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.

“Hilft sehr beim Auswendiglernen”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
2d6191a757349f719419f882c9ce14bce536aaaa07833283a74e0ddd577749cb
Signature (Ed25519, base64)
qLCNZSsZ8Yginr9gImBWmWS5DHSBdFFo772T6ns8EOXF+VhW/WLdaD4h4y9Wf1xBIq3vkJGqUaCQ9r3OlzEuCQ==
Merkle root
a4d47c2a34f6eeba31e2744fb1551fe9a0e34820dfc152f1ad93a68b24759c3a
Merkle path
["2d57af58bebca0eb8272710246ebf92c670eac56c716d4b1379e75334cf51620","fa4acead272e4d3c55b6cb67c5654632abec62dbf0770779a106086280bc23db","89de27dff68a58552c227fb589dd213f1cf673a240fa41e4e99d426759c08688","d5525ed555589c4816dabfa6a051e4d5559f86a66a2dfb2e3fab4bd97f71ee8a","ab417313f9b6bd45d094a0762bcf18bb54798466b762e4e03323b775a390a00a","e2d8a39a455dcb49ae49581150510f615212506b6bbe728ad7d8f2291a40875c","06602c5e8f1d6cab5e05744bf650cec7ea34c4ee74f5028fdbb1c5f16f0b4ba6","6c4283a05eec5c30516dc02c4a6d9261a86a3bad2aa3ca289c11ebf86e8c5115","465807756bde1c1f25c4bcff8c36ecef6cb36471f36995d4ea1c6776f0ad7bd9","19daa0f89ddefd045efce6d96b7b6254c685b45ae7412d0ac14dba4b0934a8a9","5d71dfb799af9616515551742ebf194eca9971ad386cee090b62aeff22bd1d8c","718239fed8057dcd9c8669511115793713c3c27b1e9657de27f870abdd5c7bee","0d7c4faad4992f205f2c1ebb2b0e4b1b7e9d070f1f77d3f8d64b80626c324f46","35108299fffbb5c1a0d86f074b5805457d73da5ec7c848a19bc9a928f6a42a99"]
Anchored
2026-10-16
Public log entry
search.sigstore.dev, log index 3272274666 · entry 108e9186e8c5677a2724…
Expected log hash
d56e71820b4c8c62b755e9f6e3d2b624566d12db6dd1606e99ef55749400c387 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":"v1792036997995","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Hilft sehr beim Auswendiglernen","rating":5,"review_date":"2026-09-16","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 (a4d47c2a34f6…), 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.