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.

“PDFgear is fast, easy to use, and has everything I need”

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 2544236959

Proof data

Record hash (SHA-256)

9f8d6c9de619628bf3904d07040aeb44b4925ca602c8a4372f962927e84da3ec

Signature (Ed25519, base64)

AFQ+uITTew+h2W/Fw9zwHBrGPm8uPAxCcgvLS+DsmwUHlNXwaTgfOTLLHzkeHRtAJWjEBTSU2u7nu+XVx4FLCA==

Merkle root

cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3

Merkle path

["9f8de0d03f9ccdb475dd0b8f276a1c71a537ae1c9ca954a753b7bc153ad99f1f","db19e84cf46ac3f307bf3f57c9be3acfa256d91794e256dde72f3ad2adf1c41c","96d47bd8b4b7da3343b780afbba6ccac92eaddb3afc1d1ee124965d8129860ca","72167160a6e11a0a8d5370118049b6f95949d91dfe4f4f89847ff93750768e6d","a6bf46535702a7fb029def3da4f29990c064aefe98465786383f1c87f21e9f29","34d740c2075af08ab904952553199c009f71c854e45fe63e0dec4028b53f6849","b14738ad9236be235c63dda386ac95613244a9239d6f6f1a0309cb4cb63dacc6","7e22e71556925ce236158f1168422f842b889ac99dd42c0327596ec4d24713b8","7f72a4ba47949276ee9579ddcd89c6e2a3a9bfa32e449b9e09aca3ad3a74b591","0f7c352ac781daa0c23f5c89892652648f565d9b7ed827283b856337050680c2","d4d4f8a7dfa2424e80ec0d44964f3373073fe907802a01db3da617612c6cc518","2087f1457331087a09d26542a2eeff2f7ba6c6defe2a4d5a6513941cf1a33537","72b50fa4c81ff112c2c888ce3a6c0a9eecaaa17d0fb6234aa2344d0f3f85c205","9a1346831517d7bfe15c9cafe704fcdd7e5320eb2bcb608a630afaaba7d67d2d","f25e568e6bd90a5619f6d6d975016290629a8afed06b80200730e4e12fb2d1bc"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…

Expected log hash

c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"en","page":"brand:pdfgear","quote":"PDFgear is fast, easy to use, and has everything I need","rating":5,"review_date":"2026-08-20","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a8717968a4877e12ce51010","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 (cc942239c46f…), 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.