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.

“mind blowing app for pdf compress”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
0c8c13cd9838df7703f5cf211079abaa9e630bb0cd5b8746e1cfbb5d6d08a914
Signature (Ed25519, base64)
Fxo4FqyoACVXKAoyHbIw882lfO/hRZb87QbFaDX7XfisZg69/qd12GowhiFTiaO+zAXvaiz+jBnrBz/vmhKjAw==
Merkle root
fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31
Merkle path
["0c85177cc8ba72e6e645bffa6e983785ce1dab536832b40f6fe0028fef35e72f","ed7309fac65c2fd1f0d8c14e34a4d1cab38a6d10f5c276d7c7369a9c9cfab649","6e6e78538a42f272ec55e64124be33a0fb341ee8754eaff771ad33cd108ea475","0c0244d9fcc0d9e8d92006c7dd7f21457fb2a0ca4ac0be53c81ae35f374f3bff","ab6a87a70a3b41bd9e10830fe5d96c91a319424ba519534b10f4c1596fcf6d93","e4e53f7305b4be80fcf3494aa19ba634099963baf232a63facb8885f140d941a","4b2ef93cb2ad4f100c5e1ef2379526b2d68a541ace6dd477034222f233b07591","29d4a4a6339aa7d588d3d9e8b3c73be2d81045e7402417a3a93432126883bab0","c77300adcfa2312e43813b9e7869a636d9bf0808c75695981dc6fa2dab94f7d6","5796e3545da33e47160544f93e68b3f43bbdf3685d881d71c3ad0f36e05f6d19","0414b835d9d4159b69a5d85ae49045075554a3460e84fb35f3d3b2e426dae0e4","fee761e8242d8ba3849c6e844aae866739620eab15cd0f1261b960ec67bcf5f4","0762348a28234508bdd1e30587d1fdc0dd40f0417d1221a51093b63a21a51b25","d53ce14c8422f7b98c01f3be46add79c44e4551711bc517ba367121540130adc","df2c1289894581f6e22c526afc719be15b70c61ef4fbef0978dff78cc8fc6054"]
Anchored
2026-08-21
Public log entry
search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…
Expected log hash
e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"en","page":"product:smallpdf/compress-pdf/en","quote":"mind blowing app for pdf compress","rating":4,"review_date":"2026-06-01","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 (fc0474f2ab92…), 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.