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.

“Funktioniert auf meinem Samsung-Handy einwandfrei”
Google Play · 5/5 · 2026-03-04

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 2515144749

Proof data

Record hash (SHA-256): 6c7a5f35b4b98d0fbdc2d265266fd8aa711e1a2ffa9e905e768f7abd2ec22c9e
Signature (Ed25519, base64): XYhlikGpTDnoWSOegWrgheKqbGkXOOMW6ovDAb1ZRYLorYsLXjezvBxL3Mtlt7iO/27+WU6yTnhIc0ltf6kaDw==
Merkle root: 8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715
Merkle path: ["6c7a1825b6c46579f3f17c80ff16cb0cccf29f3af43d65a28d69fb301e719e6f","85f5fd73c865ca17a81ef18a786f95fc839e58c3de080836217c6f884cea1b40","4156a82862db8def77aab35fad2e4715c9dd1f6555fc3a1d9958e2a4cbbb7d7f","d08b112fdd3f3c2ff40d507592a9051a4a666adf7c4c1e10d83680511863a4f2","aa0ec59f2f6d4f248b0021e59f7a35e2c226415ffc346d9be32aecaae2794219","8cee6009beead09641b97010adffe5657e23a0ec2afc92c5ab19d49b70803764","936d9c01bd4019657c62f01cffef34c7cc648ca7753e0f67b812e8ff161c0235","4b51bb8b57f5161dd459358a02f3466ff321ef0e1caff172c1444a31215c27cb","8d1cc0334d02872655f18fd4b13b603ecda04e1b630a9fbfe04fc1ebd9cfd6b5","f4b545aaa846a5cb5e191acbfd8f1832c34ce980d00b8b62e2244b21dc0c52cc","e6800c6d8476b53d3f243fc9faf814f441793af74c7dd6a7c97daeafc05e6b47","3fd28282483646e6d175334fffdcf877a35d8aa4f4a3625c1e161c6067d9b015","5284fa1b0195183d338070f05d29e0d94229e3402263e30318e4f273240fdf18","95de144e054f717eac0f186a52d131e0ff4674147622cce8cff3d2611e7b6e99","8834edd87c11ce9424175f1744f71345038aee1c5b6f350a6f7bc2a49b63e8e9"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515144749 · entry 108e9186e8c5677a63b7…
Expected log hash: b6b79ad662332330e69c4ef135f6fb13ddc70048f846024d496aaa533f7f7fc0 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":"v1787137589246","kind":"published-quote","locale":"de","page":"product:acrobat/pdf-editor/de","quote":"Funktioniert auf meinem Samsung-Handy einwandfrei","rating":5,"review_date":"2026-03-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (8a6ad893af0f…), 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.