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.

“Großartiger Ersatz für meine vorherige Authenticator-App.”
Google Play · 5/5 · 2026-07-18

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 2657086861

Proof data

Record hash (SHA-256): 0b67188f70cca8031ffc7cef90819d7255ec42ec3d63fe73148c7b538a6b9316
Signature (Ed25519, base64): wliEajZmIM6fr32TMjtckBx9MnMjn9U5+Xn9PaFURw/vZy6EJKYyMqK8nl/BXI5FJNHsKy0ANPamhdce3U8qAw==
Merkle root: 82972b26bec55a4dadeb51e0ef4817fd240d012a15b1107cf4ff41b6bf857f2f
Merkle path: ["0b6897716719beb670b1ec6fdd78dfd3f347a72052bcc0b2d2e66cab3ca19c3d","810f6d03dcc82beb8268ed710b764cef17584901fc8bb947b18138939f708fc2","d132bb258136ec4f7a4928d998642e3383924712926c59ae3dee5504922c2825","41b9462f2811f04249d837840836d1b959e5cd49a329763a3a772ad1e7e3d5ea","c7b20ca2fe7f5d5f4d97ee76a9493c8efbfcbac7bbedea6c9e697990f9f11123","8250abb2e7a0c5875f688b701f99b1c925219139668287b981a2b413da4cc6fa","e34fabda6107e034b965eb6d217565a19a255ff0791dd2b786729e2afca20954","b54f2723529213283d1fd1bcee641976fd1f8aadccad2c84e05932eaa641fa2c","90e046ba196dc351351c2fa30670d51f0dd729fd185d5203fddf61201eb448be","8fc7c57e4a4ff4b600a6746ff7c613a4f9ae9b1d15c3fd9c69200c1464d4187a","c01c413f1eca2f2b8f01b6bc720381e368a84fca420e26e68607f25715a380b7","bae19cb10ac53f9324ae9d701f1e918fc75e9e05c7a57a3b9c634ca6056288e3","6b680ff8f968dd80e3ff74aa3a067ab4e5daa264cdad81a3262bacd1ac87d56c","73fbce4f3a295bbae478090c5a38fa056d3343dfc0fd9542392d2ae79d50f95d","f4e711c857ea1ba2d5a944450f4184b26f960d0cb1b2b63658495fa9a35aaf91"]
Anchored: 2026-08-31
Public log entry: search.sigstore.dev, log index 2657086861 · entry 108e9186e8c5677aa85a…
Expected log hash: 260fef646429d420c2862b4a127a9c4a79609ad273de18fde93cd5e796c16b27 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":"v1788142990944","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"Großartiger Ersatz für meine vorherige Authenticator-App.","rating":5,"review_date":"2026-07-18","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 (82972b26bec5…), 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.