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.

“Easy and effective.”
Google Play · 5/5 · 2026-09-05

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): bef28074ae811ab98e103778dd88eb4ebdae3327f555c1658484ad672ed57a55
Signature (Ed25519, base64): cg2H9Fn07COLkuQWitETEbpfuSmh1yY15tcZqT9myqvb0v0pOuV62KYkZUSb0j2wQCjIJbGqWxI9U52L0ZHUAA==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["beecd5c0d340a27e81dce482a7ada7b5f5f2bf3bd62329ef65e4297e35b4b5ee","9a1a952f8847a0bd47942dec679b0f791eb711577fcc5f013299c95462780bba","368e8446c67ef8885a2e325f5eccf86a020b0209eae55fff1285d38e03c5d199","0f2a61fbbcc0b008151928b01447c9b9e9724b4b00aa369d56a5626eefb4f66d","66e4de6036ecc84e3ff9440de276594309b78b2b9c89e056fb78e3977cc00693","9cce0071f5d3880a173142495afd0c6d373d0bb1beac15d9f22ca07f942a04ed","2b2e22b5919e820be1262abaea7a376437c25717efb5da89788a846fd628a061","6bd35282712dd8b1705bd7edba7e9433d7963a7efb26eaff9fd9879f8eb3f9e6","334e82c14dba4f561d73672fe53cdcec55584bf6e8852aab59148485585555b5","cd6b7dc303f763b6ca32b1495ec24db82ea5abd0cf51a9e2b65daffbfb3be581","236e12f121dc5563da8d93f46b49021412549cb97fbdc8633266b36f4ef634dc","ff50dd1d426380e71f5bdfa424955df4d07dd0816370e18fc84eebbbab29d5d1","c9f1105d4f80db6afe27e70c9e1c7fa8740faf4babc45eaba315edf5ba35bc67","6ca8568b4e7c7e4e3b794231ecbe4a3822994a26c5f3f7fd0671946fee25f414","66f93059eee3676095d6925b7cc2fe3b97c348e816a4d3ce47c4b00902d3a227"]
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":"brand:surfshark","quote":"Easy and effective.","rating":5,"review_date":"2026-09-05","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.