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Why Provenance Metadata Does Not Survive Platform Re-Encoding

platforms recompress on upload and several drop the manifest entirely, so a team that treats a signed asset as permanently labelled is wrong about its own compliance

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C2PA Content Credentials: Why Screenshots Defeat Cryptographic Photo Provenance

The core theoretical principle is that cryptographic content credentials provide a tamper-evident chain of custody by cryptographically signing image data and modification manifests within secure har…