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.

“This is the most useless PDF reader/program I have ever encountered.”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2969645630

Proof data

Record hash (SHA-256)

2f872bd986ddfb642ad1572f40ba9bc65431abf5e638202d916117cc7c09a756

Signature (Ed25519, base64)

eYLZqQn3TbUjwePJv5FTo2+b984mvSoIAVFJSNtR0BXO3lgoJxYO/Qhjg/kAyxTidDKOhWfKQwJAgtz7CLmrBA==

Merkle root

714fd5c453665fb7238b83bb755c09ceea4f24c6bb04f621046ea8b9d5da1a83

Merkle path

["2f8541b8eef97f6b07f16c7beb6c6c9cabd4f2a58020b15b713870308d4afb25","276ffa7e4f483c1c5696cb4d95a72a162363cc01d17b0844a5277f5595ec92a1","e99483af3a161a9d84d7a4953c08cdb999278c862f81306fc03946da44251d28","bfd46643d9e801af8bdacbeda72db184d2ec7dbc52af6f3ab6c32433230dad65","4d9cc9c86f410b909af6ff3ceaeca5c01438ebe4c54e243bc4fd6ef59ebba29e","a7ba5de9a6173796334edbb6a349300344df006ec7e8b75b96302ab1b3fbff0a","5f1fc9e97e14b8b83a2981053ed54dfdb5e32fe628c982abfcb05ad685b93efd","b9b3a7607e14a82bd49e7f5bac7eb0cc4db1363b9d483c1706940839c0adc348","50a4c95c342e7301fb78d79956eda3cb850d1057cca1dbe510c46f9a6a1d33af","d280412a988c9a35eba809dc8fade2a5a2ae21a4fe218951e4d94d58048911bd","c53e2a1f2c26cd59778b063576b65d991dea8ac5d436e6bd4e30c2426e89e14a","ed38531d5a3f3ebc270e0492a8d6a4cc4d2035032431b503cf55aa15e82c3f8f","845fdb47367ecc34e59993e716bac94f091281e8b7d978616b0716239d2f69bc","a74e96815829544928f52d566d2e0783f4233c64b908a508f65038e2ffa1590b","0657d6cbf3a92507a9a9b11146527ccd4ea9969d68d2d85c40e1ac60d2ab4392"]

Anchored

2026-09-27

Public log entry

search.sigstore.dev, log index 2969645630 · entry 108e9186e8c5677ac05f…

Expected log hash

9c269d3e82dba16de30aab3330968f6013b6b7908bdb2f7b3ce0083771a2fe3e 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":"v1790397996853","kind":"published-quote","locale":"en","page":"brand:pdf24","quote":"This is the most useless PDF reader/program I have ever encountered.","rating":1,"review_date":"2026-09-23","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ab3eef05a9cdf1066b1ffd5","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 (714fd5c45366…), 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.