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.

“Großartiger VPN-Dienst.”
Google Play · 5/5 · 2026-08-13

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 3667254458

Proof data

Record hash (SHA-256): 05d3b5eaac8d370d0e4f00f654054a55fa3d55fc2b147f77528ebaf0a173b029
Signature (Ed25519, base64): mLTctklHegUO9KPVpy3gvcBqOlU5n1M0A6D+Sx8iy0Qx7VdiamN+SP8aHgHCOzCUaf++IzPU0AnMHGpsx452Cw==
Merkle root: 6198693610fc101ebb82aa1f9c089f7146b31caebf70bcf1f70b87596a2871e0
Merkle path: ["05cc2499004b4ba0544abce08d8a8d5d1888c0af4497b920be5f9f4e37bf09eb","a4e2a427f12a0cd67e605153101d47c8f8ef38d68164fb5c7a888ae90cfdfb47","00a9a4996d0589bdd891a0333259a0fd40fe9312f28487cfa8ed19d941dd5a44","47272390cbba0762f6e5629aa04882e50ce5d74d0dd8282f23b928c057100395","227cf9c0d67f6893786cc1dc7f40ce8db9b36a13fee899fe0f74d935fe90ba08","bc8f1fe99009abda648d9338d16681c9113fa053436fc22fe1d47adc9333e8d4","f65c8d2387e94f85968a15be30e7717f3bf9b9fe8f235d0a7204f79b1c43f722","c584cb674d96e6a30846ef8873844688bbc8d06945dc9d67ee4a18768a6db5fd","95bae7ae7505b33363b9ff0149bbfcc98c430149b7434130c0631c7889e0bb89","c03fcb76c2748b2224e05118f6b2eed89891021e96a35bb03d4dd3689831f839","341b3ea0d9b38d68ec772df9165156f87b1983bbc2fdf599e22662c790ce3047","0d9e6ee6936356ae6c967b3ce2cb0e42d3ff0d06b736c006024c56f32867114c","3eec96d57c7ea7d1841605fe068da41ba3bbf63a30709a21a9f81605afbbb44c"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3667254458 · entry 108e9186e8c5677a5e6e…
Expected log hash: d86cb752bbe06d2c6cffdf81a425ce2e1f7c967ab490cd5b4543bc4a2cbcf526 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":"v1793702805047","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Großartiger VPN-Dienst.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (6198693610fc…), 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.