Writing receipt

How this was written

Mostly typed

By P.T. · Sun, 03 May 2026 18:45:38 GMT

Signature did not verify. Treat this receipt as untrusted.

Text

This receipt covers text written in the byhuman editor. The text itself is not stored. Only its SHA-256 hash is stored.

Observed writing process

Typed: 100%
Pasted: 0%
Paste events: 0
Duration: 2s

The verdict reflects the provenance of the text that survived to approval. ByHuman records observed input behavior in the editor. It does not prove real-world authorship.

On-chain anchor

Anchored

A digest of this receipt was anchored on Arbitrum Sepolia at Tue, 19 May 2026 20:27:16 GMT.

Transaction: 0x1e893fd717259811de5d924e5ed958cb948646d227a450555960bbf9a4e38279
Digest (keccak256): 0x9ffecc197a573bae2cd362bf6592bdaa0d6aa6990cc5704074823cdee9da4672
Contract: 0xaaef72f5e32a238a2c91d04ab72bb7f1a2c22cd6

Verify independently (no byhuman.ink required)

Anyone holding the receipt JSON can confirm this digest is on chain without trusting byhuman.ink.

Compute the digest from the receipt: keccak256(canonicalize(receipt)). It should match the digest shown above.

Read the on-chain timestamp from the contract:

cast call 0xaaef72f5e32a238a2c91d04ab72bb7f1a2c22cd6 \
  "anchoredAt(bytes32)(uint256)" 0x9ffecc197a573bae2cd362bf6592bdaa0d6aa6990cc5704074823cdee9da4672 \
  --rpc-url https://sepolia-rollup.arbitrum.io/rpc

A non-zero unix timestamp proves the receipt existed on Arbitrum Sepolia by that block.

canonicalize uses RFC 8785 JSON canonicalization. The contract address and network details above are the inputs needed for the independent on-chain check.

Receipt

Post ID: d75caa4f-fa90-4ee9-ba12-38fb01799f12
Text SHA-256: 2c52042f220b6c41c876cf5b51b5491675e0226b812b7669a2b8578ec1829948
Signature: RgSzptMq0V/RJK4WSZZ+Vg4DDazanwmql7SFRXIzLynN4tAjFYwYAqzqIVKHM2GNhQN5mTlGzaZvXBKdV3aSCw==
Created: 2026-05-03T18:45:38.904Z

Verify this independently on the verify page against the published public key.