Provenance
Public verifier

Verify a Provenance proof

Paste an intent token or drop an attested photo. Verification runs entirely in your browser against the issuer’s published keys — no API key, and your file never leaves this page.

What this does — and doesn’t — prove
  • Proves: the token/photo carries an authentic signature from the issuer’s key and hasn’t been altered, and (for tokens) that it hasn’t expired or been revoked.
  • Does not prove here: that an intent token binds a specific payload (that needs the payload), nor a photo’s certificate chain / sensor-hash / risk score. Those run in the authenticated POST /v1/claims/verify and /v1/intent/verify APIs.