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.

“I emailed customer support to cancel my contract, but got no response.”

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 2776103867

Proof data

Record hash (SHA-256)

43ee452fe642bff52fa62cd3599984a1923083899f686d106b2f2540d8a2ee78

Signature (Ed25519, base64)

mGzjQnlfXDV5CaK4E+qBvn24kxlFugagVlcrCu4WJUa4RWTGahqGXA0sueF4EZPfSdD5N9zJVLN05BosdnPHBQ==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["43ee8d3cc1490e5fe177a1a43db81874d52fbccbd8a547880bb78945ca96f8ae","2b9371342b4dbafb83baa771dfe9acc2e29dfda6f3beb028d15e57999ea73e25","8e7b31edc1fd0602ff77f53bec1b67ffd6051f60baf22c1e8bce1bb79e79d271","3dc846a7d1fa6cd6ed8e32473e961a0a0c180dbf2939436e798b90b49e13f614","e223d5f0312f378ba599affc65031d3b50cffbfcdc222bf58aa9b74449856df2","4460e81bc26395f79640876dc4f5651f85bf6bf91e55e9bfb862476c0c962531","d45ced029b8f412d49ac8c05d6ae2f3efbb8fdf0e2cceabee3087eb3220e890e","6ec1465f54324cc49e7c56cec0ae0d63985a2f6872f8b05f36e3dc1b97aaac5d","53d94c65dc616f77bbb943cc7dcf8b1fcdef877215871978213cfb647314bd1d","796c89ce9e9d70451764bb0b576b2473750f515dee6bfc33b3e5769d8b918038","b3cfe109b5bb9f243d20c2a271467917ea2dcd34b9b8849808c5bd9262017db2","5db6d47c594533280883338cc5dbafe319fd04677875292608d75d9596fea1f8","aafc4d7abd1fbd48f01758db3e1a1278331dd8c09b348c20be15802d81136ee9","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]

Anchored

2026-09-10

Public log entry

search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…

Expected log hash

2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"en","page":"subtheme:surfshark/service/response-time/en","quote":"I emailed customer support to cancel my contract, but got no response.","rating":1,"review_date":"2025-03-10","source":"Apple App Store","source_url":"https://apps.apple.com/tw/app/id1391782046?see-all=reviews","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 (4dc0bd79ba3e…), 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.