Writing receipt

How this was written

Mostly typed

By P.T. · Mon, 11 May 2026 19:31:43 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: 17s

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 20:27:34 GMT.

Transaction: 0xb56248de97cf7fe37739028705b3fee6e33a0517d9558f1a1581cb416a0c3a84
Digest (keccak256): 0x74c2ff628d838f6e2b9f879c91d123eb5842d355e86c8581286f71e4fd6c8896
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)" 0x74c2ff628d838f6e2b9f879c91d123eb5842d355e86c8581286f71e4fd6c8896 \
  --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: af2f5f42-493e-42ed-bd2c-63271e5ec641
Text SHA-256: dffd6021bb2bd5b0af676290809ec3a53191dd81c7f70a4b28688a362182986f
Signature: fJ6gdVUG/bea6zFdXXiqszjgZRgf8a8axmfxERjUI6Vkxea7OfetaYLq0JmlbC22eOCrTWCX1C0lytg1yzeACg==
Created: 2026-05-11T19:31:43.113Z

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