Observed arrival · 2026-09-04
C2PA Inspector Checks Whether a File’s Provenance Holds Up
A browser-based tool that validates Content Credentials in images, video, audio, and PDFs without uploading the files.
Field notes
The validator accepts up to 10 files at a time across image, video, audio, and PDF formats, then evaluates both the cryptographic claim and its relationship to the file bytes. Its checks include certificate-chain trust, RFC 3161 timestamps, carrier-specific hashes, and recursively nested manifests. Sample fixtures are deliberately instructive: image and video files use test certificates that fail trust while retaining valid signatures and hashes, whereas the supplied ChatGPT-generated PDF is described as verifying.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue