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.

“90€ pro jahr minimumpreis”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
4b3c9a23d0ed836d89aadab713af4d5d803af7258f927f1c1206ef1c07393623
Signature (Ed25519, base64)
CNSOc2FE9Sg3NrMKJlGjES1LCiq5EM7t/a2/22es5W4u1bxUMiVkpCRpocmBv0yTkKDOAgGvOsAuzP0SNanZDQ==
Merkle root
ffbc979c8901fdf55f43c5151768b18a738fc1c271c9b2dc97349c3fa8ed35d2
Merkle path
["4b3f39f4953487d53ccb1a3a3821493c241165aced3631755ff9d662fced7e9a","61452b95a0ba65226a62dc35e0ca655e5afe9d854965b4ace49907c325f54dbe","21fdbd51691761f9fb02ec5e1c021eea63c85954266878d234dd64b37612f4f5","0cbca0cd101a3e02baa1835b3e155ca3da2ab9a90212ebf090c0fe9ee4499787","b53bc4715b5788f9ba7e4d8fcbbfe63ca6275c30d77b1f840259536c3680c50f","0cfad3fbbd65c317099ccc4266c7dd4f466f0dd3942ea1c1d86c5824ad6d65e9","c89f0b2cc1c28b51a76f460037b8f1b078e08e48d5319f0275ab42e9edf44791","51ecd3b3cb26e0f77ecf2d91de08de7cadd0339cc8fd34fb8311270296490c28","fce5b3b208bd7e6235cfb37c347fd8d296a5c5c7f279a394ce3474dd05230177","3f107b2807f170b6f35bf804fbd86ff43800e8d5e9922a17772f0651cfaa3772","88be0192ba1b13ed14317710751f2ad2f82b2e1f6f9c1ec81a0a8d8547ab4684","45fc2238455aa65e3b4c8344b94c4c6c999df482a430c903a8e0496e105cabba","fbdeba35a2e566aa48ec8885bea50296aae01205515c3657aa205e182ee9d5ff","2f35432083547a52411b4b8128ab118601abc6a6e158a38894add0923255dc0e"]
Anchored
2026-10-11
Public log entry
search.sigstore.dev, log index 3199173952 · entry 108e9186e8c5677a85d2…
Expected log hash
3bc66074c7b0a853326bf5ba0590a111eee6455dac5c98c791c22eeea9a48920 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":"v1791689192448","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"90€ pro jahr minimumpreis","rating":1,"review_date":"2026-09-14","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 (ffbc979c8901…), 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.