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.

“I would like to commend [sensitive content hidden] for helping me out quickly”

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 2515439294

Proof data

Record hash (SHA-256)

65357ac7d20623e130fb57e219e2bb43ccde8ec1b9f15f9ae64c69a4895ddb0e

Signature (Ed25519, base64)

z9l5g3RAnaKk+4t8JsY8cr/SR/2piAOBP29tvI4plDQXRKgqS+t3Q2d0vPJQkSjBKFxAQwZ6fZRahdHSN7bKAQ==

Merkle root

8c6268a14330d1a3403c561e774645b0671f81571ec1735d4674ebe1de7502e8

Merkle path

["6537c9e5f2844776cd41be49f20e9daf77b1ab86afc8a65127488eb2eae45760","2a8a9d7dd54b260d56b71579de7548b1e360c026f8a3707cc714a1cf59a46a15","b55db95230a64ec3d307879dd3879a20cbaa82d894643ef48455f66f360ce01f","af898c3626c654b78eaf266d3d865a7edb3851dfc9410e05a982fab713d95fa4","ba3862f635c88ab8e6a6c4c066a6573fcd9589e837734600ffb6c1166a049397","a171bf5c8df5a098281b2ca65a3d46c0cd026ac93af33bb20a7dd3e6d6fcb96b","e5687d57b73825cd29f0bab4edcc50c096b62318e675e86d70b4d6b4a13e6aa6","19406dee75313d4ed6f80060a8a42fb9663962e328808824f676f209035f9a4b","cf80f7df8e70106a86cbb09ac00cbf8f608e79a99effc062d097b27c9edb8de5","0196eb412232c07b983038168d46e9246861ff41a2a9bc519b4842d41d8092e4","873250fda75b72c460b3e95ffde7dfacf27ca8c77ebce7d2f139ff75027e1fc7","da59334afa2d819633e90b55a7c9b28b3150a2ebd2ea3f870365a1df4a927c16","747ba0b6317c3750e6242affadccbda44b868489e275092a024dce997ae773a2","3a0d3c267d2a0d179768ecef7d342dead457fe1d4866ccc6b84c72a8362e4b38","f548939ab1bb46e2c6638c372c3e2eef0d561ad18c63c15229fececc951e0b3f"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515439294 · entry 108e9186e8c5677a4f15…

Expected log hash

128701fddbb19410bf57cdb2d04d7a0278d13bcfda6410d76f176fa58341e1c9 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":"v1787141082461","kind":"published-quote","locale":"en","page":"product:smallpdf/translate-pdf/en","quote":"I would like to commend [sensitive content hidden] for helping me out quickly","rating":5,"review_date":"2026-04-09","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/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 (8c6268a14330…), 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.