Independent Receipt Verification
Verify any FairSeal receipt — from AI agent actions or game outcomes. Every check re-runs the cryptographic proof from public inputs. No trust in FairSeal required: the math is the verification, not this page.
✓ Checks the entropy proof per receipt version (drand beacon or Wesolowski VDF)
✓ Checks Merkle path against Base mainnet
✓ VERIFIED+ANCHORED = all checks pass + on-chain · VERIFIED+SEALING = math pass, anchor in progress · NOT VERIFIED = at least one check fails · UNCONFIRMED = anchor status indeterminate
✓ Or verify offline:
npm install @fairseal/verify
Enter Game ID
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Enter a Game ID above or click a recent game to verify its proof chain.
Notarize Receipt Lookup
Look up an AI agent decision receipt