Writing receipt

How this was written

Mostly typed

By Anonymous · Thu, 21 May 2026 20:25:15 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: 5s

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 Thu, 21 May 2026 20:25:16 GMT.

Transaction: 0xa4c0f50af38a0032dd6344763f85d6c124d4c89fb218970f7870cd5749517033
Digest (keccak256): 0x4ec7bbc6ec6cea67b49ed52e86d2d6e908de3dea420c67ed97d1c2b6f6601ada
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)" 0x4ec7bbc6ec6cea67b49ed52e86d2d6e908de3dea420c67ed97d1c2b6f6601ada \
  --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: 3387a117-b0ce-4b7f-9655-47ead983bd14
Text SHA-256: fe4fe4d2b7c321319c98149070ffd5c9fecc997c593cd10f5540c808e48f570e
Signature: td/dwnNIwaeem5ihyu7382udmhW7lln5VuOmmQZtjSM0XALBpA0cUQ73a8URV0QFHl0w2HReoqoS9WQjHIQtBQ==
Created: 2026-05-21T20:25:15.716Z

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