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.

“Steady, consistent compression”

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 3247835674

Proof data

Record hash (SHA-256)

077697d703b2ff14fec98582790ec1b2e536a6215640855fd28a52cb2a3504a6

Signature (Ed25519, base64)

vh/SHUZLZsgG5U0uW689s4Hq/sQU09Xbw3Dk+DjVDJwOXLyqkP9NOUkRmH9ehM2ZlsbSGJ7abke7jdhyNOeEBw==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["0787bc17e78fb7f1fb86194a86384ed9ed8a945523d2af87de337d6837a3a232","752b2929e58d37cb59d7986c2c87de4a552a8485944e91985a1e4d4f0cdeb52a","8c399c568cf7c617e3bb7f5aa854506ce95442734e07deb4e9a242c3f2c15552","82eed1b04ac6e1cf6779b69115afaf66b3bc03eecfcbf259318db8b099f5a604","bd4715f8faadfeb95f88d70ea70fb97a76f558608fc1ef08d28fd5ec365ac9a4","0b8b9729ccd1f77977bbe90ef4d14f9776c6b0b4360ce29a15b0a3988dacab51","93b8854736f7f755d93a4d69671ad92705c5387a06c3d09149a91a618282eb9a","aea33dc8a7fb35edc5b2513b4e0d24c659b1c6eb1a97e464eef2af14951262e0","ca52e651510809fe95ce3fe4f1b4877d8c8ec60cad4bb1f98ebaaccec8fde585","c5b6704c038d47d2378e7825f4405c596cadf3e4f58890085fb142aadaec0b39","5b6bf80b3005705f51dc7da6c03522d0a90ff1a4add2493eec66879a0621f813","69e0b278fde36472d775b547f81c80ab6a46676326bfbd973817b55dc3255d09","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"comparison:smallpdf/en/cat-convert-pdf","quote":"Steady, consistent compression","rating":5,"review_date":"2026-10-05","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ac3cc4a8faec3a18ffb79b1","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 (8af5f2f3f65c…), 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.