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.

“paid app”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0ac4a7e43f4583aeee4a7de1a01b8bd15fb0d7237cc8525abea33b96c580ebb1
Signature (Ed25519, base64)
yGW/cV3xDy8KdH19SIxPGp8i0hHZu46nF+VIP9AbYXB/fexCTwS77nKwH+nzG5FKRNIiQjErwSyuY/h2C5dkDg==
Merkle root
6471d9991f0d0aacdf442d5cfa660f2886071005e4c3d26a992a3bf38f0a7695
Merkle path
["0aba5a9c24196c14f1f976b2b1d8302c187ceff4cfc292cd357d13fba91f1df1","8fa2e88a8a7692e269d4b2fbfb4452def460c8c212f5f77353cb9c8bdc016cad","919fdc2d26cf98bbb63809e6c793031a8a06bbf1d8afee591c861a4792b17f33","30f5fba0eb063a3acbf5a970568e6361b338af759196531c9be14e9ac75df92e","8ab42eca553b38e967a33825350ef97c03adc44173e648710ed2246289a86951","c18d8d2f360054f39a7d2a5189ec81c5021052c203dd41f9cc7e93f77d584dc2","a4d1d2f481bd5fd59541044db149189be4c47411f8fc58421a332c7f5700ef3e","8c6758c2d92c05622e272c8415ef01595a9772cf4713f2a995a2297c3ae389dc","9a1add5fed9e4bc3603081517ae623a66ff130caada83e52ae2cd783e72f72c2","ef8b0691c8db614afb1395e46c51a8282c3bdc9f1ba42a9414e19db77d2c6196","244591618cdbcecf52d02980965107e183669b9ec87e3601c5ba666ffa8e2f4e","3b30f3c4384c8f930b0902f0837c734e0f4d8aafe820711619a733e25c756cca","f3f4254b899098b98c7590d670f5fc0f992a4df0218d6bbab4ffa5ea42255835","930b7277e2ba0f1d182f8e7d0daf885f1526e50b29d8791024858ea5581e285b","a2fa997090d23b1f352d383369eee4da3a6661cb0956969a3a99ec5f82390d95"]
Anchored
2026-08-28
Public log entry
search.sigstore.dev, log index 2621523249 · entry 108e9186e8c5677ad576…
Expected log hash
644ce1c7a13e9edd388468f8e29bb74f49a15185930851951709e16eaf23744b 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":"v1787888369667","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"paid app","rating":1,"review_date":"2025-08-07","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 (6471d9991f0d…), 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.