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”

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 2680856520

Proof data

Record hash (SHA-256)

0c4be3826b746bdb94ed959ebd568ffd7b3e52552f66794d10d8cc8cb671fd9c

Signature (Ed25519, base64)

hNfw/eMXaW/nl1vxPIpFJo3Zw9oggq089J3e4GtjL8hGkwq+sT2rPLyzURsUngC7mQaPV+Y00kyNIJFxCMsFCQ==

Merkle root

e42defaa0a17e226699ea4a82dc9c6dd27c28085170ffe1d62d8c6a4c9215db9

Merkle path

["0c477ab121b2a39bb12bbd9b260bfb00e5c2bca1e4f1863a5d60add835e1778d","0f532fa7d00b28010aa9fce58ba04a112a65327d9bbd023032819befa570a7e0","9c846da7d9f22f41381493c28f281fe57ab9d8a40c585ce300249efa5d99b3a4","20c3fb1a6a5bead70d2a02087eb984f84c4ad46987bba9e2e6aa923a398a2e22","0db94b749bb3fdb244fe677980948a1e4a26a04f85dae4b9082ac0a2c92fb3a1","a7f4e324de64bdc1f23a89cfb43e14c08a71db1b3dde1996af08055554869a50","0c5c2130ba9e6380f4a5fa5b0c8bc850222597e82ebac9cab32d035ecad65e24","90bb2705ad2d43f81df39d7af0043df8f9cd70f1e9b82f707f8695047197a28b","7486a078b8157aff551edd7d275674060091df0cfa7b7cb3349dbc75d165647c","8478dc263757b1748d5eb57177ad8be3a4710572148da246adc6d3ea6c28b848","261e71352027ca864df620d9e191c3c277f567830b0fd5db35ec1212846651d9","26322ecba042f86a8a3948f32fb985f61482003505576f985a5eec2ec4c81858","a723e3192c73ed0856ed765177b67dd95561b4a0d6d1c0b16f64f339be4f05a1","f9b10a6aa616ed717dd3cacc1714fe509709e95281fdde9fabb8c6943e906d5b","270a8fe791f18cfa20f43263c29329704ffea666703469cea18570c7ca1219e3"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2680856520 · entry 108e9186e8c5677adb25…

Expected log hash

356153ffa6072187539ea75dc6dfb23d03b74238aa8aa70cd6aa9a6a99e983d4 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":"v1788298923475","kind":"published-quote","locale":"en","page":"product:smallpdf/edit-pdf/en","quote":"This has to be the best free pdf","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 (e42defaa0a17…), 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.