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.

“bin sehr zufrieden”

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)

03051f787ddd6aa1ee50fd0b4742fbbc60946e10cd2dcaf87159ccb2660bf2b2

Signature (Ed25519, base64)

OgrLdyze1VP7IufK+/03nBU//63/4geQbcvgEciRVfPFtsC7uIju2rWMtGYiHidjIbURWntaByv14DFeflC7Bw==

Merkle root

81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451

Merkle path

["02fdd195ff0ce1cdb8ac5d6c27170a848d972f3c8e5e5d807046baff3110c22c","45457131ea8c8840e681e476c907285d533fe9cfcb5a5a74adeedb0a2e6e5209","2c7923451928afc9845d96b90dd06184736c4ee9fae1ab4c1b802fa69d5eafe9","0ff99d955f24a2b39097aba34b77884c095be7585dcc47031414ebe6357fc13e","205a5de768f3e82e464e79805c97317a76579028541d7170edc691310b22dc8e","8f409a91dc2866287e8abd1b6768af9c43438add2b272e83a6086975b23d58ab","ae39a892b5377b3f9be7d5b8d3bef505f701706e873ae64c59f6d87a69276c2d","4217230bca35b784521957fc390b80954ecffbe3e5fa8789324494df575a0973","7131e82b44930ae1a8f52f0aa6193ea359d9dd419e36434651a122dab9ba9d2f","80c1b1f10d8bf284e2787ece94df09442da637212ce15d57f52e414d13828c35","9008bdb00edbaf075b061c2195544fdadfcef10f8389a786f7422f7a7fa7a2d9","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","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":"bin sehr zufrieden","rating":5,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (81db1abd6b6e…), 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.