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.

“The application is very easy to use.”

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 3305112589

Proof data

Record hash (SHA-256)

13fc929561fa908dab6427c6d759275a4721642b03cc85be13d1f0aee47b689a

Signature (Ed25519, base64)

dmvv1KuKnD6id9PWdKIfefjEjoR//PZ1oo3O3Ag89FiG0s/0vQQOsagT9+lupIaXrvjlw2rI5B22gSfgXRZZAA==

Merkle root

55117deb4ca8d37a678ae0a073fbce195c324ce5f9e871ef967256fc521a73a1

Merkle path

["13f9014403c14a9bd0444c007fb07ba123423b2f222e13408cc7a0261ed6a7ff","5eeaebdcbe3d7cfa75071706529b26cc4d323d5f8250f38eb293c16ccee1b4d0","e035ab5793989f5fd9ae92b93f4ece0d2c9d21698d1bfe21d4701f25d2d82309","816e5ea55f82e56451c1a2512bb0b6d979b41b8e3fc446589fb11ef0016d9092","ccbf2e54e604fe5d04fcee3582b523dce1d4d604c30c489e53db162120107ef5","35e1e7ba2756e65589307c8f773aef5ae57f3e2ca38817128465a7ed6bfcfa1f","5300663b22497a37941360aa4aa1ee0df0af9d30269cd0507159b2b4ff531148","8d60781415fce3d2876ab7ae54471ea0d3d4fee63fc9c077554aa3edca72f410","bc11eda8f68e401df1880603ef07aee13fd614ea240a27387400d77cbd7a1cec","b3fecc2fc44a79c9e986979aee6f4cc8f8e63aa77d8f03cfd37a70ba76e4b55d","535b6abf2fb18dd8b74ad7937f857e29bb5e4346d9f2703c382f726f073ab41e","0748f9297c4c0a3720af131f4ce2567ebed633099d330f968f516c11a8f0d4a1","31d8e181a29f89115c8305b83331f09bbd2794984e0617d17f9e5a5ff069102d"]

Anchored

2026-10-18

Public log entry

search.sigstore.dev, log index 3305112589 · entry 108e9186e8c5677a5aab…

Expected log hash

c2e7db559e4d5e5fa814daad663a532ab12f6caeac67f681385f7a90ad7f4355 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":"v1792292562366","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"The application is very easy to use.","rating":5,"review_date":"2026-09-04","source":"Apple App Store","source_url":"https://apps.apple.com/fr/app/id1391782046?see-all=reviews","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 (55117deb4ca8…), 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.