Independent verification
Verify an Evidence Passport
Recomputes the SHA-256 chain here, in your browser, from the passport's own bytes. Nothing is uploaded, and no result is taken on our word.
Your browser. Your verification.
01 /
Browser-based checksVerification workspace
From the engine
Fetch by id
One request, to the engine, only when you press the button.
What gets checked
- 01Recognised format
The passport's format identifier.
- 02Hash chain intact
Checkpoint order, links, and payload hashes.
- 03Body matches seal
The recomputed digest against the recorded seal, when present.
or paste it
Paste a passport
⌘ / Ctrl↵
Entirely offline, zero network requests.