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 new interface is incredible”
Google Play · 5/5 · 2026-09-02

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 3163352270

Proof data

Record hash (SHA-256): 31fc03a15f8c74b2441988ffa589e9404ebd683413191d3c28c36bbc28836798
Signature (Ed25519, base64): DcyOwFUN3dIkOp8m2yhw77tLIsKXjWWmHuU3gOP2EQfon+okx4LUp9GPyijOYeX48MIjNtQaiM61QLM0mpKPBQ==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["3200bd7898fc5fce1e42f8b446c594dfb0effd43c06e66a9c8789099439f989c","0264d13c26a76571252bdcd569cdf854efe4006f8d153bc95a11c77583c694ff","1f95bc85a0e17476187dfd2cfed68139d6fefa71d4dd02b40972e47cbc5da37a","d86ab81b22b78287e102859685d10f63e1bebd2f2327d15ef3d38dacec2ecadb","c3bc25ae69852a4cb150b46d6c111fe517fda22f26e07fda37b61f50a85499fa","17a6b32314a9b4fb4856481407b175b68491c73b209910def95ef97c15785a20","db2281cc78d2aa06a47a6ff4cf1e3a200ea98456d8811dd9f3332202029947eb","08bf0ea7c24504c0bd33aefd41fb5a326b2610893b26ac3af43ea5f930d89332","d0e6bfbfe33695deabd33e2162c9935f0a8a54556afa5ed3ee0a16c61989a6d8","aec42ea26f7c46491908320690ee56704ce584dca869a05b17a92c9724aa9e6b","52247d1945c52e1a50e7a26311858f9933d443615a0478399ceb1a7fd8beb3c7","438fc2375d6ac60843ffaeba15cd4e6719ab0c0a256a5e1e4fb5964975c2e131","b2e795b1a28ca13f7663ed8f62127f0cc32efbf6296671f3d7800b760642c1e7","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"The new interface is incredible","rating":5,"review_date":"2026-09-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (784ff8fc3c42…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.