Paste a receipt, proof, or /attest response. This page
checks it against Base and the issuer's key — in your browser. It never
calls Traceipt's server; a receipt stays verifiable even if that server is gone.
RFC 6962 Merkle inclusion + on-chain calldata check (SHA-256),
Ed25519 signature via WebCrypto. The same checks ship as CLIs:
npx traceipt-verify receipt.json
(npm,
zero dependencies) or tools/verify.py in the Traceipt codebase.
If the on-chain step is blocked by CORS, try a different RPC endpoint or use a CLI.