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.

“Mr. Gregorio helps me to change my primary email address”

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 3668758047

Proof data

Record hash (SHA-256)

10de7adc17c6be10c9ec8b32c5c528126034c66c85f2df094e5b462ef0aa68e1

Signature (Ed25519, base64)

xhPNktoWRO4Z3pdfDqHyyDyjIqaSQJH10t8TzvH7hvv7D6KkK9Es1ah8Ifriof49M4EQhRVuyeklKrpVqHAuAQ==

Merkle root

91ac4838fb4692cf2c714cf22417014bde85e9d7b2ac488478d7f5ddac3886a3

Merkle path

["10dfb837c544134e3683cee5b71aa15884cee1182522f4ae4e23f5c339f06edc","542235d690f22b983af1a9831696342221b0b5a50b86110edbd5f1c1131ce766","2bd91c21e9a8e6730aa8653f754e37647b4bf6fe213ff925a74dc2e453a3db3a","07556754f508d861d9617d3e703839e2421ef7f61a3dd287362501ce35112529","512d1ac4550da952cd8605dfecfa443a28339d180751e1ba0e3817fc642cdea9","a693a6239d1b9d3a7c7acc82b539f3778b36216c440629c7ea9d2ceba1167535","a1a303c43571b206a4693d4abf423a58f39c6592439c52172612839a703430de","13cf90658de56117d20a46c0a8cb85c87080a0225402cff7ca3de923432d7697","4cdfcf9052ca2784c21fb9f44ee50310caac1afb741db46cfede218039a120dc","efe330c24d06cb628c5fe94abfec88d327da5b18c2d6fdc67884e9854cddbaf2","1651d8e3c486d3c452bdd71e953107d9b464d56bf3b709848f8dc1d78473aaed","d8b72c6653070b1f720e67e6522640ee452ce3cd37e767054e3f4480f6132364","c3025b7778a1a77d581203e23f18baf3b8e43309007afd7c7abd033cbca39cbf"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668758047 · entry 108e9186e8c5677ad50f…

Expected log hash

69940c768d826da6bb4ba0910028f48fdd278e42d608b1f11b1cf4d36c54ba55 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":"v1793706887256","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"Mr. Gregorio helps me to change my primary email address","rating":5,"review_date":"2026-09-04","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9b04295bfc6b42054c4794","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 (91ac4838fb46…), 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.