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.

“Great production serves all my VPN needs”

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 3668845412

Proof data

Record hash (SHA-256)

14d0dc092cb6225e6c67430f5c62301d951b9e8f672fd1844e5811c0d5312408

Signature (Ed25519, base64)

bX1Jh4fxOQ6IpkIDpPVhO2AjJe5p0FlrTOB2qHiwmRKJp6+pel9Qt2ywzQb9cbdFWEd9G4AuNDnq8WzcRkCoAw==

Merkle root

7019aaa5828f6d5097886420e36d6e6ded993bbd5a23bd9e2c5cfaa460d7110c

Merkle path

["14d3d7f1b30bda258e06f609c273f51f5a39c7e5fc821917ee35af7abbd804d4","82a20bb6f1f094ffa1f35540514faeb614361e47c282cff8cc2d35a9dc7d6f5c","117c5af7871b59278eaec57bee983246eee107019d63eac7ee3a635bd96511ff","90c0c73512115d98bade4a96868de3b200e58fa6a5095fefc97708bf2e66f5cd","71107768ddf6207a81c8a39f5fd68d7136c44ec378710ee138d4fb1792da71e3","8d269d10a13a317d41f4a031a5c0fae8e829499049e0b9bb87acaf26c75c290c","ec6dcee5727685e3dbf135cc3b63edbff6d72b7cf6d0ed70c9103100190dfb60","81df8e3b9356e7863f6fd2c0637b44b16bc321e0a6cd55ac82a3f18b112ff92e","d1a73383d5c310de1a7f7f520270aec31ac71b20b2ccd61fdc852fe23c28fedf","ddc114f4a901dfabc1c9c094d675341151332075e065ffdfbdaedaf2f6400a64","1672ca4b4b0916ef44a233c081428c5bb1acfd1429f1405b97a240aa08a60765","70afc385443fbd90d5057df8dcfdd810a18b6e5abb553d2b96a045cffc7ed8ec","3eab3f38cdf1b48533da9c351ed9f742051b60c6252331b34c1bc9a3d2442b17"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668845412 · entry 108e9186e8c5677af265…

Expected log hash

9f4762e1bb287ce51f4f6f20cca12e845b979e3d26d611c4c9b3dd71b059c0c6 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":"v1793707083193","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"Great production serves all my VPN needs","rating":5,"review_date":"2026-09-06","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9cd05f693341e0b011ded3","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 (7019aaa5828f…), 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.