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.

“Security and excellent 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 3240231023

Proof data

Record hash (SHA-256)

263f4a0858867d84335ebaeffe78be99b1a7da64df31defa303f0c4f54f2fba6

Signature (Ed25519, base64)

FWT1aJfKT+wlqWiler8TYiLh+G8wmECMIV8cjm6N3UI6ytpse6eiFBRItE4hkILw8s18p2PU8H07dzzT9436Dg==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["26377bd31c17f7d29908be4ee422db7ec55a12831a1958603ffe9699157f7c03","b5c79d1a2c113f06206520f8ab9e79e5fdc4ac7c7492201b377e5a5eb88f9b28","413f6bc08ec96819021fdd27285bc490dbd0d8aca2e95ca9008b73e9a4f44d1b","530c11d8ead163dfb9a920f10b76bba965227c67440ac998d465673c6400826e","a4fa726b6378563f98c9eb24f640196cb3d157b583ffb85b7b4e82161d08af27","b540a43ae1e07b317b83faf1a8a9fd88d585e3c0bceb1ba0d25f8d60733a701b","17203b58c547f8a0989e749fa3b67e622c6080cdd1ec1abb6e85c451b1689fb8","97e14cc8683af585fd528e3e4da848672feb0947661f8fe2280ee32c66fdd55a","3f61b6e553af7219c000cbcd30c5f838f9d27a6db921dde46d865fef94578e28","afd8bff8776c9683243789cc5493fa889bbd74c8618502994b96be432814987b","36593ff6981142345d894360aba2045a8b70ebe4ed0dd9f3ba3c7292169f7244","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"Security and excellent service","rating":5,"review_date":"2026-08-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a94ca5e1c0d5def859ad9fb","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 (888a38c73939…), 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.