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.

“all on an unlimited number of devices”
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): 0493b106305c8cdbbe12993cd35d23da4e62f792740f337e03edf57f3e8d66a5
Signature (Ed25519, base64): I3xrW+CWiJL8aZlGzwlzbUYAKNiqs4MrPIiVyLibgdkEOHA9Mm/7f/MlOJMLpZhiieH1lyOOSXa8zRgAooofBQ==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["0494b5ba4916794b7723cc9b8bcea4b7bdcc87f5784cd3980605b4533240b213","e169daff0fd03f18d05ea8d44e98101d137494d952621d0efe853bad354cb2a5","398458579e9690db7d2c910da276b8b5ecbe40172d53fa065b5a2d2bc48ddc4e","c2ddc1dac9be6fdfd4dc16c085c83579f80a42f31f8e75f6ce5c1cd07ac60805","1ff18cd29a9986cc4f03f167c39670747a9491dce09ca52aaeaacfa215b20952","1771e1b4906c112ad924f80a5769ee1d36485832acf68cc35d1b4e4e1f00dbfb","1ae93fdbd5aa5aecdc0594d388ca3d4771aebb4a60b9b14ede559d3e1d3c23f2","6cd5496258a568de67fc966e13226265729be30ae15c0a4f6c45fe2429f7dcbe","cc82126100fd1b8c5adbcff894cb9e6d161aaf78cfdb7f1e0b2a2189df40bb0d","0d3a96605cff17f301f5dc0d7605b097e2542c3f700ceaf2eb030313642660f6","e9213ada7e329b7ec9e91b5f2b11c05e30a6622d2bd072cf7b5757a128306902","43121300a82da93d01b3fdc8bb17f432c227d8a918d31c79ee0d99fa14f29075","e6960377f92ebdc1b41fb37d3ed0decff1e5fba5b62ad653e7be0f8408d1c6c3","e66299710f80b56c392136748910ac59d79a991f3e479ea8a96c5c23e200aa78","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":"all on an unlimited number of devices","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.