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.

“Sehr cool für das Studium von Wirtschaft und Management.”

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 2681318538

Proof data

Record hash (SHA-256)

42713183f4e5ee3e00530b500a0a175a9747635129afdd06ef5b6f3cae84b6cf

Signature (Ed25519, base64)

XN8R3Fabq1XQa+7GWzWy8ru0rVbjM1cfa6529aOvIjKfZO/szt771rYw5E2n8eEJ5II2a6oXEZzrc+SZj6PDAQ==

Merkle root

80545feed588a969110bcd2c8e526c8c2e400cad7348c7872c323a1674d2355a

Merkle path

["426f6877ec231f680d2d800cc039ed28b4292b7caae9c9924fec77a2ea35a82e","f2a382a140683cda1e1125c072dd3f39383ee49cc05cbdb7395f4aff0563ec55","d61e2c0f5c1f1ab52323f59f1f14c619c40aaf7a5a94ff403cadcb49b5213052","dce8c96c247eca764f40c9085b5f8f983c8aeedaeed13d28b1d9eefc28cf1952","92d141c2ff91c82ea65b08cf3c46337ba41436d9015197e7416cf62ca983c929","341be67cc9f7e0c9372ffea35170eb51203c21aa37eac573eb0bfd652f8b59b0","17af4b6f6278d38c98c99c96b567bcfa96c02207d7327eaf3351e6afc71d4a6f","fbfc223e746eca3ee3b727009d370c5475671f6fae823617dcff01d1605da49c","48f87eeea2aa0adbaf19f8ef087eae500feccac44e3dbe68a9123a196ae73dd9","82c829750b7cbc9831d9a209c7414a27f551b4e68c1708170f1a8dcfc44a7add","f409dfc2df498bf6dac55348227dba68809cfbfabb3e3b71918ba4d1bba58616","d3bc389941df874cd2571f89997ce8e7b19018ad59895eb4c789269357ff0a2f","4c6caa0b9a68721672e19894d208c3f84efb61f2da83a9ca4726c0d3f3e91414","8378d9d6ade0d6214a847a4a8145a9f89a0810e29d8d29962807c9aaac17e271","fca9ab6e6247b2eeb89a8619f295121cacecd7391ef0e06251791813430b969a"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681318538 · entry 108e9186e8c5677a4bab…

Expected log hash

663cb0c78a61cc964eb6f0e00407fec6844129fb0623d2ac072b7b2e4274054b 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":"v1788302168109","kind":"published-quote","locale":"de","page":"brand:banana","quote":"Sehr cool für das Studium von Wirtschaft und Management.","rating":5,"review_date":"2026-06-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.banana.banana8","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 (80545feed588…), 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.