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 have it with a number of years now and never had a problem on my system”

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 3220367991

Proof data

Record hash (SHA-256)

20ce34671a8dc034e15d9ddab1e35ad3ab6f513f06602f732878b467325a2dd3

Signature (Ed25519, base64)

pPp8pXLvzTehkYIgeX2XjNOmG6Jy3KSoRXo+MuZENwlOsC3M4EPrngQwGh+gxBwPhTU6zE3TFSbYdcwqNmXADA==

Merkle root

8e481f891fa4a8f9e77c0279ca152fab4383b65a50decc840d9fd7569bdfbaa3

Merkle path

["20c7391983922c2b51e9647911dd4abb434334d730a63543f1680fb20843a961","b9f6977ce60e38fdbe1c6c4f02940e10a6c2927a3b6e1f7bf8b2e99f9fbe894e","6cd7f5d4468f1a4b351f99e6ddfc229649856ecc46dafc9da9c9b2a40c68fd80","ab6f5e98b157ef749ada5b9fc80689de6b1bebc1ae24fc42dd71c773bc5a5f66","9b7f12e6988c8c76e8792f6b8e5ea21d5eed21dc3c13236dc163716fa4e68c1a","bf1c892c03032de87b553620d7134438bf0713e8735a052b0905dda9c243da5d","2e77531f3d9ea7c8a340cffa4671a7271925a37e1e7db7c6cca0b7e592698243","13c1b4320d99c68e68e46aa74d06709058363e256c9a28965936c241813c6bd6","bc560861b038775003e38f3ff4f61129da28c25a84f97ba676b95f820be3e4c9","85fdfaddd759a45ccf9c514e46c5d5c101ac00936a3a2fe15bddc3dd69ce5b26","450f4f35f5548eab6a7f1639377fee5d357030d0291a1d4b5a0c14003d3273c7","e6e816e468ee57faede5611415d31c1593612a3fda282a14b7a9f7fb03672a5a","f12c6d940ab3feb9a920f8708be9c7f52b5aa4637463f6ea0927f2330e210f4f","391099ea13ca712ab4d3c0ebed9ae37f021122ce33d031a4f3442fcba2038ec0"]

Anchored

2026-10-12

Public log entry

search.sigstore.dev, log index 3220367991 · entry 108e9186e8c5677a60ce…

Expected log hash

9a2b3ddad9c3b29dc171a15554fc81f3d4710c01a7565bd2f28b92e7b639f6dd 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":"v1791776812348","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"I have it with a number of years now and never had a problem on my system","rating":5,"review_date":"2026-09-06","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a9d5f883cd9b1a016b3156d","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 (8e481f891fa4…), 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.