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 3140838741

Proof data

Record hash (SHA-256): a08d3235b008aa1a2f5cc21ad2e13ff0f95152d44dbc208a45bf29ea9ba7028c
Signature (Ed25519, base64): hkrc75DpuMZqW0fJgccuLz90UZfxE0Zs+xouq2dGqVGuMB0kTRcON/2IpKvMhbM9X0Ca17AsQCpVXpgMh8LDCg==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["a08b09d00bb050ff58cb0b5a48ac278cc4c0022e7d633a615cc84423d20d0665","9dffa19f94e5f57342b2e833786f50a8bb45fdb81f7ade6eadb220762458f43d","5d773fceead3982bd964235c83fd7673c1b71db48b217dd817af3287fa23d350","8dafa4f604a9988949691ddb2f46acb34a8b8a233e0ed5a4f12d72252e58505e","1aff16e71c79e3e44627bf342092ed09f1b976120075779b1f68a5db98ac6eb0","95a05e15a05a6463c0f0c9414577cc5c26ff3a194004d55a3ef7f66cd3540124","24497d4b5bd0da19c931be1ced5caa8c1c91b97306228e521a5ccb0804c021ee","7a375eb488b0834f433afa9f5ebb5266b5e19f59c468dff49d4ec807341ad6e2","db3dd3018f42b12afc39bffdf84ce93e3f13a3cc9e526a4acf2e31b0e22e5310","2ff4810b5cb50c38f3fdbcf8c4fc99c200f16e299bb1745638ddaa0b2b594817","9a44026153c1318f61a9285f0de2776d96a8fcbf6ce7f83af3a53fd6efaaf260","d185783a81c7716a5a5a44729493173b27d91ddb6e267aba0a71a1eaeec19f52","5a596d48ba69503b90d023ad33a47e928bac9c6ec029bb6fb09b632e68ef85aa","d4477c34f5adddf1a37719c473b5e22e5d24c5bd237b4d0a607b953cc77a4964","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","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 (68ee5f8618d9…), 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.