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.

“Been very useful and a pleasure to use.”

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 2632227861

Proof data

Record hash (SHA-256)

0d53fa5a2d8cb9a65b94dd814306033bfc3385eeab18e5351d729bfe033c75f8

Signature (Ed25519, base64)

ELfhum7Q5T2m/kyouBaXwPzUae7HZDzLDqZmyYV69MUuSxQ//H0hwoi27YPdjt6OdmcBlUvgCVUwTmHeBruNDw==

Merkle root

9809cd1f65a3d4e144579745a20f7882b635b7ad9e75f8b31fa040fcb7e74470

Merkle path

["0d4c297bfc9c0c2c441b7b13403facb3cdb81e2b66ab3b81bf0fb2b6e9176985","a2e0526d1d24397472404aa931ccb50baca5539952408c9c3cae71c0e43d711e","502bab2aaf72f8e4de34c7502432575903fedde3cffca5bfb49354499e36ae53","e0dbd831b982d8f90008489800b2adbaf48f9caae571b9bd1fd28ff9d70d1efe","b644ca46805bd69bc919dede2d2ee38273c62e1467dcd3972227329d920a8a5a","b7cbe6a10d97d3b6b27610ab7c85155269d01278a13f12a004d70c0372cc1200","08ad87dfe8f2f3a0f39fb803afe60047a111f9c24cc8e256f832b2a336c2cc76","0820c9e14791dd66260c8cbe5efd133da27490a7651aea0819f4d508cb9f4db7","3ce617602fbb999fe6def311a127dd7f20e6ca22ab26998f235a691de75bd9d8","a825ac2c874560ff482a5d3363a1858ef340ba4bdf8a7ef7bfa322036f7fecca","07a027eb2fd4a498e30798d2a1f2b58a0f4b4ecfd380ccd4b59009139ea60da8","481f7ef0a039f0ac74ac45e941b1f75812097a8a1d86b01a2fa72df921bd5f85","c33a9efcd0298a63eaba2136cfe18dd1517727e1b9e9bbb60122216df6f0406f","13cef35a80378a74af4faef102936039d3a54a741843391bcf32134dd8e61270","5420b3c3f4a7cfc61de84c757928b42517e167d282e291e38912f2169ce60350"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632227861 · entry 108e9186e8c5677a52ba…

Expected log hash

8be5978cb1be4c5daa434c41d0072ddb211c64c3f93b137b58c71c55ff15eb8e 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":"v1787972611008","kind":"published-quote","locale":"en","page":"product:smallpdf/ai-question-generator/en","quote":"Been very useful and a pleasure to use.","rating":5,"review_date":"2025-12-19","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 (9809cd1f65a3…), 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.