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.

“Overall good and very useful for day to day office works”

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 2582642691

Proof data

Record hash (SHA-256)

0fea478e6a1d497e5afd2c1848b3bd88c7177f19c5b9c1e1de3e3e5ddb206ca6

Signature (Ed25519, base64)

ALmU6jKHaM24Mk9ApX2zNcIuidKId5p5hQVytl7HuQ8vcahxNY39Dx04Cws7I4ElSKWsRIjhuXs0NESn8DmkBw==

Merkle root

105661e0dc11eec81116882b16fd8acda1c827c70c95072f37f1e883085582ce

Merkle path

["0fea3fc9a6b51a806e70ba0be9d9eae9e2a1443741140bed355fa074e252c61e","6f73fb878edf697ce141c213dc9162bbdd5ca1a48114b9e48d0c8f713be3cf6f","9011956d0ab270ad8132e4c937a71b42060bcb56e300b0c68fa5dc0bb77337f0","d01567411b377c59efae90c090a629ebd489c41a4cf938b39cbac982a698c99c","7c8873c3605d008fbf9df53e3307a23b8f94648b5197b740931fbab5b9db3e1b","c3442c9dbcfb0e109b5a2a34bde4ec2a45d7436360c0e0232b6a329c17b0e436","67596a122df29122e1c050f99939574e1d9d83b9d47867522acc6a4c317a77c9","d51478acfa34fc72adfdc533163d6da63b0e294ef00ca47c41eb44fe347fe227","2f41fe6885ca406f3c72af9bf9aa84e96f1de14aa6746ac5310045356b94ac09","612224981b382be1cebf60ba8a8589faa913041bc2d5a93c80212dcee729067f","6b252f43d4cc12603bac5935fb7ed9c77854c6f9dd3418fff08118fd8ac96fb3","7abb68ff7b8e6058b9df117a8053b5b61ef898e5c7cf32b89c5171c046632b99","a13ce97d602a228d6f3744d88932177f5fb29e4b2aa193e896f5d2f631ba583d","b7cd78f72e1ff3ed0e5dd5efc148786b24a846e3493df91cde1b58dbc82aeeb4","caca5e74ffa93053dd1e9893a23cfa4dcfa7162e5f4edbc1eeeead1d2f6b0466"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582642691 · entry 108e9186e8c5677a5752…

Expected log hash

27172a9fe70fe428b6fe8e826e1330766adb69879c24941ce10f104786789683 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":"v1787628738977","kind":"published-quote","locale":"en","page":"product:smallpdf/ai-question-generator/en","quote":"Overall good and very useful for day to day office works","rating":5,"review_date":"2024-12-05","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 (105661e0dc11…), 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.