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 3247957099

Proof data

Record hash (SHA-256): 28e16f0f9468cb589927178ffc48a45490659379f8bb74f13749c8d0b25d83e9
Signature (Ed25519, base64): bChZjPzaMr27x7/xbqqfZQIfBVeY1YIxvTA6IPYHjq/zyBMLN8V3GOhWMR2PbzddlbwQBc3UUieMJbH+P8JvBg==
Merkle root: 417e79c5636392fe3ad064f685f70971e5d532c1ab257f052022be5e8b8c0dd5
Merkle path: ["28e1ed5a7367bd5e65913c775bcc1b20caea951d9c8633cf894d549635e2a16c","ee80c61622f4948f4b99212dd17103803e3f5770e090e1994ce4d6388a9eacff","7d4303bc649dc9bdde412c26c779bec658ee331d689162af099415ef1e2f3adb","032bac295ade350f982ddb803b852572b254db5a19b16387a81c86433bd37950","de1454b62f6211f35fe882cfdf5783d86cbf18bdb5d5c3504c5b1f823ab43a75","016b4fe1c5c8214d8ce375277abe826aef1434907eb83a3f65bb0899e686f291","2347898b2a529c75a7f7f8ef8f918581f3871fd07cb513c28e4b3ec7e7a75f39","17878208eb863a02a53a58dc9fc576be7d78f75947055d0678f798bf35ccb6ee","13bb965f163486ffc52a9e4bd47d3e1ec24f913db6f7daf14a6912beece9012e","abe77b53b2ee7992d3a9185eae067db08d6633608195f75c6e3053a5b1a95d69","03012541f578e97559a1a490db3238dbcc3b9520ab1945d5807bcb1b6c6ebd9e","97cb88af2d1e7978a1c013f49971981dfc6f6640d100770066cc14dab4231824","a3445df7b332a2879d9dfcbad4af79652a13ea138d6afeb81448d347f1f2d128","57e0ae13344994ee6a0ba58ca5aa3276e7427d3c63abccf6f53bc322580decdf"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3247957099 · entry 108e9186e8c5677aa2a1…
Expected log hash: 86fba1d35010991e0e45c044558780825516b744aa3dd43e559455260fbef42d 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":"v1791946591199","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 (417e79c56363…), 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.