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.

“Der einzige Grund für meine 4 Sterne ist, dass der Kundenservice überhaupt nicht gut ist.”
Google Play · 4/5 · 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 2681318538

Proof data

Record hash (SHA-256): 08157af98b9a435d91eeaada6c3359bc27d89cdabd86a429982a798d5d1e5d29
Signature (Ed25519, base64): VrIUQlAbX+JiUsJMLkTbuHtEd4VbRgdBLHMp590uVx4WJAKKR4mJV0Jj9Hwgk0/RYyhA5/PaOEP/rMUV5OeZBg==
Merkle root: 80545feed588a969110bcd2c8e526c8c2e400cad7348c7872c323a1674d2355a
Merkle path: ["08178e373e1a5ef45ba56cf23def326319b3c6d00ccdbf769b4a460423d13a1b","6674a0aebeafe3ccf9bda4ccab065f62352234a9fbd14988dd54de233e2eeefe","13245a5956ebb21773c582506c41504f3b4b3ed6da504b6c73c8404b92e76cf2","7c2afcceb3e28915503c96c8dc53eb5d5cde219c3a21d4bc9fb99412a0d32eaf","e831eec76dbc29f505419f3db701d2926224717223d5196ef565baa46f1408ff","6ce9b3ea9f9a50e7b33f4c913cc67a096866d196cbbba0f869d87eee5187fbc8","94f0474079819d722e31c6e661d268499dea795c86a8009fddb2e3b8d14dbfcf","e7389424c14a0cdf59ce5ea3cd9c29cd49a91c06cfba0653be377f22e183a7b4","49e4afff9f22023316c0c986d77dd9d490d8ce89e4692bd907562d15c5bb8653","e56085001975f3a6f907c5086df8319f97e2bd06a4834c0e63a38daf3da97668","b79e21263f593cde011e300a3ed53cf16be958a63ebbaa6590901198f98bec16","0ca1719d1668d120a6fce323cc79e9d42ad7abb5c9a5dac5c512164c0396f635","cf85b24fc1eda5aee2e6660fb94d01e1afb915d56f864de60a3987cc95b2cea1","8378d9d6ade0d6214a847a4a8145a9f89a0810e29d8d29962807c9aaac17e271","fca9ab6e6247b2eeb89a8619f295121cacecd7391ef0e06251791813430b969a"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2681318538 · entry 108e9186e8c5677a4bab…
Expected log hash: 663cb0c78a61cc964eb6f0e00407fec6844129fb0623d2ac072b7b2e4274054b 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":"v1788302168109","kind":"published-quote","locale":"de","page":"theme:proton/price/de","quote":"Der einzige Grund für meine 4 Sterne ist, dass der Kundenservice überhaupt nicht gut ist.","rating":4,"review_date":"2026-08-12","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 (80545feed588…), 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.