Verity - Media Authenticity Checker 作成者: Codemintah

Check what can actually be verified about web media — C2PA provenance, prior sightings, fact-checks, metadata forensics. Transparent verdicts with evidence. Never says "fake". Local-first: media stays on your device.

Android™ 版 Firefox でも利用可能

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この拡張機能について

Verity checks what evidence actually exists about an image, video, or audio file instead of guessing "real or fake".

Right-click any media on a page, choose "Verify with Verity", and get a transparent verdict with per-signal evidence:

C2PA Content Credentials: cryptographic proof of origin (Adobe/Microsoft/BBC standard)
Prior sightings: perceptual-hash matching against a public registry catches recycled media under new captions
Fact-check matching: reviewed claims via fact-check sources and ClaimReview markup
Metadata and pixel forensics: editing traces, AI-generator signatures, EXIF anomalies
Context checks: geolocation, daylight, weather, domain age, news coverage

Verdicts are Verified / Unverified / Suspicious, never a bare "fake" score, and every verdict shows exactly what was found.

Privacy-first: analysis runs locally on your device; only content hashes are queried against the public registry. Per-site access is requested only when you check something.

Fully open source (Apache-2.0): https://github.com/Mintahandrews/verity

開発者のコメント

Open source (Apache-2.0) - github.com/Mintahandrews/verity.
Public registry + bots at verity.codemintah.dev.

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Verity - Media Authenticity Checker 作成者: Codemintah

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