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.

“and today I don't have premium”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
744993bb9a3ca58265ac55b7697a960470e28d37b3f847289298493122314cbd
Signature (Ed25519, base64)
GpuzgCoINFSff7Vn+w9NJGg40PbrY4ePw5+s/gxyXdbkgL1PCA1B63VVBk+eB8yDPyu7H3aogUng+YBw6RC7Cw==
Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path
["7448de3dbc756b2491d4df59fac0ab6390eb6ac4b9bd9e9927e15e20cdb853cf","0b73569354737b436c830633b20855d12d1fd3be639a2e96362bae9c3de29e7d","be782123e05a80d8f6852ba8a8da58bdbf9504db449067576dd44171093dfc9d","de5f9b49279d9ce65093b473d461d4d602d642d35526b53ca91c1f5477e662ad","a5e38dd2fc32fd56549af9d9efe903327a0f448be47a4e97f9766ef252126862","d5c66b5c0c4aa407192451396b948a1dfa7b574230e0e13ebe1c8e208a5e806e","9bf9672a14978a9cb8e65f2f85b34d80c2630548af02c515c210370226db27ac","a3fc8fd6672a353559305638d48e80e05ae23cf13faaddebe35293bf9abb5b48","731b45a7269644597eabd80ab929f05accab88eab354194d908673a5013026cb","4664b9e1716770f7fa8d7f44159758ce0f7e52f6ce32aefad0bbf1ea0c72f440","16e76181c9e0c3e4486f4b7a6922be8a933d0a9c0c664aeebbf3709042661f8a","f8cfc666649943796cc64798f4b6be7235ebee26ef544e99b42bab2155b6cbad","8b252735b283ab7584d9f6925f08ed38c911c64db001463eafabe5061cb6f9fe","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]
Anchored
2026-09-22
Public log entry
search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash
bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/service/en","quote":"and today I don't have premium","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 (b9a08f9d6d76…), 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.