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.

“Die beste Authenticator-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 2514629481

Proof data

Record hash (SHA-256): 0a482fd0e6b7be0864837bf4205c993bfd7febd4694a05a7918cc913ef721a10
Signature (Ed25519, base64): GZtSNAAC7LNYgbwmzwzZRbNagxdCTgTtCXjBKUKdkZ4+JNIbCNq8cHknuyrUEb8TPQGS6y94c55zzZ8McaOJBA==
Merkle root: 3aa12e5b2bb49befac906908c9a841e9a421f12d0bee8acab9c1f906487adff2
Merkle path: ["0a490d84ebec2f208748ff63171dc4d4bbebb34b979f444fc807bee122424816","4d2b90503d0632f69863607472f2d1952f2effb75b4167487e7d204600817d78","b99d8eeff9175c6f63c02716bb4eed1fddda73df413ca637f33a8d418b660790","bc7ccd1eea4aa80041072921b251b64496aa063defc119542f7976611d918aa2","c55efd0c4fd19d1b2580fe773d5e9451e6c8003270b1a0efdff596f7622b6564","a4acc29227140b94cf6c516d07b0f3ff740de41815114cdfa7a826589a2219eb","3e0d0a41394b58756de1be89867e6c05d30d3d0abbb1b84fef237fa46683b1a6","525d3756816b90a2ba7d7dddd67732cd4957ec20e921f8f72cf53edf4e3c8b27","56c572f927930bb20accbce9bafbb59f251948f929cc21ae5a68e1e9f07e5d36","0580c700ff19e1e001bb81ce48bdc5195251dce7f79cc81dc5f8b20aed63c723","91463ff9493e95357b63477b7a161b58201954abdd86d1e2ed093c741272f96d","d30cb7a6ae21a107a9b24b39941ad5ee14fe94be6a418a1dfc66386f4621695e","499751eafaebbd34bd3075e397b2751a5b4f4ce58d0c2b3e5d8399f6706fd4dd","c3a6c334f1acc8c0b843c5d43c85ce54d647d519ab035a8287aee565097a2ae6","6099970369039e9ea9943621e6c4ddbe6cf64be652afb6debc70debb01455286"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514629481 · entry 108e9186e8c5677a8c32…
Expected log hash: d923130994e40329302180560c0ed5b43e4400136d037befc932b83910626f34 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":"v1787131980797","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"Die beste Authenticator-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=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 (3aa12e5b2bb4…), 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.