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 Proton-Team hört aktiv auf seine Nutzer”
Google Play · 4/5 · 2026-08-04

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 2685152720

Proof data

Record hash (SHA-256): 0c664c52bda65aaeb06f55a1914fc3c340f5fcd340acb951b07d671aef2adf5d
Signature (Ed25519, base64): 0Dt31dQzkAobJCJ5bLEtRaQXqVbmzWM/RM+d+cC3Q07TgxRogku7h5t9vQQ77mBLG58xY73SjXfriPkiqQ+aAA==
Merkle root: 96fbff9333062c6f240ebc674c358d11c91e32417964c7b74e7a085ad09b3148
Merkle path: ["0c69fe5169d55f1e6f8bc2e2d75322c406a3c6689e1650230e2a1ede8da98bf1","9dcb54ee9c7c09f4de5b1a222806b0f6d048aecc81bba66d03fbd734468e89b4","8880d885f4111561d874f96e452e1c64cbeade1654aed3fb060733fce6deb2f8","9da2f0e5fb717c57b661ca8edba6b387d13ee343cecbc508f491fb1f925ae634","fe993150b64910e55c249cfabe98a9db00586f91158b463fe6cc365e82b4ac89","f6db44e4b0754547363286b9f31120c1cfa0512f5cfa87d78f732838fe48a5a1","b6396f5901993fc6cbe5b767e3b4e246e909ab166f5441eb0ebae651ed94620c","f2c53331c5a17ba920d2d394f450eec2709940acabe795ac070010583e3b13fa","e314a67fefaf76b8f92a8aa56ab130485236bb93e67c8e6e6481f5d474dfbb60","fed43698a22f926c25af35321acc9fff5db3cd87c9d6ff160237b719cc901ebb","7d02d43fb1928e3ccc029c215d21e63b8e4bff729f800aa5a9ed26d015bc3631","94f788ee88a3a5d0527e939fc2fb4326b3a860536a5801cfffd8d3c9817768c3","79a4550b200fde9b3a943415990b5226f73c8c365540528c8ac5ff0f8d838204","392c4ff19a61c37ccb09c095c4cdb0c4164ec867c437a8e3033cfe3fe2edd46f","60ceee9d6856471604c29353be774f78386c382c47f03b784bbb0ee7fd843f1c"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2685152720 · entry 108e9186e8c5677adce2…
Expected log hash: b48044e152c7f9f6bdada08baa42518b66cab68608ac945b90bbbe4a8f1ed0a5 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":"v1788347082424","kind":"published-quote","locale":"de","page":"theme:proton/communication/de","quote":"das Proton-Team hört aktiv auf seine Nutzer","rating":4,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (96fbff933306…), 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.