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.

“Das ist die beste VPN-App, die ich je benutzt habe”
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 2593655674

Proof data

Record hash (SHA-256): 10525716ff1d2f5c8486b4e1f98ba4d8368f10a67320421ce7fd1b5ab86956fa
Signature (Ed25519, base64): 0oVgdf24oFOj0d0/Z5vULU8TtzLHlAdVHsojOqmb9M9J27NklfAz1RGqA0c91XfF9SoiKGyqhDoHpeU41Tz6BA==
Merkle root: c62de506c31e1551783494d165965503c3e555ed9c56fc9a8ea54e7f423e7596
Merkle path: ["10522eb47156a7933c1873dc536fe15fb14882e6c740c2ad683daecacdc6df87","c17ed565eb6a33cf8849d1014bc74c2cd487ea05d1c8e1dfc69096da9d363d86","9ee244a20f7c13d07ce3de7c85f01cd5f24dd3951722601266773e7fe0a16784","8f60e21fc75d3f38171649763ba0d5272081716b343f014c38a14cfaaba19115","11e30f3149255f3832b244cc5bf25822914d920eb919f840fa315ad6a366ade8","5fc883b8e65a04eb7b5264f975cf6707f22cff53f2f149dcc1267b9a67f15fef","1d9cb7eb003e7fad20a6b382f6433452ea1f03a814fc78c8cda7fd44aadd1845","82bde2ffabd838bd65dd3d6bae534e94da40dcc90700c59cda62bedfb542042f","ce014aaa4d9f8752937ba2a7b55213735bd23c26fb4284097b96b78491f51edb","182946edd1496cf0937b5c609b25c9b86272ae1ff3407f8acbc98f2827faa9c3","3beb9e2419791c5f4003f107b8df3f9b8cf220c2cf0d95e0ea1059ea797c67bb","b6589eb019b8ec6f8ea7185a580a7050e41156727907c947ee3b1e0b10499acc","db5340fb2ee7032cf2ca3974766493186bad902d95690478526151b5708df380","4062e3741ff43f0051f244365acefd9f0704d953d0107616d7f339f1c0341e11","4bae54408dd517469b74bba599857056a81c7afc659bba4587745154292d4af2"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2593655674 · entry 108e9186e8c5677ab61a…
Expected log hash: 40a4bfc261f324e812428cf4f8faff6ae237bc17c25df830e6e4b8788ce99728 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":"v1787710495154","kind":"published-quote","locale":"de","page":"subtheme:proton/quality/vpn-geschwindigkeit-server/de","quote":"Das ist die beste VPN-App, die ich je benutzt habe","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 (c62de506c31e…), 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.