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.

“CUSTOMER SERVICE IS TOP NOTCH”

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 3288590621

Proof data

Record hash (SHA-256)

258cdcae050eb6aa4b897190b31df5c1810b4cd467212866700250ec6b9b2350

Signature (Ed25519, base64)

0nRivdIer9bdOhe5oLupgy67qOcSV4f+Yvd6xTQHhhNh/LQNw48EKk3PLtbT6uG1ETZ+9/AKgtyHZPaYwQSSBw==

Merkle root

5ee295eff08f25e1ca2fd839bd395df8ebef79af0e57c3d4ee8d263342a19422

Merkle path

["259820e7664e7120319decc2310cc87998dcbe6847c4818cedb54cebd09768e7","86bdcfea790edbb2c594d42a618bd61ee703f317ff1ba01a34b432b14e0cc7f1","0e627a2006546b87ff2ad8c386581d8daa5701b34c20e726481233a70745ace1","aec345996fc9e97c60c7468c5757a7a476d32fe79b68d25f91f3af1aa2d7068c","00d92195327916e0ae894b94b97d2a54d0c55b60211669f5efbabb888b8cd7f5","c69c217e791aee87f577f54031d1bacb5d6f07764212ac1e25ed7c3b53009e5e","ba9aa4c97f1bed286676c3897d6f8e5b2a6688fa132a700b78848b1a27aa40e4","bf7eeac9463a993dfabb016d07b6ffbe1cb6baa23668cf5b3ff3b4a49160106f","5130bea92dda4187e2bcb6e0b2a354e9876ae73d82a4e6ab555e7f8f252b732a","fa60901e5d9a6069af23ca58f6f98b17e1d8692c7bbcc30e2eb26411af8beda2","1796b7a61028ee62986581a9c2f32c92a4b98e8f269828a155dab3bacd878595","41ff37d2ba7c20d129650a01caa12fd58478b2ba725f6a1900a5e8a6edde7742","149a88e487e0a55b368195abac6188b4f1a5ff2534a675089a6bffcc120ce8bc"]

Anchored

2026-10-17

Public log entry

search.sigstore.dev, log index 3288590621 · entry 108e9186e8c5677a25c9…

Expected log hash

74cd7239ea435495013841baa58ae65725dc6474b09f06da03b154f0c5d58357 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":"v1792206865504","kind":"published-quote","locale":"en","page":"brand:expressvpn","quote":"CUSTOMER SERVICE IS TOP NOTCH","rating":5,"review_date":"2026-10-12","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6acce296aca125f1f8a6de7a","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 (5ee295eff08f…), 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.