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.

“Es ist immer das gleiche, unerwartete Fehler, während eine App, die ich PDF lieb habe, das ohne die Fehler von Smallpdf kann.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0cf9ad450d1b06952f214f49ac34f5251e95cd2fb749c06787936ac15030e828
Signature (Ed25519, base64)
TIFTsFGGx3e40d2cBaI0+0LMOxKP68WBW7sRkv2vQTG8RktXkXhCZr7uIkAYvmZBre9beC55LsfnepwIc3j/Bg==
Merkle root
4814209eff208716b4535c2b0fd0b03895bdf3189545e82450cb75591e4887da
Merkle path
["0cfa8342af1b4bb8e94e76ca9f4606f6dbc4f9d2205240c6ac221df039cb1a6c","e14821973959c3723a201b714ed61ac90585d2ea4e72e47f7819b07ba5f282a5","bc123ea35a2ab56b8ca47343884f5f72f6c4565424fdc1e7e79660424d0fa437","aeff60bf95cfdb8fa6168822520ea84c8c819f28cd33272667277274e074cc94","d6c5d4ed17d71d9d93bd9f0127c3fc13c8a028d83b8a53deb30c26ccf0f17e21","c81059b150bb030a18c1a0c331ad2aafab98c1d88f248a79ddbed9ad44260a70","3056a827f2d47f5b9d23e8af2a528e430c7e98857f7c1b834cd05144400e01bd","82871a5138018659c66cd5347e0ce61fb18b3c97c65b4242c39bff5c169d6f3f","8108e93a2fd6abe04bae44399f87652082c03cf9db20aa5a01f67dbb76501b0b","ca933f1900d1fd8d480666ec9ab21c6c6366da875a086b6a5c369d23e7256437","ff23beee8d041d8cffde4ea8f96ff041ccbc4b997ff08977df76b53c67b7bdd2","58fc450d8d3ac4da8ac9fcfc859184c101d266d6f35f27c84cc4966e3f248dc4","5ca41ffa95430097818b993a1ba310362a9e5fa81d44bfdc04fd6a5a86897658","4222d4cb0e3cb98443733ef8f53c14d869249278d4ea410003cf03e3a343c09c","12d9d8014c44524a8d93c0e0f1440a3071b98d9de55311024d7d505c5879a63c"]
Anchored
2026-09-01
Public log entry
search.sigstore.dev, log index 2671265667 · entry 108e9186e8c5677af0ff…
Expected log hash
0d4aa038b3cd3d7cc8a3744c8157ddb93929116887b29b6be030d34102a7e419 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":"v1788234112368","kind":"published-quote","locale":"de","page":"product:smallpdf/convert-pdf/de","quote":"Es ist immer das gleiche, unerwartete Fehler, während eine App, die ich PDF lieb habe, das ohne die Fehler von Smallpdf kann.","rating":1,"review_date":"2026-01-29","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 (4814209eff20…), 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.