Independent verification

Verify a record.
Trust no one.

The open-source verifier recomputes every hash, signature, chain link, Merkle root, and witness cosignature from scratch, trusting neither the agent that produced the record nor the sink that stored it.

Runs entirely in your browser. Your bundle never leaves your device, not even to us.

Drop your own bundle.json here

or tap to choose a file. Verified locally, nothing is uploaded.

Advanced: paste a bundle, or transparency-log keys

The exact same verifier runs offline in the pr verify CLI and is tested against a frozen public conformance-vector suite, in both Python and JavaScript. Want to record your own verifiable runs? Get started. MIT licensed.

Verify a record.Trust no one.

Verify a record.
Trust no one.