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.

“automatic updates should be included with this app”
Google Play · 2/5 · 2026-10-07

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 3220996539

Proof data

Record hash (SHA-256): 200173f4ecc8ff4bea93bfed3876f771624eb54eea63e26557b628d7d3420293
Signature (Ed25519, base64): JqnL0TBXcrsu41y4SUpEqdt+xZ+5lGA7eJNQswKdoRe7nrrZj3yMh7rpA+HyDPK7sldYVGY4WXMDnD1OX0rVDQ==
Merkle root: 1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22
Merkle path: ["2003bcfd866cbcbbdbc77cb27a2838871ce3e4b0acd2b236e9442a1747b41bc0","611019e3d44eb191f35b87f540d1ecb4a07242040bd412df8cbf0209e22d0e58","6e817ede3c48440b11bea1671915e19c80afcf1ea291fb2b9c202fe2ba9f36f8","35761b17bc8a0586810b9342f28a1d228bca534fced83b678fa898f26bdcbcfa","25c711befe2aa8a555a7d929138c246c0a1ace0583a4ce3fa68ab797b5debd23","91299952bc38015598f849539145c192469e07f17c2aa73236e0dbf57b8ec1cc","acbe256eb4e9d0e447abe436855060d51d7f6d010626672def4ed151d8878f52","2674114a287233e21072278f23677b46d1a42c1719388483a2ba1b5b6c3f26a6","a07eb37061624f2524bc722b659e57198e18ab08ae0c214accc099702b46d24a","ac8d143b17877cb262844e59e77aa603d0122ac7a24d2f9cb4988a4a58aa5ee5","b95c64b286fd7d6a7e842c7f3bdb75225e5b731fc95abd0e0c7d50834fbbe026","affe0a53d536804a9512c630206a4b534a27488761c0b34e6878dbcba4a8ae6a","bd64ca269edabfbd30efee623435236838862399942a0d08ad142d3df41d1142","8547750c311d384cbb1a945300d6b6fb4f4bd2b78af7177366b3baa4b4c1e724"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…
Expected log hash: 00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"automatic updates should be included with this app","rating":2,"review_date":"2026-10-07","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 (1b0b408c7cf6…), 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.