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.

“ist vertrauenswürdiger”
Google Play · 5/5 · 2026-08-12

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 3666413656

Proof data

Record hash (SHA-256): 05cd20ba04a944e7b5fd142fb8293697c154f9892379c999eaab7c1db3ee4434
Signature (Ed25519, base64): YmAisuAlfmUN2xKQ2hf9qjMVEZgf6qCIF5tFLOn791NRN3H+G2rG3AYqqeIZppwb90spyk87r1xV0s6CDcGECw==
Merkle root: c0f36ee0335bf71d5c03ca59b0f191f950cfafcbca9602c3bac8b2183aa81d49
Merkle path: ["05ce0ec93d404ef852e34ad888b7ca537737069944adc506a9a1ae080f3990dd","0fd20d3dc07fdb68836c12f6329ac309d7cd8b3c32443add012c027efe8a8528","1304ae13a6b8640852636151693529f69824d053afde90ac23c67843db682e18","a261b06bcf45cc2a90cded8bce146072e9128de764e40e439988635c18016ee7","e68edbe5745064f493de1237244a76819282c9392295069379228bcd590a9e29","fdc26a1f797249535dfcf24834c7305294b79ee38796a1fd711f0e48bf198ee8","f3739f525df313156e8afc15573d586ae2436c5f01e6666e8fd7ebef8b2871e8","c1685ff01f4bc66b5936ebf0bcd5ce432a409fd5187aca9a7eaeae39900c1048","bef259e020dfd4eff28f7331b2519c2515205a07b329be58bb142a779a7b75d6","c55f1032a06733c14d9312180ea7aa8c9d3186558d84c0e94fccb23a379cbbe1","be5b621904c3c26c98d16d2cbb89bcb78a3e53c55fc14229bd5b5b77f1f59015","927de500e960266e9b12c9524aa43fa0bea81f1fe70a1fb15680bad0fd81e947","b51875ca42ff32753b93a043ad0f198e3e1ef2fe1aedf16283da4cd1b4b1d542"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3666413656 · entry 108e9186e8c5677a8e86…
Expected log hash: 0d2952e2a04951edee30f820ff095b505511cde698e520c69b8bd5fc03c1eb96 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":"v1793701189085","kind":"published-quote","locale":"de","page":"brand:proton","quote":"ist vertrauenswürdiger","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (c0f36ee0335b…), 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.