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.

“Very Satisfied with VPN functionality and service”

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 3247835674

Proof data

Record hash (SHA-256)

004756c6f4d3aaffa74b233412141a4a1077c21f8d1bddb9376ae5d62cb33e82

Signature (Ed25519, base64)

vXfgnSDAkWD1tpiLnXRC9yzNTP9lcdocdTLCENt159PWBfaq/0XfGzzaR0mgW68E+k3kzgNQLNDONqJfVO3fAg==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["00439e68ad272759069a2e0b9b78a204a2a73a2c130fd2c492b95c157fd5895a","21a2420e4be2e5faeefc2472e8f48fadad2bd004f489526414877847e4410f5b","ef0eed814599958372d9d5d89ebec8acd95c7bcd4b7d6fe19e94262e4abc1ac1","7f46fbc5e14d751553891a0ae9a0e4860c8f51bcd13896c919aa891ae2919796","b579f349957ea786b2ef255218c1195289bf66c771d22ff6d59aebe3d3e2069d","8aa60aa0d6d999bbd8ad8423403a97efc74f312703daacd812b053c122a23ec4","8782817481fb22e45ded698df96001c6b086e01e1941a37025d2a4155602bdd3","2604456c57f6e4629e9f3a32b242c50a5993bdbee71667aaf1a806403ccd4900","18cc092538dca4ee83244538e23b2e041304cbc898a76c372bcd1478544b3bb5","c5b6704c038d47d2378e7825f4405c596cadf3e4f58890085fb142aadaec0b39","5b6bf80b3005705f51dc7da6c03522d0a90ff1a4add2493eec66879a0621f813","69e0b278fde36472d775b547f81c80ab6a46676326bfbd973817b55dc3255d09","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"Very Satisfied with VPN functionality and service","rating":5,"review_date":"2026-08-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a95e7dc9b645cbb90eabfd3","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 (8af5f2f3f65c…), 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.