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.

“hat mir sehr schnell meine Steuererklärung ausgefüllt”

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 3178600936

Proof data

Record hash (SHA-256)

82f009b2f93b6e5b806c857d4c7f9e0e1b30a1ec085112d9dd6fd4673c5d5a35

Signature (Ed25519, base64)

jWgSG55+6bo9JECyfKu/xtEiL0yad5q6KSqQmP9RvkhOlZ837lhcxWx4lMNT6iOTzvjmkQwsYtITCJoXCgWwBg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["82f1b2857fe1bd18c1c21ed9f33698b27f22d33f2df107b9a535b11a3860cf6a","cbd40cb824544d3c204ddcf78f49ee9148483d1894c93bcfbf0f3d463857a90f","766b97d343400e47eab1deb90700a4eedf5e793aa3375d080c3964507b4f20d7","ed8680f39d860c74d1f7e554f8bfe02c1dd1e0c7e288747fdac9bead96ecfcc7","072898e87e4f3ce38f18f7b771e77dc9319544a2ab623f17ed1fe494563dd134","a4773a0f0e25a8d9d84683ce8d85e0abe444943e174c3deb3ab1a4e02a9f63c1","6ccfe5d9d63e57768c1cd4551bb49eb3324a17cd8e5d52fc869484c2482fab81","e633aa811ec2e497432ab46890a8c988f7ff6e6867a05ec0324f0cff93b718ea","72164cd1abed1851e6ac8d5ebb9b4d914ffa4dcdd925b7f868ecdc7f83cd9f70","74f8af8ad49a99b53801bd41f6886166cb9d334646d7cf7528cb1370f9c93aed","6f393bec751d776b1383d4a3edd07bc7a9da0957dba8eaeddda73e24e272d993","03109236374994d37cb03d835f824eb739eb2a726edd95454da9d25cea9f6c11","7461bc2d06b1d6bef7145de580cb46d87ddc9fa66e098a96698a96372c033f50","f5776b4aea049b369136550a2eba5c5f94aeaa8e5ccb2b2ad336fc6ccf74ea7d","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"de","page":"theme:zasta/service/de","quote":"hat mir sehr schnell meine Steuererklärung ausgefüllt","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 (eee462924587…), 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.