Writing receipt

How this was written

Mostly typed

By P.T. · Sun, 10 May 2026 14:36:33 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: 13m 11s

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 20:27:27 GMT.

Transaction: 0xdc0cafb839d261665c082cba35583da625a578e399cd5fb96df70c71ba32c589
Digest (keccak256): 0xa60ee634345f5768ceb32414372f9c704977ae755cca28674417ecbf002a11fe
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)" 0xa60ee634345f5768ceb32414372f9c704977ae755cca28674417ecbf002a11fe \
  --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: 5de77355-d6d2-42c5-9c8d-9d74fd2070c7
Text SHA-256: fb148037e5ea1d504579a60a4ccbb3ad7ba09113dcb7c3d87f8105cc3b457e1f
Signature: UlCagwbomadzFNKbLmazTM1LCpYsyNXRvks690sFhh2KY39A8p6qMm3oCHia2ind8ilihRcgORt/UPscaoLXAg==
Created: 2026-05-10T14:36:33.110Z

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