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.

“Fast performance.”
Google Play · 5/5 · 2026-03-28

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): 33c542d1bfa69a74e22f6f74fa2f0b4991a0797ba632b4fd8cd8037f0a4b9f7e
Signature (Ed25519, base64): R6ZxWx1ktBfzq5WouTZS++oBvqSlH6eriSbNmoxXUWaCVqaU+eYIuSDQESZxS5ltqZRNUiy0xNTb6SAHGTnACQ==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["33c6cbb0c1d5cc8828271e1f1121dbb729f920e66837faeca4053a7b9165d921","3f1980f6c9167a89f3fad05bc2573ad9f00ffc17dff0e415249b46349ad999fd","2ee59058d55d6b880fc3b49557af20af3a1d4139cb334ddd968d520bfd55ba4f","c117295b41d1c41da0be6b3c514296fddce1489ab3414e0c3f5ae37520b85cfe","47637a77e421c3ee8d159bc45002edd451678efee77289493fb65225973ccbc0","4db600a261b33927cef4f190424e5460ef5f20311d2f69b73570d44a070fa147","93efbe45781491ac429a799aadc570910572a071218669422aba85f3ce49dce0","f487c9d171c04bd22e2c8d4a9b037afb3255c4ee132281603073355eb75f9a9a","88018e04f6fca08000f0a70c19c1e216dd558c66eaea184f320315e41fecdf86","eacb3cfd2f4fa5e6de7023d92e6dbbe1eb58569804d34cc020d48440ddce74f9","dd9a2b0b97702237aa58eb2e839b17a980432dc29845c7fab4d204cc87f50048","cdc9b547a66b32bd7e3dfe1dc71a93d8d8fc3b198c1af0cc5d7f17b576402dde","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/delivery/en","quote":"Fast performance.","rating":5,"review_date":"2026-03-28","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.