Writing receipt

How this was written

Mostly typed

By Anonymous · Wed, 29 Apr 2026 20:40:32 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: 100%
Pasted: 0%
Paste events: 0
Duration: 19s

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 20:27:05 GMT.

Transaction: 0x97e8a1b4b17a81c9e2ccfb92f1194917a729ff46a2fcd176a1df6ab8c97f8ff6
Digest (keccak256): 0xa50367a887d9f580f66a17339b1dfd3b3e7e3b12e7756e17b971ca8f27388385
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)" 0xa50367a887d9f580f66a17339b1dfd3b3e7e3b12e7756e17b971ca8f27388385 \
  --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: 172b7955-ce2c-4aba-a31d-68ee645a88e3
Text SHA-256: 76f2844f3e4bf0d8dac2049ca0ceb5395fd3ef4280caa1cd79aa1ab693d58ac9
Signature: 1pFA21YUWlcCDljWBZ97t6Ezh8WpJDwmUivfKoruSpfbp4eGeSd3VMPyGHpUWMR6Clx8lC2H5u9jTTMxYBYCBA==
Created: 2026-04-29T20:40:32.663Z

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