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)
4bd02bb036d542432b1f597414320ec1eb7c3dae388f9ec5cf2f8a70cb38e7a9
Signature (Ed25519, base64)
tZgePoGm3GTfzex9pjoMfWy6maS0C2rrjTr7ym7kTjMx2Gm8UoYnsNzaR4Hgl5HojMkUXp511dnGt+lqLqMpDA==
Merkle root
1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1
Merkle path
["4be718bd9b8c96d42fb02df4b7acdf68dab9307c2fd70741077fc5d2a488e234","fc08c40e27421eaf7137acbd05f45cd0ec5104aa6d56acd923b79a9c7e714014","f07d68bb33b0af624b3fdc4a7a18ed53fb32aca48f107e1abd2772c5991d790e","7d7e0fc4805349ba27f32cff922d3cc41b29fe23977adea396abf086887fee6a","1c86a90ae0776bf4e7fbc55fea7a012b1f5459d2dfdc35aa926a7b38ab65105a","4d9d8c15c832651869b99cda92aba218af227d93596440c12119985f9652a5bf","5961093ad5ea7b32c6578b12686e172ef2b7605e5a4a0a81cd1165d8047cabde","7e3ed558c9ffce6e8b0375d750fefa76b3f024b06dd38365765381747c12ebb7","63cac8e529d0f949dcf47ca7da009c573c79d777627c32fed72356fc43e008c5","0a78e756959175f4ab54b5aaeba33abc516cf390ecdc63475b55a39a5cc01baf","67e0df2f702b6977c8afd5b2e15cdc1d71870f928c9526ffdcaf399732267f13","994e6d7ea103100577c4cab0d6712d9ad97559bd32eecc5785d3b2bf668cc0eb","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]
Anchored
2026-10-13
Public log entry
search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…
Expected log hash
f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","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 (1da6cf8d96c8…), 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.