Writing receipt

How this was written

Mostly typed

By P.T. · Mon, 11 May 2026 19:19:25 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: 6
Duration: 1m 39s

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 20:27:31 GMT.

Transaction: 0xbe419463db13cdc2c880e950015f9923d0e7216436910293a48cdbe15ae38d0b
Digest (keccak256): 0x8e6dddbe7b7bebaede37e7b0d2be3bf71277e2649943fa735fc3afcb83b988dd
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)" 0x8e6dddbe7b7bebaede37e7b0d2be3bf71277e2649943fa735fc3afcb83b988dd \
  --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: 383473d5-75a7-42df-93f2-f64f3c07621d
Text SHA-256: 185f8db32271fe25f561a6fc938b2e264306ec304eda518007d1764826381969
Signature: A1XVmeCjDYMCpAfmhjGVLDg8RpcTkgVKEVKFzRuUtobZ2jaWKzxOm4gTWvEQpZ0HVeGelesjYBU7SjDDhXjyBg==
Created: 2026-05-11T19:19:25.107Z

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