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.

“alles läuft flüssig und professionell”

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 2541942774

Proof data

Record hash (SHA-256)

2c8aa953d8df6cba561fe7acc46790ab9c9f44268aa5f8a5d25feb2c307bb8d7

Signature (Ed25519, base64)

QRhm8VtkEcVndz7s2r0DGDM2UMtkG2YfRVSUM+VicN1BlZBLmaKEaXh4QGVANEMmQ0xvQDdbZuuFIefZr0cyBg==

Merkle root

0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91

Merkle path

["2c8970596e59d8324654e43af879f8a6f0fb33ad43a05bce397e07abdcd3fdd8","44da7ddce71ee30da97ead1f5c3c444e3bafde33e77fc9e970a442e683d94514","285a496f6d17324545bc72714d78104edd5a1b5934989289650c7ae45a1984a5","a2f052a440bd3380e5d39023030ec712c85669599562e5b3ebf20b612efdf86d","3eea15f5c3b62b786903f29494fa4d9caef061583fef66d8c267fa8fe9634651","2422c57401157a9042805e0ee6cd8ada53c4d6aff32667034653793716c93c93","955e7ebc50294983098f37a7ac6b0c42b6a94cd8c8324870e8f61ec4710eb856","29423c4476bbfb23560410332ce8dca45989d3f45c0316fddb0ee4bc8d6003c8","412151f7a7f3a1f5008678bd322d029cd9811d83cbfdd812bb363fb9b2f37d08","3dfda6eefb4ac831955867cfb2ed1e51cd05547c7f9a8ed2e97ad47b137dcf09","a8752d1d2ad3dbebde3a87a74dcdce857dcba4a9cf51b30acf458fdcf13dbf40","f53de120e1726fe9db2d4486352b37fd1aff512fbb85358f81e6249de2ae3d7b","193dd7819b5cc0893cd3620ab02042348a20821938045af5a341e160ec2e8bda","d97c31a576cd351fb66ddffaddfc87228fbf93ecf06301d5b8aec9b37e0fda68","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…

Expected log hash

4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"de","page":"theme:acrobat/durability/de","quote":"alles läuft flüssig und professionell","rating":5,"review_date":"2026-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (0fdf8a945cf3…), 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.