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.

“It is impossible to enter a new activation code for renewal.”
Google Play · 1/5 · 2026-09-01

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 3163461995

Proof data

Record hash (SHA-256): 2e7f73695ede6035dc393c393945aca7face22fb34dfff3ca2c7c575db81fd59
Signature (Ed25519, base64): Zitd3jG8HNgyCg0gwyYqnMv6CYjr+OFj/SAfzaiZsgPxjGoxrd/TBQTo/wYWoTHvQ9RA2nCvIyNJgqaj7s09CA==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["2e8062200a3dd0c490025228cde6494b0f6997a612ae88966a32758a9bc7ea3a","eebb3ac8174444e736411d167fadabd838bffc7e2786193a055dad2e3dc9e305","5ce9864da0ad5e32e9a6c210d9946941ff627daba47e3ce30bd7b0eeaeb1a3ec","bc9a47ba1dd8a35e4f9134d444ab924ea39b3dad4f07ad2ebec58d2b5a9375c5","b2847a293099bdc7e91a4e58d6fd2b2073cff14df3d88b2feba0a9f3f71590b6","179b5b875cc806e337a09f1d5286fc4599d981a4ab801309144cfb762a8a2888","0c256dc3e6498a8624704e91d8df692e0b3e222c9bfb58154afec13fc40ab1c8","921a7ac65f4700f1a031195df3dd304852ed54a021ba1fe23856ac5571e8da8e","5acec9d187314dd7dc13acdbadf193406047af5c1999c3a836f22d38e40e282f","23b7e5f648a7da6d53c3cf3cd1a434d5d63fe6f0d9dac1cc7156a166af3aa755","1e4012b8636c58947f1464f68995e24cb30bc48a7f2f69e43ba3c1229de58b57","ca914761c020d6d4c41f330c4764f3390122af15302d295f2d6dafc486124bde","665774a1192b73721b453ccc4135f39652e90d0c548e0465aa1a009bf210f3d7","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash: 1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"It is impossible to enter a new activation code for renewal.","rating":1,"review_date":"2026-09-01","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 (f2dea3193623…), 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.