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 3124493015

Proof data

Record hash (SHA-256)

06c5131d612e8f45c761a3840c1894d42c72725bb6af88223b669d994a109c69

Signature (Ed25519, base64)

vOAVNmYa33i8aonOk2LjoZTAhPUik9yqttu9o5CTJ1I0sS6sbQ7ZYh0XWpnXQHj8n3d6tZnNQ/78SLBgyBEgAw==

Merkle root

c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22

Merkle path

["06c52bf65a001d160b395ef90f829ab198e48ed48d1a5d1c5b2820668f2b5e0b","401bb7a27dc8f496509d2a75b51b971872ee4a9d5819dae425cad8fa85a1a36e","6f2cb22f66e204f798e7339d10f4786773f39b5a62a58008d38a1f7a6610ee23","290b3c072593d1dd37c464aecff6fcc85b87b9503a7777bd38b833fa8bf05b8f","d456f1d3b689f9228d19f330e3633be3eaa89eca238533facc030f4987fe4c33","9c1548ace9f48c66f9ba41081a6afc8a0a3925e3b15b461c26a0b340a5fffd6e","7fc3c95cde57eac7263260ef265b5699cc916d3ef77679031178551581ffc089","4cf5c1a5a51a32ef96e0dd76c5aaf820568cb4554f06a4c4bebe2589ddceee9d","b0dd7225862e48d4b0e1468b29a724d5aa1bff9bdcb719ec9d895e3af6519fd8","1a644558cd15dcdfd13e6a3f0e8c7ac645ed1a50dcec06b7de62c3939a968376","05ef8f764d5e2e1d337d2625ac3c0827f82e8574a89c33de74187101fc420dc3","1e420c13b7798af08501fbe6365ddc5b44e5ea7ed3d656d15db245d747c77a23","818f0135095488afaa32256706f222f09138af7de4410ea79d618f621eaf5cb2","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…

Expected log hash

0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"en","page":"brand:smallpdf","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 (c481d6241284…), 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.