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.

“Super App nur ziemlich Teuer”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
2dd8af38591019eaea02b0a4fe60bbbfd0b46f385c18ee78954940bac95ab971
Signature (Ed25519, base64)
4Z/UuDaBh9VvYlQt37tQKMPvDMhhduGf52oi+BK7arkjPOh9Lsz3zaZucaQ87DGDAIqsNb9c7RsoRxs/Uii2Dg==
Merkle root
4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265
Merkle path
["2dd74985abf8804333879fd33008ff3e1b17847b6bedeefe5de18440c26e4221","5272a99fc258b9bf8eba0cdab32548f87ab1a5044a1621862779d6168d9c7303","ded8661515838d6c7676823c8e4caf9cf90168ce8fb964b9339af1c0092c2ca1","228a1b79f3391e7bea91bde2e0d878fe617add2e9b93f052d61b268cad264d56","01edba8b824213841e256db53168398ddfb68ebe09429e8354106533b82acd9c","4b48ae1401f852f19968857d91c9bb9fc19da7aa70ff73565998281af6f21b11","d57b0a8dcbf62226252eeb13e089ad949f56878d8ae46a9247721dd0f95fd961","c91564805464adde0871cf41d47a4d496bc41255806ded424bca187e92ce80fd","afad2a59532283c879fd2b5917f6617c13cdf8f7981404b890698209e0363980","c3d8da89cbffc4527d4195997f3292a281668dbc65b8c89ce61b82b9c82ad6ab","a3b74b17f9cd5d406e0b7770993216956a787a080b4312b3087d7ebb01d83d77","1a39eb8110f60cca7b5d74c4b4e1ee494aba4bfcd1f4082136542cd2a427ac26","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]
Anchored
2026-10-13
Public log entry
search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…
Expected log hash
39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Super App nur ziemlich Teuer","rating":3,"review_date":"2026-10-08","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 (4900b1080bdc…), 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.