Writing receipt

How this was written

Mostly typed

By P.T. · Wed, 13 May 2026 16:23:39 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 20:27:35 GMT.

Transaction: 0xfcdb2fd5ca42edc3215b7deaaa82c38580f5f6bba03923efbf24c574f2d5aec6
Digest (keccak256): 0xf333dddbcea1d5b764c81c0a5dfe01662b63d7d08c582e599f13c3848bbbafca
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)" 0xf333dddbcea1d5b764c81c0a5dfe01662b63d7d08c582e599f13c3848bbbafca \
  --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: b84b5ccf-4f70-4a48-b4f5-f0cb1b5a7134
Text SHA-256: 2de5b9741c5ef58e0813b4dd901eb4e137c770d32d3644b319e6c0f91d857280
Signature: gCiKAs5QWsUJrR7+jlSrfQSwZzo6O4ZZhCQjJ5EbyoF78xBn255tP7bckBER6TaJbqbnj83oCaODhFYb+CoSDA==
Created: 2026-05-13T16:23:39.215Z

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