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.

“They also refused to provide my GDPR data.”

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 2776103867

Proof data

Record hash (SHA-256)

a6a8ad527de67d1bbb9aaf6b5da3c9163883f589ddc7142d7a7f70f236c6a769

Signature (Ed25519, base64)

hY4PU1Z497mQXXhKxCrEJI9yNQY/KhigBMGs4JSl7gmqRFFtnI7k8qLASrYhIGCVXyg2PVpfJRNKncQg7J0RDw==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["a6a5f5f379fbd991c993f6dec0335c22c5e93290552001af73393d1e6262995b","cab5c41b751c2edae037c694f78d9aa85b81bc140c9604afb11173f9950e7dbf","1ef4f972a8efcf5c7ee365a1fbfb66e22ac868f539b8ddb0132a627711cbe3dd","b5b60e80bf3538f9c01dc11b6b34d0c7173e40787f8e5b799dc92588c46067c4","1be8fb57d91021e46b6cecdd19b7963586c3189157f1050d4d69816f89923a9c","733246088d5b2edf5cd96d3a34a7aaf735bcfe951bd84f5270136363e909a9d4","15a414d6277e66afec2083f0bcc854b100b2b808b69e9a8c02dd9fe037b71edb","e569faa214e8d7f5554e62cca83c173e4fb981e71bc07e819823051daeb4b4c7","07a17d704073dc991e84e8fc575d540d747add92bee62f9bee9270ed472c54ed","953be7a1a1f37693f6f5ee1a28afea851618b5020435f6c44de67146daf04e36","af89a25bce2ed4803f1b5fd15dbc28d6876f2881f010749a95981429091081ba","24e450961210e2cdc5fdcdec60b2324d5b3e7e704d00d92186e8f725bb0670d2","e3a1de018ae2658686c8ef0556fbf43b0147585a01189da83c1927e13f8542e0","d3f9820ef177ffb6742d93ecece273e46037aa87afa8ee19fc7a0b34f6ac592a","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]

Anchored

2026-09-10

Public log entry

search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…

Expected log hash

2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"en","page":"theme:surfshark/communication/en","quote":"They also refused to provide my GDPR data.","rating":1,"review_date":"2026-08-29","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a92e6a0e3c8506464809ce8","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 (4dc0bd79ba3e…), 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.