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.

“The customer service link is very hard to find.”

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 3162293789

Proof data

Record hash (SHA-256)

189c40442770b140604111767076322e788e09eaf0ab69b0efc3aa08abd7008b

Signature (Ed25519, base64)

6E7Wa17dVtlD9wHNoqB0PZPx9x07DZgxCWoAfWy6AqPwlGPO20UEHhBTJDY8nmkmt0gdhfdAoTquK1ymJkgMBg==

Merkle root

ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78

Merkle path

["189d083bcefa8c39f985289f29c310ef7968eb6a4fb871460a2998e9feee7114","a84de11b8fe3f9304a31ff55720485e67aa643e8b73e15c097667ae097351846","f9151db288c3fcff07ff590948419cdbb5b93a2f6f69ffba659d6bf447505137","80cf4267f8c2a371d9a7bd6f738b4ac2ff70211998a9f1200a4dc5cf5a36a7f7","09f191beaee487063e11096e8e670c9232f56c492e8b74f2bcdcd9e24a094343","21f21b43755334078226a7b5eb12167a142c3024f6bfa5b0465cd7fcb515787b","0f76333a95ecdb2c1afbbac49dadc5fd7df8e153dc18cc728b5a20bc87aef943","9d1d6419e0218703f687a60844522e3a5723f7c23b540d4ff025733adfb0bd59","6b30e0373c80667f4b8b4a6832049959129730a39f3b0209a0e9c9bd52b27021","cf496d04bbbfd6727e92d40c5b1fa0c9043f26e438eda377c1ac99c6f2071e35","d1c8ff8c8bff6e1437d1d0b99928fbdfbaa656a852f36b4fef47a399f2e983af","cc82dcedf1803fb9cd4fbf2969503996cb7816723bd49062350004454130bee0","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…

Expected log hash

49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"The customer service link is very hard to find.","rating":1,"review_date":"2026-09-07","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9df22a60dec636dc514ca9","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 (ab8d4de5853e…), 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.