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.

“Hervorragende App”
Google Play · 5/5 · 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 3667982630

Proof data

Record hash (SHA-256): 05cdb288b070b78cff2eab5495aa9f2e4b17029cd612b01e1ec6517df5544eae
Signature (Ed25519, base64): eFzhYTgmfk/M9kyqZJNzHKHLwLZUbaGTuMJ9pGt3T87HFIKhJZg6LMDEjU+hB2ohDX5/2QukfXH2ML1ih+ytAg==
Merkle root: d73d08690811c81c8d5fad65324be4693c01a2aca1755d426ed86660151bff23
Merkle path: ["05cf5f081fbc9bcb22c4cc2bda9a8e3af8cc869d49265c7bb6b04ea7be7a2c42","376ab1cd480931db7fbe56a2f2264d1470b80c88055b6062ba019e84ce7e1bd7","78a993b11f7b78bf7c08799ef64b01151a71e4cf9b96da7fc26a16b443eca982","37362b25bc579f4a491cf42e50e3711cb5e39af20d53245a690d4c0bba0d887a","1dd7d21eee95abfcc70392b28f9348f914a657790ce476886a03338939e2ae21","f02be1f1dd437dd1016d7e91c9c24594cf95d7e9ad3bc88e035bfe1eb22283ef","f54b47bd1b34f5176bc6f8be901997b5fd00be3f0923f11dc305942f97813809","3811bf75296725daa2d0d8129ac8844201cdcc0874207752b4be98f3edf4141e","f30509f36f8df296d859b7e5537abd6d61dcdcef24510ef22b5d953435daf8ac","2951e0ef77df974e410912f473ed278fa4be30bd85b81d8577a087a273550c25","7006f776def9ddfdac83382bd6282fbc38c85ebc80f7f9fa65de47d0a6522fad","4d9e8e4c864e237b344dbb0a541d9f67cd70b96deceb3066c40d8aadf093ac18","3fbfcefbe1233089f918cc9e7ac6d44fa339f7ccb302cd07cbcea4200db9889c"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3667982630 · entry 108e9186e8c5677a838f…
Expected log hash: 5182f3d0ae634550e25d5f8f78d800f39fb338d1b74903dc2e1fe643547a5358 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":"v1793705160515","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Hervorragende App","rating":5,"review_date":"2026-08-12","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 (d73d08690811…), 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.