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.

“das ui zum finden gekaufter hörbücher finde ich manchmal umständlich”

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 3220996539

Proof data

Record hash (SHA-256)

02a56d92119cbbebb3ffe4c401cdfe7092f8b6e244ed53360760a8000f3d7810

Signature (Ed25519, base64)

2epC0IlBI6CO/BedoomF3go22D9HFL/+liBNrILyBm5qJDJf9UC1+AMC1wIhEwnpEp3zuH+zHl/a0Uuakw0HAg==

Merkle root

1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22

Merkle path

["02a3bc121e21935740510351b1271321ae18ef7eabbadce61eb0d019d9cf27c3","709ebd4cdf9402484ae064de416c8212331a8df2cc8bbf1d5a4f9ff424ddfa75","644b941f4b61ba7b59503ecddbd5644e6884f9a9f2e342b368b9f71d51ed9230","3f114e99606b614562d8ef08eb90a3e1394dcddd1b3f81a32382c2d89876376e","e57950c276b6de373be75c0a09f8a5a3b86d3188f40370ea0468f24ad57c24e0","a43b5cf78c40c1c4f2c49bb82c5436b135dacf9a8f05ba067cf946269cd0abe5","d1c9a55004ffb5ab504717b35da4f4890b4477aa06c8117b0461b586b8e8893c","48d5e94414ddfc57167b807aa47b4ec36126f37242afa0167f8d049330412e50","693279825eb075b254c9f8680028e418c0238adb899fdd4f82fd73b5576f8acb","089007a26b8a08c9dc3d9a9d7c8fee075c32f1897851b7c577ce5bbe5014ab09","4013b5e2460ef566687158f1fd705e4fef92694e6adee5c4ee856d013971efea","affe0a53d536804a9512c630206a4b534a27488761c0b34e6878dbcba4a8ae6a","bd64ca269edabfbd30efee623435236838862399942a0d08ad142d3df41d1142","8547750c311d384cbb1a945300d6b6fb4f4bd2b78af7177366b3baa4b4c1e724"]

Anchored

2026-10-12

Public log entry

search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…

Expected log hash

00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"de","page":"brand:audible","quote":"das ui zum finden gekaufter hörbücher finde ich manchmal umständlich","rating":4,"review_date":"2026-08-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.audible.application","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (1b0b408c7cf6…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.