Guides
How the C2PA Conformance Program works, why hosted signers sign in their own name, why verifiers say Unrecognized, and what durable Content Credentials are.
Durable Content Credentials: manifest, watermark and fingerprint
No single technique suffices, says the C2PA Deployment Guidance: metadata is stripped, watermarks defeated, fingerprints probabilistic. Together they hold.
Last reviewed 12 October 2026
How to get on the C2PA conforming products list
No fee, a median 17 days from intake to listing across 248 records, two assurance levels, and what the reviewers ask for. Read 12 Oct 2026.
Last reviewed 12 October 2026
Interoperable detection by 2 February 2027: what is actually required
The Code asks for a detection solution now and an interoperable access method or signpost by 2 February 2027. What is required, what is undefined.
Last reviewed 12 October 2026
The 200-token text rule in the EU Code of Practice
The Code expects an imperceptible watermark on free-form AI text longer than 200 tokens, exempts shorter text, and expects the threshold to fall.
Last reviewed 12 October 2026
The C2PA conforming products list, this week
253 records from 151 applicants, median 17 days from intake to listing, 47 listed in the last 30 days. Recomputed from the public list on 12 October 2026.
Last reviewed 12 October 2026
Why a verifier says "Unrecognized" for your Content Credentials, and the fix
Inspect shows Unrecognized when the signing certificate is not on the C2PA Trust List; the only fix is a listed product's certificate. Read 12 Oct 2026.
Last reviewed 12 October 2026
Why hosted C2PA signers sign in their name, and the only way to sign in yours
The Certificate Policy ties each signing certificate to a listed product and its name, so hosted signers sign as themselves. Read 12 Oct 2026.
Last reviewed 12 October 2026
Your company's name in Content Credentials: the CAWG identity assertion
How SignUnder puts a verified company name inside every C2PA manifest with a CAWG identity assertion, what viewers show today, and how it differs from your own certificate. 20 Oct 2026.
Last reviewed 20 October 2026