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.

“I have been using this VPN for over 5 years.”
Google Play · 5/5 · 2026-08-22

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 2776103867

Proof data

Record hash (SHA-256): 49bbc052d94fdac96a1a9645b21b6a8eb15a2b334885359943bd5b783bd19408
Signature (Ed25519, base64): 9eYrrDyX1fefidDw502UkIiR6qNxSt5ByTkoqwqVsmSze/RbZo0jr9I71wnxc0XSpyyhXahX1FcQdq0riM+LAw==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["49bc409925b8d9f4e0294e7db41847556de06535cd3b4267eb901629252da5fb","72b1441a0cfe7de970a8265501ffa0cc3832877e7790e62ae2852a18a4bfb27a","e7e98274a9a33027804fc5a451519f75594f25e51b039b9fd0b4e2b0e23b151d","ef40443e21815fba9e22fc168b7c5c08cea7bc8e0ab7e07dd8f0aaba6a782665","806a32ea1985e5a0ef1bcb2a89a623d8de0e3ce9880bfa90a51b34b8c95ffee3","3abecbd31c830995f49ff052701309d8f58a3aa93e6d20f68d2666805e260d6e","d1f1ed689338adf08a6df89d37e6319661444af49316d7aade1a189c95b33235","f7309fd8dcdf60db410a57381bf64681dd79e90b8a63abba19d6ceea1fe16f11","e39e2c502d60ef42b4848b49c2175737b1458cf1010f03db25567abe993d43e4","184d2d0b1f5e1c003b53e161d8ced2a05398f025a90fcda9384c3eb45b87358e","b3cfe109b5bb9f243d20c2a271467917ea2dcd34b9b8849808c5bd9262017db2","5db6d47c594533280883338cc5dbafe319fd04677875292608d75d9596fea1f8","aafc4d7abd1fbd48f01758db3e1a1278331dd8c09b348c20be15802d81136ee9","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]
Anchored: 2026-09-10
Public log entry: search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…
Expected log hash: 2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"en","page":"theme:surfshark/durability/en","quote":"I have been using this VPN for over 5 years.","rating":5,"review_date":"2026-08-22","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 (4dc0bd79ba3e…), 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.