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.

“Nitro PDF is a great alternative to Adobe Acrobat.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
f962c3d3b599698b1e6c1fd192e91849aa70df034bd78efec3a47e0ca0fab534
Signature (Ed25519, base64)
RrVzQ1d7V7iut80dgX0KJgVBYUL7gnmZOtMLDeW8y+L2R4z3I7Of67OvYSaRUfRDRzY2/rP0szqES0GTV5dABA==
Merkle root
1dd7fec10002d9304505761bfad9c0f048c94d1d6a0775b6fc4291f712d4106b
Merkle path
["f962fa8c83c9da80d576f3b6d92c888274aef7bd7076a5de17b7f0cd7856dc36","346584b2c06b7f8e5d9d29aafb7d7d989a707dd5f0841f9de27a905acb6aa20e","70ea8a7d917f5a06bd2f1052046bf168250abb7224e26f90e19f3428b6f916da","c660667dc00ec0fdc43ea930f09dc1673fea6fae65129532444e9b1af8562816","0f52ceea0cd53ceeb09cad6c36d7c6a317a619d1fb87cd81afa75073e481e2ed","89762f0f8e7869869ae0824d10c2ae71999d8fd99e8a25f4cc0e4a9d77eba1ba","d6080a52d68352dcde9a86e3025b395a135ff044f54381bc06de860857365ae8","409d2c3bd499e7cef946faa20b642614fa71647dd5a52ebefb2bafe3761ee88e","1d953a2593dfd3bfa3acb0be0b49748dafe6d89f968f2acf09066f17bf44ee1c","70aa3b1015072ce47ef513bab7cdfcdcf449d5bc0cce0069dea8666c1369a508","d3656ba3ac8ec19916cdce3763d601b4edd6a030931b6b6eb0239e3dfd6c01ab","1216bd6fa33967f76e24b7966e2693bcf0e5ff565160018cd7bbdb934b307fae","bd07d87bd70febdb2065bd01bc91c4a313429f0836c93e8304bcd2037faed264"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2514297706 · entry 108e9186e8c5677ab801…
Expected log hash
861cb9c1424d2f408888a591a8305206c340f8249f4a4581b32f940ce8815405 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":"v1787126020727","kind":"published-quote","locale":"en","page":"brand:nitro","quote":"Nitro PDF is a great alternative to Adobe Acrobat.","rating":4,"review_date":"2026-03-01","source":"Software Advice","source_url":"https://www.softwareadvice.com/product/174016-Nitro/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 (1dd7fec10002…), 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.