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.

“Die nützlichste Funktion, die aber schwer zu finden ist, nämlich Text von PDF OCR transkribieren, ist bezahlt.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
144b17ba581aa1b645660da7e382e33303dcd8fdb51716dc53758e3f7babc9cd
Signature (Ed25519, base64)
390IKJu0+ZO9hVucF1oxxmo66XytDVEFD9uCYYJ9Q/9iofxfLIpkLZhkD97BJjlkIhGmx6/oB/TRr6z46/2ZBg==
Merkle root
fb09dbc79cd836b1d85124e5c45f889f4a8cee2bd2a4f93da34de8effbaeff27
Merkle path
["144968ca8e6ec8602edae685c07764b2fe1014e5cf42a7302518385abcb07883","fc10a0be819c8fa6167d04fcf13c9d15b1fea2bec0e9f56047f3f4390d8a7420","ee436d412128697d2b73cc8ef6acdc989eaf13c21fbd1913f409d7a0bf05d52f","2092d7f4e1783f11fb908fae7f9c2b2228c9e9f42ec870232be3ce9864a560c5","c48a7a20f257e16abca2c4f631a5f4f13a959587d5ebb66e859257e6974eae4c","c9b45b254a9b3f9e23d71489d1cdd074c12f772ccaad554fecd1d6a82bee31f3","150136b558dbb658082aba0299f2dedaf8c27ad4dcd39dd14a5d00fa5d6e282c","9882a37f5e1e66a403855b31306e636bf53eee201a1c66854106280310d64adc","76014024d1f96e95354ef8bf59a2a333249892d363ca4b728d721b62588b192b","eb44f67e005bfe476ce955a6a8f815762af1ac19f1737dc784b19aaef12f92cc","92969b0d126cfdb1ca355f068a61d2e1f58258258fea9a698452ecbdb91ed99c","b7026620eff1301525ef293efce182d3113aa9218dd88b19517675c383f2d8b4","7637c7d2d718940e0c1978ddad3180208467c8a8d14b3aa539f41f8406f85974","598e586ae65f83870b6b56d7041a4a16432f04a124836b885f1eda80da5ea2d9","015fb6cba9f4a0c5e2fef4dbf7406ea747b003f2d75f764dc48e74713a28c269"]
Anchored
2026-09-01
Public log entry
search.sigstore.dev, log index 2671985937 · entry 108e9186e8c5677aee5d…
Expected log hash
21d04dbed3f9dfa348b1c2e5bdd0c177d7f26175563f32c871f3a55c22274c31 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":"v1788240889164","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"Die nützlichste Funktion, die aber schwer zu finden ist, nämlich Text von PDF OCR transkribieren, ist bezahlt.","rating":2,"review_date":"2025-11-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (fb09dbc79cd8…), 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.