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.

“Satisfied with the 30-day money-back guarantee.”
Google Play · 5/5 · 2026-04-29

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 3221102617

Proof data

Record hash (SHA-256): 2f77b8df73e33a7e4c5f6eb47479b7e48295f0430ae6ea761a345bfc2b110e5d
Signature (Ed25519, base64): YUa4QF6tlzQu0USkRomDlDjCaSGa1xFPdA5Gm46jqZmqr4F8VkhAEBRj4Ow+D7BaNPDt/E0EcdMj5ZaBmTB7AA==
Merkle root: 0eabe705d05480191badde562bf975cad5c107b96758d59c47efce7f02d55f90
Merkle path: ["2f776b1422dca7236fe471a65618487efca16587dbfa625840a1f6702a2c26e1","7fd20dd3f1b1ea50cc1e31c0d8f32be5a6890931c87f194f49ed03c970ae8db1","f95ea8da5cbc30efd74d907a7c8fddd84c683ee2cd8d9ea92a5ddcceed048551","e0551d49ecf93b71943a72408e20c7743965b45eb698bb448570de9aefcce321","ae117cc320ef97b285cfb71c682066ade9e9d5f24e8ddbbcf757cca5c3863265","c7d8f66a63f83db360384116960651c3091878be526ce97a9b5e9da8fd4f855a","c5946f56a79040b9269f49fd765c871be242f5bfdf56ba33f35be12557342b6f","3b44cd6616d3774287f1e5e284a5aa69dff8fe6cee5b3c092641b36bebd7bc30","2f306f207b87c737960e4571b9ba86df806f86ef78e865cb09ef234c4df06e06","e562aad4cee78fd2361974036cb2c97921c6ebcf01d6bed35371f772463756e2","bb5346326bd1583cbea79f8ffbc17156a49dd193093659b8c13c36550fc41b63","810c5cb82398d2660a6533f18336c7279d089f0fdf61010926aef1cd4f72e8fd","77b2b0d1c988b3add7b1fbedc3ecc12dd0cda6044be7bb06798825ccc94efd81","2e4cbc8181996227b6c5ce6cb00a4128780f0a2cf8618660b840716e64b4286b"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3221102617 · entry 108e9186e8c5677a7ec1…
Expected log hash: 701a9a476cb781c93a6209c8572d258b6cbf70f6f15d478bab1da1537af9506b 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":"v1791779915538","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"Satisfied with the 30-day money-back guarantee.","rating":5,"review_date":"2026-04-29","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 (0eabe705d054…), 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.