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.

“I uploaded a 500-page PDF to use the search function while studying with GoodNotes, but the OCR conversion doesn't work at all.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
09b04ca5b5eb196843d6f654b6e1e7665e8cc9a6f1eeed4bd426ffff645ab387
Signature (Ed25519, base64)
fDraXDzI9neDUyivwOXGjLjOwKPcYYAwrGDUQUZjhTTT72zGzFXq6B6EzU4dd3fhGuiUUabr8rzz/rVhS9YkCg==
Merkle root
a5d88709ba617fe812c94d00606cf582d21e964e3014eeed21e24c3822682a40
Merkle path
["09ad5e286c7c131990b66d3a1688f670a63ab309fe81f5dd9b144602d965b5ba","1ba06d5a75b71fa350a9a341a8057b384cad9c5981f228c5deea08fa646384df","3565d86a589681aa85a0f46e0c882ebaa969c5b2ece88e0f660f6a29cabde320","accb070b6b5480b2580e57bd6883f469e8a7b705c9c82bb4b9762d87cf7f685d","7caabc40160b9df9ad9d29b0b6b0bb538e872618f97c33892d2ffa7c46a8598d","8f534547e91ceb0c744d9425138556869948a3c90901c133fb8b86cde12c0d39","9559e8696ef2bf909b1d50f2b29e22aaf33213a388fee2e6eabba36e84b2e6cb","40f9ec61d9d0410a4a49b66ba0941a825ca90383451bf950477e02017347553e","51a3044737a65af266a7d85cc782a54b31e7df5ef76d9dfffa983b99c6e73d85","f2e16f57a9892eec07dbeb78bce79273e2662e20b5810bc808241b4e79dd765a","23b11cdfa7d4c9ec55287e1683565266f583df3c5b5b4a9c37905da9d2f32bd2","0d90287140c688b078bbed5856c891d1e5d8314dfae0b71eb7981526e520adc5","7b48dcfd125d0832bd7f5a9c76821165d9d78970ff8029ee47dac7ef938d86a3","aa514b327a9841f1a8b8f1ee34db42dc890d9a3d820327c14f52ced1df128a39","33e990fa14b58c6037d59a973c8935635ce911b2e7d4249f5e781ce19fe14ee6"]
Anchored
2026-08-29
Public log entry
search.sigstore.dev, log index 2633155673 · entry 108e9186e8c5677ac961…
Expected log hash
59d0143474a5e64649e00814367477c4772bdc0867286cdc45867421d3d54959 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":"v1787979141339","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"I uploaded a 500-page PDF to use the search function while studying with GoodNotes, but the OCR conversion doesn't work at all.","rating":1,"review_date":"2026-01-16","source":"Apple App Store","source_url":"https://apps.apple.com/kr/app/id1485259500?see-all=reviews","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 (a5d88709ba61…), 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.