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 have a lot of PDFs to translate or summarize, and it was fantastic!”

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 2543266411

Proof data

Record hash (SHA-256)

5a8d64a00587c334263ae719a5863baf37cae0434fc4a945da71ab7d98bca186

Signature (Ed25519, base64)

kHcB/bDXUfphJjeTmbi1rBy3gQ+uXd8vSHf0MCSVMTPC5YkvtBRObOh2jaHrhTwY5NVlhcmhqsJK0GSJLpj6Bg==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["5a9265f93529baca744e01528d9b7cf6401001892877c8a763605c336c75af0d","295f85bbd1bd705400cfbf4b323141a4a31334fb1be7e5b4f9357c017820edbc","5765e7ead8566493c27c3e0d5d6ef99fe37349228c27b74efd8f80eec09a33c0","912dd3b487f3e658d7d0411849f8b09d031fdced3272eee0df0782cead16f22f","0d6fa1a175febaadbad4fca67c625449f2ed2f4432947781b5dda20303861204","56ef1c4e9e1facdd995abd8d57463089254693e4fe17d8977f3c38bcad3ad884","b43cde817bcd96e8d44329a28fb932797ac4eb9199162680b98bb6cd8cb13b2e","9e98976899a0aaac359c311b2c72bd3a0108175a8f17ccd18f18b0e25a320a19","50f8bcfd9c1a0259b4136818238bf63f420f2801f00da9050f2d65f62cdb9179","ae3f70b08a7d34c3f8aa9058adbe7473e8dac9e76ab5afdf57dc86cf77033370","19e2203a5ebda953608100c7f84e55009c62ce2508ac63eee1a2303ad8a2ade8","eda9a12954d97a6a7b3aab1299f944865385fcb87c1589ae9140d42544dc8529","fc2731d864612e3e44a82c332896cd2770948167888770abd053f05a4950b01b","c3da944168348f2737a3a033a43606f7965e05f20058b59547dacbfe770ef5ce","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"en","page":"product:smallpdf/translate-pdf/en","quote":"I have a lot of PDFs to translate or summarize, and it was fantastic!","rating":5,"review_date":"2026-04-29","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 (8ffad6e97d14…), 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.