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.

“The processing speed is also impressive, even for larger files.”

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 2671093901

Proof data

Record hash (SHA-256)

0976ee3bd244e31cb3cff80fe39cc713c8a09c320b55894ae1dcb285de472363

Signature (Ed25519, base64)

7i3qeejMwcknYQYI0MLkfcJ+zt8N/5HJN8sQuLccvb2Fqrl3zBLp4G/9rQhUw4P2sA8hl3OIh9Q4XoGXjAglDQ==

Merkle root

1394768b0826b6b937ff0b31004a422bee2419644b39fe97fb77e14074b67bd4

Merkle path

["0976ad1b415b32668d27d6e74ea712923c270c4ba0eee140b26685a4baaf33c5","edf56aac03b15fcd306b0ce0a49fca72d41ff00ac762043aed4524b613c0d754","af94853a80d60bab4b0c4a40094e1e5a7e202e832f6a9103f2e92ea7e80bb599","42084af3403f44311e2e1831b5813f065d82af30346c3b81cb6b5207d43be685","e944ed7b92bac8b88679f14f61087632122bf15b52ce1b195708fd2c1d3b7023","998dd3195de1bd57dbf26ed5a8975e43459b0167ca1f9fe241854d1a5a75e123","09e3a561204039af3a395d2dffdf86529f8da89d50a4cf926b4be902dd2cddbc","ce7caa3fc1b860251acfc0cd8a2bd6857dd8b9339c41d394971f09e57b63f1db","8d5daeea2c81e0c6026b21321fed957fd091cbec7c9e5017180b870425026d7a","d04db84b3598aae56bf654991fe4c986698e185f37578fb51c2de01e39a4ba9d","5c540a70a82b2ac84e899a565a532b2e2999db4937c31c824bdc60ce59764e6f","52b2c4a8d2bccf71f3075d767fa8d390e76ae1c508be885212a29f3bea41c41d","7abe31e12d6c8fffef71c3a666a728674401fe7c669faaf1386bd07be69da5d1","3e5915c1d5ccf543ae966ab1f581b7d947356c48fd6eb1769bcd77639aaa067a","ff7db8bf767e6864d9791ed835780c06b3f04b9b86a4e7b38bb489221b57ef0e"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2671093901 · entry 108e9186e8c5677ad1d6…

Expected log hash

c8e5f7895de34ce4719896fef161b45264e25a8df573e258498630d492ecbe4f 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":"v1788232827800","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"The processing speed is also impressive, even for larger files.","rating":5,"review_date":"2026-04-06","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 (1394768b0826…), 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.