none, so absence is the ordinary case, not a finding.

Terms this definition uses

Content Credential

Proof and provenance

Showing a record existed at a date without asking anyone to trust us.

OpenTimestamps · anchoring · Content hash · Manifest tampering · CAWG training and data mining assertion · content-addressed storage

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