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.

“From my first use, a leak of my data on a known site from 2019 was found.”

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)

bf24c5af7d6eaa76b0a3d58bf63502f165e22698cdca69c04f020362669c5408

Signature (Ed25519, base64)

ZCqXNsVjX2wyh2Xk1v5o5RWbJQq07LtHuK2Cqf/GR3QA+aC5YGf7pq3ER4CoBwrAnYBtlMb9MIqCnSwFca+YBw==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["bf216aac2aaf13b63a0322474d3267beca146ee92a6709f7437e2444e05b1f3f","58e80a5440543f79b55bfc139c0ab1819f5e50644fa5eefa771f617e63e701bc","a115aba84041f55b49b6b95026c9cd40019784b9a5237208a2fa3a9a87ad3b58","cb31a48b01e8a4867feda3e957a553ad46d7cd93692a2008ce2fe41f2d150753","ed086fdda3ce35d69b8efa532ff515aba0b77e7f296eb07188ad926f9ee516cc","1cb464171eed34370accb824cff94b3550887f721b25699783a038c03ea3b2d2","4316ae55acf9236fc6d79dc96aa0101396020f5f17c6ab96c20287696674f436","f1ac35f2d0db3327af2373ac2bce1a0f2535ddd84b5d0ad9397b4e9d7900dc84","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":"theme:surfshark/billing/en","quote":"From my first use, a leak of my data on a known site from 2019 was found.","rating":5,"review_date":"2026-07-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. 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.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.