Writing receipt

How this was written

Mostly typed

By P.T. · Sun, 03 May 2026 18:45:32 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: 89%
Pasted: 11%
Paste events: 2
Duration: 16s

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 20:27:14 GMT.

Transaction: 0xd5ba128c45e01d7a8babd3e56b530064016e886563c1d5990d27ace92a371a5d
Digest (keccak256): 0x23ec76c00d6adcef93a432452db13a3062ad08bece35af7640cf7f9036c07c4d
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)" 0x23ec76c00d6adcef93a432452db13a3062ad08bece35af7640cf7f9036c07c4d \
  --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: 338b0b0b-27fc-4bf5-8d89-dd8ec75ce8ef
Text SHA-256: 28763e33e76b02c92074d5e7bc8e0e4532cb768b539d2a46157bcbe092bf99ed
Signature: +Wo7HdVW2BbahTVYMCeCSMF61yucBzs5qB9xRwyKj0++8ao1I4GHrtKGfKilaY7S7z5iQl3FTRDrXBaDLINyDw==
Created: 2026-05-03T18:45:32.746Z

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