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.

“After decades of service to users globally, Acrobat (and PDF) remains the most useful tool created to share and preserve documents.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
35e48ac7ac040f378ca2f94ccc6b81da87243c6fe2bc8e455d8454994ecab293
Signature (Ed25519, base64)
9Ke2CY5wD7AmgGxoEoSG566vo8ShPUoeqAxf+gMLTR4IOzocxMbERNJZOU1AFv+SQ4GNI2036KgvCjYmH5QZDQ==
Merkle root
61203b6d05350adaaef087cbce75d25fa5ac2036c1a66344255fc73a224d39c3
Merkle path
["35e1926ae4249d5bb50877b037d9a384ad3422bfe286f14613bd3cbbd9be1044","5a780f4ba0989a61b1a7704c7d00fbeaee22f13ec95e6ab3dda7c48500ff02a6","d0de8dd10cdc4c1fa6f8912814cb814c03b3fdb1b9b5e9bed4487973a7c47d9e","9f9793a9cce29ec03227159804efaa28367dd941f892c194e58714a4bfe6aaf7","8b55ee567b0d766ac9e7adc885ea857fce046c69dbc636a359241e35c06feb00","5cfc7b99275fb89cf8c73e8ecfc88ea30d76aa7c08f7420e91786aea21bbb95f","97e4dfc08404f19a5621ff8b10ea4392c7de69ef0119be9df19f4675cd4a20e3","008c8bf20168786c1a97176d977fb611a53cc8631e59977215366a210c13c7ee","03248c5504040057b2ae040a7b8bba422def75c8fe493ef9bfdbbbfde88cee48","69c70fdbadfd021458f64b288b6bd9d9e9d1c627ed280b39f0803fa99e4c8f0b","35ee954a429fc5b105a23d476e835de7e8770d55d54a21734f19763c0e44d2ed","8a1d4ba118b0a94f539559452081e2937b8784186f7c10849f7322a52b00909b","2ed3454e6d564ecbb4c0efa28239a4d4a7d885e6eec851515c37fb2e266b4648","ec52c14d031b4094aad3b2c7f7a2d0de70de35e711cf6959d5681568f51f3cd7","d35a1781f2fb2fc9cd66aa22e2ed6cd805ebe75af0ac2c167c3e4444a0a6f362"]
Anchored
2026-10-06
Public log entry
search.sigstore.dev, log index 3100032352 · entry 108e9186e8c5677abe62…
Expected log hash
0a0ca7b748f6c99c5a75a761289092bb11c807eeee08be8ec366fad5b0bfd2d5 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":"v1791253605372","kind":"published-quote","locale":"en","page":"brand:acrobat","quote":"After decades of service to users globally, Acrobat (and PDF) remains the most useful tool created to share and preserve documents.","rating":5,"review_date":"2026-08-30","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id469337564?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 (61203b6d0535…), 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.