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.

“the essentials like basic viewing, annotate, fill & sign, even liquid mode are available for free, no ads, no internet, no sign in required”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
74211a40b4174a847126eff8f2beb124c54576640449050cf5dafd9bfde585ba
Signature (Ed25519, base64)
5WYZjwHaDnj++i1Sev3oxg7rZ9b1oMhC0jJ/YsaTF9lnljn+FguoIohPX6cJKn+giD24eqW4GTSswC/pv3jhAw==
Merkle root
ccae92ceb3dcfba104788424188fa34a8cb1410075ff6c1a21fa513e89f0c4fe
Merkle path
["7415eca0d414924d89ce27fb704837eb4da2febb39ae6d233bf331baba8433fb","069582b27d57125d8f42cc1b1be3e01f5d4abac0212c70e2764dba1f9c0b4f81","07fdb317b5f11a2c6d6144bb4ce2e6d43fdc0ab771be96331826e88a12592457","b4a2f68f030713090a8da40b3e29d0e51799ab2d813328e12868073d334246e1","5b69f8c1d994e7144f23fb5a859fab7692dd7dc301f60f71cd26ab84ec997f2f","a4ea37064adff76c6a503c1091712b60b5dfc1e6aa4879df5330efd1efed4ace","d2b86023ae362fd1911ca34e461ac4d708699a08dd5a703310fa2de33e91a580","7e75e0599e8f8ab97a815bd976350e5e04de7afabf7ea8849d0ef821cebe67f4","8b8c53b716f24cad4721f6e025399b38d0f2bd8035011f8ac51ff51f94df5387","fee6b454f7fe9efe066b60aedcc4cface11b92a34651a3be1addf941ffe14b23","4355063a540d6fabedb73d8b64280f0d2f84e0214d43185ab2e997d2fcd3fbaf","34cac883526e693549080af2663a642191eb446b9634aa864485beeaf771fe87","e472864955793aaa2d19219057558dc2b6f5214abf252963626c32870bd50cf3","35f1bb6574fe343de1c8512e58fe7937cd8ac075d63d989ecbfbabdbaf4d6344","f73291c2ca924ce4b3764e4b6ff1da65a701069f04fad47c52c8b693a0ec7e41"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2515282333 · entry 108e9186e8c5677a6652…
Expected log hash
af455e73500113c158c8df9793eab703ff863c9c98fe38560752c9a1772810a8 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":"v1787139531268","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"the essentials like basic viewing, annotate, fill & sign, even liquid mode are available for free, no ads, no internet, no sign in required","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (ccae92ceb3dc…), 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.