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 have been using this product since 2019.”

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 3247957099

Proof data

Record hash (SHA-256)

03567cf75d6462dbfbdc7c0b0ead17193887a837a43b8f7deede300304fe207b

Signature (Ed25519, base64)

Gb96e3vFPYsBgCirKevvj62TZPs0lN5mvh2Y/c/uYtZI+Yw7MzHn75kc++e1Mvynzgs63OXEAm0wmU0c83xADw==

Merkle root

417e79c5636392fe3ad064f685f70971e5d532c1ab257f052022be5e8b8c0dd5

Merkle path

["03579840a2fa785c784ee8a8e793c7874b4a3d384c1cb2d4b63512cf73221bc1","37c3379c198cca432d5f9cd5d71767b02f0c38a8985d66f05fe4366d4968ef7e","5f89be4d38cb76af98b90226bc790047baeb6c4ce849584270635fcf3b5b1f7b","0835fdb3ae8a2e5abe17ed6c6269112cf8292a3cabaac96fe269e7dac7f31f35","f80ea855c70b09cd89e79f31144b6a89f100147e8dc2222985389bf395eaac97","b63c84bbd4f76f879d786c96a2da5f18c0c4b88f828e502ccafe9e4215e44737","4334b0cb513c0fb86e58902cf393490aed6bc2cdbe6bb449ef8fb7b2769cfaaf","953d305a0d09488e2e351fef2b459fe062fe001658cdfc18800987b0495129ca","e57d439d52c190dd3a4750f71c75f074649b684217185ddfa445c02ab0e6f8bb","260b5f8c37ad8bc8159debe95a37b3aa3512981efa2b49fdc0013cd899a9c287","9848aa7690391972fc1e1c527156d4ff6421d5bf48b49106c60eabbbfb4edc4a","97cb88af2d1e7978a1c013f49971981dfc6f6640d100770066cc14dab4231824","a3445df7b332a2879d9dfcbad4af79652a13ea138d6afeb81448d347f1f2d128","57e0ae13344994ee6a0ba58ca5aa3276e7427d3c63abccf6f53bc322580decdf"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247957099 · entry 108e9186e8c5677aa2a1…

Expected log hash

86fba1d35010991e0e45c044558780825516b744aa3dd43e559455260fbef42d 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":"v1791946591199","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"I have been using this product since 2019.","rating":5,"review_date":"2026-08-25","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a8d09cf8d7ff052aae16c89","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 (417e79c56363…), 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.