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.

“Ich habe gestern für ein Jahr bezahlt”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
c178487428524325238d1ba059e105723eb44fd3522cc575c12db908a5e5b319
Signature (Ed25519, base64)
m5myFx7drYedidLJSCJR89kdzBNGP503XbCMxAspunCI13tLKpwlETddJw7YiEl9drkTW9DsLz7nSlIFdjldAQ==
Merkle root
c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3
Merkle path
["c174c9a6403749aea61e7c43daf5d65019268e1328318e3ef276d4d9b052908a","fb7fcfd1c9c5602ceac76e22ee9f558a6a65ed8131d42f5af85fd06dff6c563e","dfa166e06c43b6fb4a7eee49d7bcd58ab74d44945c7fd538c1153c7e4af75373","61f819157db5529094db8c7ce210ba4c8d2bb52fc703943c63c48dc4cd342eb2","eb535d26a545be701f08460020e1353c9fe92d74e8d4de0825a33bac124ba670","c5b0c0e252807289d7c63b8b9bea5eec03a22b65d1b48b7b98b6627c2b5ec302","01db6f0947c8a80dee4a76f751720327d97c45401885519b1fedb2b2076de9da","c168adfab28273e5ad307fa430cd0744f1d0acc3a88f7dcdca38bc02d290ac42","2b44fc472411035dbfb2251c3060db6789455efb8b45d5a3b781c8eb5aafbe44","16c3fb8706b4104e6cf69514b05eaed43a213e9e5186136313423a76a8aa0b8a","8008c60ff147fd15b719a7eb73e32c4ef9212961034bb5871a0bece57734e8aa","6bf5a48af1d78cbf35b873294f418a912d98d15029ed19f9a94a6680f1555dd6","784409ddab3be140dec350f237cb0e0185a25a3b72a80e8c9a65633caab6188e","7edfc85f9440fe7fef8e7edd6f1372271982f006f84b94693306aed78930ab32","ea816c3f8ecd74fdcdc9c068bf36a30dea5aa6d104e982532f9e8769ceaf3fff"]
Anchored
2026-10-07
Public log entry
search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…
Expected log hash
5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"de","page":"theme:vaia/billing/de","quote":"Ich habe gestern für ein Jahr bezahlt","rating":1,"review_date":"2026-05-22","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 (c53673589b1f…), 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.