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.

“es ging super schnell und einfach”
Google Play · 5/5 · 2026-09-17

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 3248278454

Proof data

Record hash (SHA-256): 431e82db6335916e29b9c5ce19f3c5230953b8951a5636109c8c1e35b813e910
Signature (Ed25519, base64): P8cn04VQJ0IATxHN4VVy8F35L6OijmC7zKXOV/schtGIqXQw5qvQOu7IR4Nl7yC+vk4gGN8DTTbZzefFxQ3kDg==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["431f23b7a08feaefb0776f036682192a76b2936bb1bce9f0c2afbc6139f3bf58","635165eb11d1b8b847f3b208957a634a66c9309e509139772b5dea2a638db40d","1cdc52403e2ba927ea1e41479c7c09a8d4b3b0c0d1d062d7849951b331c9258e","a8baec98a31060f9a62a1bdc4c1a1e118bddfe7f4db0951c1bf8d275621133d3","6dd0f0ebc744116c605cf504b9f603ac8f0ed03c959e2d522b20dabfdf6cd058","90602731d067d0c143b949162ce817e79a68120e463a028612a3f54866b6983e","2f66bd4c4729689abc0654dfbd2fabf04b5bcbbdd6a59813b11f221598766b2c","ed94375f924fa265ffb0c6bec721717f2ae70a049d76dfa3d8846371e55a666d","d9448fdacbcfc6a952952e9c96141b2cd7b7ceb020e0c93d5b5bc737ca1aa2cf","10e5e29df1314521e4262c24662f7523efa48c8ce8914d3cd0d149fb3e581d62","4c89d2c3acb11018b90e95114ad50130d3b070bb6755f880c1172b93924d4a54","3fdfbce5ad21b885f11747a0e764cb6dc9b91f78a8b6101f3123635e0a22e27e","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"es ging super schnell und einfach","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (81db1abd6b6e…), 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.