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.

“Horrible, it only allows compressing one PDF.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0c836867e9829c4a3ba09ce6d31b93051c45aae2d8c7b53a9aa7d93be975bfea
Signature (Ed25519, base64)
4IwyftwazjJ2GRdR4GKD/6yJ/vwHqNXftLSwkC5pLGqGMV9TWD8+pVptEhXe//Rk02Y1iTjTvTpZ8HgxHwd7Dw==
Merkle root
f91c744e1108c1bb1ec3259bf4dd752db9e3b06ce3ca7c817c48f3174bb949cd
Merkle path
["0c83e99eaf63fbb75ff87762d6d82b14baea4f61f3fb804ed957404f62a24029","f136a59e36ced3fca4b50d1d459adc2128af0a02d11daaa217c9d4d60a945494","f858554889a759a953272565917b2ddf4eeee492ec332085c408619034755265","f63fbbbfbdcb053562afe0410e87f0460846e59a9650264c7568f4c693d338a3","58932225ab464d2023cd3d361b447bb27c98d3d88605d37fde480b646ed6af26","66f97d3b85cd9ab62bcd99c44e9727b858a0e657c60c5bc26736a060f9af7820","9362c5461921b5829a56da3141c8970c6534495dde831016a1b80ecfdd52423f","6eb8ceb4b8564e201cdbcaeec9019b2b6262119755ecc7dd7f12e91a1ac54287","319f5f2264a2c2176750a4b484c32bd4f3d4cb49e14fba7bddb0b0e10869b3d0","ca5f8965426289d59a6f2568397d19c2cba3b47ac84695279258da1a3dd3eb6f","d389e59b968cf7a24dc02281aed70e9a9e591abdb29c44d29a5b85db6685d5a0","e2f14ae6121f38aaa4982e551914713979fc1b85e0916996d36fb727a77cdd06","38add9619d9f1ac1a688809de34787d9c7d7b4d2116d16ab225a1d2f875ff278","939bb6f35c7a9334365aa0f05d437301f5b11fd1649b761216a467d624b12d5a","7e33dd613a6ba5c13ea4ace578351ca5e0375312f966275d25485ca016b59318"]
Anchored
2026-08-30
Public log entry
search.sigstore.dev, log index 2647332298 · entry 108e9186e8c5677ab309…
Expected log hash
5d995478a14ac45f67e2121505e769136cf509c045e6701e0235a25f639d0a15 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":"v1788058735671","kind":"published-quote","locale":"en","page":"product:smallpdf/compress-pdf/en","quote":"Horrible, it only allows compressing one PDF.","rating":1,"review_date":"2025-07-04","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 (f91c744e1108…), 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.