GDC · Evidence Verifier

Verify a record yourself.

Drop an exported GDC evidence-chain file here. This page recomputes every hash, checks every link, and recomputes the Merkle root — entirely in your browser, with no network and no GDC account. It is the four-step procedure from the regulator explainer, automated. The SHA-256 used here is standard FIPS 180-4; you can confirm any single value with any independent tool.

The four checks: (1) each record's hash recomputes from its contents · (2) each record links to the previous record's hash · (3) the Merkle root recomputes · (4) the evidence measure Ξ never decreases.

Drop an evidence-chain JSON file here, or click to choose.
You can also paste the JSON below.

GDC · evidence verifier← overview