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 am very impressed by the measures and feel secure as my daughter has it on all her devices at university overseas.”

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 3220562278

Proof data

Record hash (SHA-256)

0f9721fbd24330c5b2d595ad28724b07692ec345c7af08321e74e850a102ce54

Signature (Ed25519, base64)

WzUHbuBaiAnRjJriiYvPCxZrjeKDXs6AUrKoGA938bp0S5RRutPHlFHF30D11CGFF5srkUmGpW54hhKNZIuDDQ==

Merkle root

2d214bb14438515f4bedf5edd9b00a6a5113a016ba9b9fe8160d41d7e6046722

Merkle path

["0f8699be15bf7006fd2c9695288eac130f1e11e7c385f7bafba51faf4002b646","36fdb7b461444eca98f28d40807692e3669e7d05d1a0659a94dae2fa807e2e7e","42b7b545ee4fcbb65b0ee5870f2095521035c8e11d6dc74721c830e625e38dd6","2d4462cc8f1a6e881aad645300e46c464dd33fa6cae48a9b6dce111e1eb31260","112eb48a84112031068fb6881ebdb9fcb8501efb2478a60c39cfbaa8e9de3e4d","d4fd66c5898975c28800b7a537fdf8efcd954d5169f1df25a778e59019f9723e","4a7e148cf6546709c05f594c20f54d51a1c76d12d9de5f2e6aef4d3b2b1c4e07","66e0a5ba4b1bd1f93ef8744e0dfd40a753c1b71bab13c735c21d6ce724368d07","86f9495e320b942ce4930a4d5a3b26c8b3f4385aba05df94ffb88a88b4b804e9","da6a83700e6562a5d2343083915006750e77e4b9161f4d7712b838b4c79cf708","3cceffba1780f717cd2ce38f156f4aacef37125986da7d1cbc55a2b4370f1ed6","ebdcf4f2d06ecaa7512b4e82d75b0892ee788e93cc90eec4b56bdf4af103e975","c8e78357eabd343df2a6d1ad8a9c122f986bc772443ab896b1e0fa855f0ebd28","35ea2df06612b261a549235c4e62b3e1ad1789f05da56f9ca671421e5071b72b"]

Anchored

2026-10-12

Public log entry

search.sigstore.dev, log index 3220562278 · entry 108e9186e8c5677a2753…

Expected log hash

13907aa3d3da271016c4b5e75946c4440692c6b4e1684187b965dbb983b157f7 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":"v1791777669660","kind":"published-quote","locale":"en","page":"brand:nordvpn","quote":"I am very impressed by the measures and feel secure as my daughter has it on all her devices at university overseas.","rating":5,"review_date":"2026-08-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9563e819c1786d46008e5a","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 (2d214bb14438…), 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.