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.

“Very easy to use”
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 3140838741

Proof data

Record hash (SHA-256): 60dfd389cede915b16d7c255f53326e1479cde57773e8cfce0d0870d47d9d2a3
Signature (Ed25519, base64): mgKMHFGzOaQivKn1Q97alUQXiXDvAjCMSHixp0SweUC3EAUn1hR0cI5I8VM3Zde7UzjuYZ9ZQTdanmg80j3TCQ==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["60e1af0ba659b488444c828ec1ae6395ebf32e5252201bf602542281e14754e2","166473094e7cb3844f4ac2ac69636895d4614e0c95fde77a14a3310014e9c292","544e9964236cff03886c96f5548c64c97c403b21f9360ff544d97fb46127b06d","4c1b3646c7ab44535eaeb021085c157cc05cc733f41375bab36105585b016718","dccba2b741f8ce901a860a9920bdae94ee655afbb029d4e9c5d31d39b2cabb93","f81ffa7f116607d1e17704072ff4b7d97ef0f5079977c781774b96864047bcaa","4a678e204fb97bc7fea32742efb37e052926aa054e41ba1e63dab45b0e1885f0","db8a05c9107d21d535af2d3b64534910d4d27a34140af10c4cc5b09367509064","0e5bed31c00914f10fab73c0a1065367abfd84246185b5d654ef429a569413f8","39d660f0e456bb2c52a0ab67a37426c96904552bdfb4259b70ec75600f0a7f08","56d68862d4b49a1aeb6a09aa559f42310fc778f38c79d53bf34ecc54b851ce80","c6e64e12e0b8b2f5eca9fac3d3f3899ea445ebb78d97caa0a799132e0d17d541","71e82fca1bf2ae48cb6a9adcd3ce0a0d0fa2dea7d80e41cfa26b2813f59587ef","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":"Very easy to use","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 (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.