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.

“Bisher eine glatte 1!”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
738e80ba82252463dfe2b7203f257a199d8a2ce791b20cf0699480b94a645253
Signature (Ed25519, base64)
fepVIomnpUXmIjcR4DGdpKMBQ5YKORVScdJBvqHRBklW+F+wTfLWYTsCGMsJlES1Zx5oFKf0GCQZ2EJRF4gJBw==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["738f6af4dc3e4b14def2864e403848edf33fc09d2ca2a18a37561d7bc4e1f0b0","6f5db1e504887e9cd8999bf0d6faee44a79d63ba8c516efd457b03166082d9bb","a44e4c75f761606181ac8f57f61ef9e229bdfeb4d19b699b848049329e31ab41","fdd49ea5180457193df09909104fb61575ef4d07515424a560042c0885840663","1803a9f3ee9ed80747151a832106417d8bf6e262559cfc28ef8960e59070454d","7fc572b2190c3600c5b54de4a4aa79b7de0ec20667ca881ff1db0d0cf0e5a6db","214c13b299c8409bdae43c6e5c86f41f1b99f2165676cb5debf5e1018d019d2b","fffac33ff3e5fda0c884774b1cb0c2b785b7bcd7e94aaf9c77fbcab44ceeb52e","3fb6f0ca58ca3a54ff5ea9c3de5c5c3bb16ce7e8c7e1b91ce58f3c1bb0f9e9b1","e88cb832e83a8cfa3d07466c1d4656d34330b4e1b7aa4e81562620ff81ea6272","34889706621385a3b77481342901af55e0c9b40a18b5342ae3351d8fab5cea85","f1529d9d8d0b27350c2152458e297d9406b31a0ee9c50579b35f35e84480df87","3fdd31064998e61048d534909957bf68a4f9bbe35571f6d185756d8acc2a5420","aa4bbeb87247c2797626ab02a549451da6dfce4dcb854a36fdcc601e3e788772","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored
2026-09-21
Public log entry
search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash
d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Bisher eine glatte 1!","rating":5,"review_date":"2026-09-18","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 (e299bf38720a…), 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.