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.

“Es ist einfach zu bedienen”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
4034d75c4fc3ee437cc9dc475ee6f171ff7094507ee953315dc70a0506ade973
Signature (Ed25519, base64)
UD9r3qVSFL3SjhnRMYSj9HPCl8Q6WpUPvACVwUFid6xwatfd4O6O8uezkJy+jr5cDdVmrGkkwAycvzn3QpxXCQ==
Merkle root
8e481f891fa4a8f9e77c0279ca152fab4383b65a50decc840d9fd7569bdfbaa3
Merkle path
["4036cdb0b13a99b951ab507f0aaa19f6c26fa79392458215fcecff16d7ee55ea","cd3b8f58411986085f4d521d8a7b3ad80ceba741c73c05d619e95b54a0685af3","1d5b3710fc323471fa003a2d1d5da43d4bb629a50df503ca25f17e887b7e7922","20319b6629008567d08bfda10ba68b844fa62f5e4d5017352849ef5be2334a70","0361aaecce56f62a4689a7f768a1457b36bbedf0e465ed9e89bcfe6fe4ea8670","d8e5741309100f5b59e3886fee51151899865ea91f3e67dc00346e4aeb248072","66f04fa2d7b75a5cb98f28de1487646ee6354051fcb3c7f77c5e20521844cbfe","285633759d8a9a8ad2d0ad5b5acba431102bc5a934c3ca34b1e1782490682f8a","b3b206b427a0c480a52054ddbd4eb772bab072cb01100345b5409414acc7830e","5c492fd0267abc6dc11f9f07b6729fe2355f5e535baa1d3012b7f3779845c9f1","19729ab4ee834af8b30994fc038b14e05f47d8c538ac4e3ff36845f3cbd9e938","a7aabdc256e01976bf56aedd2750701f155d95355e126564b57f87590d7c57d7","f12c6d940ab3feb9a920f8708be9c7f52b5aa4637463f6ea0927f2330e210f4f","391099ea13ca712ab4d3c0ebed9ae37f021122ce33d031a4f3442fcba2038ec0"]
Anchored
2026-10-12
Public log entry
search.sigstore.dev, log index 3220367991 · entry 108e9186e8c5677a60ce…
Expected log hash
9a2b3ddad9c3b29dc171a15554fc81f3d4710c01a7565bd2f28b92e7b639f6dd 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":"v1791776812348","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Es ist einfach zu bedienen","rating":4,"review_date":"2026-09-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (8e481f891fa4…), 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.