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.

“As an early adopter of SmallPDF I've loved this tool for a long time!”

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)

0725474690349a7c2d7340edbaa64347c27e8020194e12ef9a2a48e0195f20aa

Signature (Ed25519, base64)

XohX4o9AwAAVSiqK7Je5G3Qi9iL2dzmsk+dxyTqPJE5yez7/QrWIMrQpD/9XxhkQ9MNQCPtHTn+kY2J7yw7bAQ==

Merkle root

1394768b0826b6b937ff0b31004a422bee2419644b39fe97fb77e14074b67bd4

Merkle path

["0722ef3ff6693f73f2ad328066455d97316efd32fb4546f50b5e279fb547c5c3","c20663c9fe3dc8617864b99a67a5c25d45065deeaf519df1065601e515f7b618","3b34c63b961c7682aeab0131c6ca48c21dd416a0dcf80138b03c9322a0d0c97b","336db03a6874c770b049ac08cd82e2b188e1993ab8a78ff667cb637921e50424","f4ef91f8b3688d0505d0d2e47b2bb664b9590507f2babe9c2ab00524629cae40","5d1e55cc520680fb0684da5fd0fce7fdcb9d6431e6cf729cc885da82aa778c0c","062ef78dca7a53b31fd018e830f75d8e5f54cc6b8e1f176220336c2b9030c98e","c60a302c55db88e5b13bbab32590e10cca8bcb30752aeae36ee0c3c75c4d4712","12b2ca3226f94dfe84b3f6aa80939ac100b042892c328ed9429cb3cb1acd9282","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":"product:smallpdf/convert-pdf/en","quote":"As an early adopter of SmallPDF I've loved this tool for a long time!","rating":5,"review_date":"2026-08-06","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a745453aa09066ea002c415","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.