Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“They were cooperative and helpful.”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2515345787

Proof data

Record hash (SHA-256)

ff8b888da0184369012e4d7af09ffa512d03f3095c40da2acda62320b1c52081

Signature (Ed25519, base64)

pq2RMIGBZrMyHGieUq9Iiy65bP8Mb4YSBcIlpTvIsm7BbswX721tnOuD9CDYO8Kgzt7UYcCloUGNaUg75E/DDA==

Merkle root

e61c2598d4d03770603e24740bcc427581e87bcbeea2e56dc34fd81a9f496465

Merkle path

["ff8b29617a1993ac7eb31ffcd5ae6c23dd023d9977f1b7e0246731f6c7deb851","cf67c1be95ff88ee9a7b6b39ae536f12e33fc262ee400bd0cc4b1dce48f2f427","f9b31454bc341a0c0755621dc14d66bd43f92c1ea9631ba9b958d71d1e5f0c92","5981371ec020b1617bdb14199a815fe3d2ab10e81d8c67222cfbe37113271118","49652093471812340e58475e51c93488428516a67d2155baef91d8e3c92702ed","fd1c2fcd526f5037d1455f70181a991c50cc7a18b2e8045d8f652177b56fcdf3","48745e50a030f9e1ef037437d6e73f2e55cc70f6c5aafa8a81ef3abde1457c0b","c343e973657827892dd65dc9e4dea0ade472ae243431c61322df774674520ea8","d7e880aa02298a2fccd8e06f9059b4f912e6a5c5d888a6cb41e3210bd18dc75a","e2ec0001e9b6684d109e3e4712949c5611fefdd487a8ab288761292e87a08fb8","c36f0057469646e47e479714eb58be6048f8f88180c77ede26daf963913a58f2","178354b4aab4af523ebcb0558b8ed8c1db0fa0f77d72042a3c28213d8a82b6d1"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515345787 · entry 108e9186e8c5677a749c…

Expected log hash

d9a90b5e7311041bf4315991ca7f2fbceee461daa2ae70a8b8b95323461a31cd The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787140356347","kind":"published-quote","locale":"en","page":"brand:drawboard","quote":"They were cooperative and helpful.","rating":5,"review_date":"2026-07-23","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a61b4d05ac181f4fdfedd1c","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (e61c2598d4d0…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.