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.

“This has to be the best free pdf editing tool”

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 2632992954

Proof data

Record hash (SHA-256)

0d1b28b7ef87cd09debab9a1cfd13041f218c295caef91ec29555a1fdb3136ff

Signature (Ed25519, base64)

bcTMXUrUA4u/IcCwr3Pv2fQO2Q+cXvKWOhvhChUWNl+ivnPB8pjaF5EYcfOt6tpjRnlsrIsmaiEt4TUxrVfFDA==

Merkle root

761f428c7f44b8ba37e197f3cbb402245009b42c2fe1c2d1c22502b7539d8b92

Merkle path

["0d18b4b5247684a6f6dcd432d8fe0572921d94bcca9469a5e30e6e04d958cade","ae9edcefaa28faa6cb00a1bc77261485d31ae0fe34618f540a2887589b9f8435","333ed960787e804479c8f46817dc30a1bf2eb0ded58591ea09360bdd3fc5cc98","488877713ebd97fb15182a45bce28719c781ae663b5352e1de901739f9bddf18","aa33fea4405c975a5adf7a02028717ab2e89143d8d3bc6eaa572a6b9a25bfb82","931baf52313e9462962494504c2dce93831b49dd5d1341c5a77dc0a47b9def09","bc4a50ea2575215d623824e031497365e58859fb8ca9047ffeb8423d2b618a2f","47eb77d0f42efa9bf5e111cc0b20ddc4ddd516c7694bcca8cf44662ad3cd3d4f","c2573db824da5cd93e661d1af4823c50010890c4896c426f856425ee30b4b56f","733a9cd3438e9ec3d5653b5752a03c3683dfc1354ba3612f685d4921e9de8025","825da8037331e42db8a9cca808cec4078a1fe289c754d6812541d1e8c14757cf","ac2f3954890d50e5b934e4f938dfe72f0ed89b30b6b5e9ab8d03e21aee2ed045","25ba2ac2abca74d5248bc368aaf9983fea985a62c2acc2567cbdbe71d6bd7cc0","d7d046f6bf143929536e498046e2783984565776df0c4d84bbeb719debcca31d","98f4686310343eccfc39a6e64e03e6f8dfbadf7603f7baffd9efd8b7d19d425d"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632992954 · entry 108e9186e8c5677aa5ca…

Expected log hash

96c11d64daec1fd5d2cb12bf1cc37249a60cb62f00cae505cf36fc8b47d6ac25 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":"v1787977614417","kind":"published-quote","locale":"en","page":"product:smallpdf/edit-pdf/en","quote":"This has to be the best free pdf editing tool","rating":5,"review_date":"2026-07-24","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6308c9f376196423331994","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 (761f428c7f44…), 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.