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 3247835674

Proof data

Record hash (SHA-256)

24c4aa90d6ca673426b2aecdd3070a7bfd3b10c489c75f6bcd2262c246f6a840

Signature (Ed25519, base64)

2rGUIzIdTPFJBhUvkX03QhTdIH8dtu2uGqSy3yJXK2jIUka4H6yBXhH0b0IGzT05pRC/DHZOABpUgpCgjzYhBQ==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["24cc3aa67f3d9f7045599718b30c054ae4d391c4f2cdede5a83002a123d7eb85","0b892bca2255bb704b4974ba509e54e5b7c4e6bd9d610fd5d9228cf0d0c7b54a","7f37747ac65ee9a582a8e357d8437626f4053017f577e7af9da0daa41ef89427","bc1031682345e2a469ee57ee07140e5628501c7340f87b3a9c14d6bff418f0ee","bddf28f769c1561fdb57b901be580eabf57c096eec5992e02de635fad0841540","a02eead380e70e191bcca903b184746799c7a1c20342a8b8713c0f6ee20b6aea","6dd140ca35c39ee7fa450c68ee7c3e5dc37c2e546dade8800084de5a8c26b657","513b376258757361c116c1ea0a8b48b35331ab88cdb752f62a756163d297a4e4","0f29e5fdad128e3cf0a4ea99bc246f2e704e2da9f40172b202f5353496b18f9a","7a2b132917748c82f0f3df013e78a9b1ea81d59802357ae0ed170d5cafa2531c","cf3fd672f99fd3a12c561632c0bc7eef648128cb12006c0c959d1eb66b0780a0","69e0b278fde36472d775b547f81c80ab6a46676326bfbd973817b55dc3255d09","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","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 (8af5f2f3f65c…), 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.