Receipt verifier · runs entirely in your browser

Don't trust us. Check the chain.

Paste a receipt, proof, or /attest response. This page checks it against Base and the issuer's published key — client-side. It never calls Traceipt's server; a receipt stays verifiable even if that server is gone. Try to break it.

Ed25519 · WebCrypto RFC 6962 Merkle proof Anchor check on Base mainnet Zero calls to our server

Receipt / proof JSON

RPC offline (skip on-chain)

The checks

✓Checks run here, in your browser.
Load a sample — or paste a receipt and try to make a forged one pass.

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.