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.

“Very satisfied with the product and the company.”

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 3637467057

Proof data

Record hash (SHA-256)

018c7544fb9f335a64cd1e5a0f0ece66d187f52033e28dcaa7473dd670faab35

Signature (Ed25519, base64)

F1AKB98E/HbS2XQN1Ik9lgySoCnRJZyWyftjyArQGlmTvKzHdoqucSam/0nlg/hanrREcov7Bynzy88iqLs7Ag==

Merkle root

adea50978c44b7e5a42deebe1f6aa800128d7cb9d40a380b6d66c0a0412d1342

Merkle path

["0182eb32583df7fd24974574f6c3f36869ef7720e8bbf6a8fc89ff977ad4f3af","3a471539da2e55a03d31f573133bf2cb593e9272ceb6757fa5e0ef64c71dab03","d4e2f9cbc5cc1bd4696a7fcd3dfe7f9e5df2cea776609f970c99b02f96e0bdef","90a235945d7cb6a803eb2fc92fbee1a7462792b4772fe4c9badd8eee3ebee19e","2f7d2c5c6621526d38b25c1da152c291eeb5b635ad235ac07716644ff5b628a9","8f754999b11e467ed0bf174cd54e0884473a8f1f1d4f25410ce860c3c3aff2f4","498cbafd8038c0f9724ea2bc2c9ef5418588890eedd70ab437ff2ea230f8ec8a","a8fc8b00f1847ce0d67a78c1ec3b43123bfe4f3cca64eb41fb49268ef697984f","206888b42f52d3c9e7cac8dec5f7d3797b99a9d9177cc4fa049b37c2ce28b39b","ff7c450340355c9a22d41a7a56cc8710fae9c3b97715fbb4b71a21c7ee64f407","ec209e65f02de48fab186fc58e944668a01473e813087b0fb66edc94d870bcfc","50ec2dae976e3d44f2664fb95a79e395a9792bad555e73c7828fab9d1d15f4d0","b33a96ef5b980f3655206c9db064bb6266945457b59b4b98e2e19f698343d0e2"]

Anchored

2026-11-02

Public log entry

search.sigstore.dev, log index 3637467057 · entry 108e9186e8c5677a9713…

Expected log hash

e8a3b7eb12262f106844c69fe5603c2e4003589f206935cef50a87cb382b9cb3 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":"v1793588145516","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"Very satisfied with the product and the company.","rating":5,"review_date":"2026-03-03","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 (adea50978c44…), 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.