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.

“John was friendly and welcoming.”

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 3272274666

Proof data

Record hash (SHA-256)

453d401ec2be4256d9a1c5892529e337b34b8cd03a9c6ac7c126226a637afd8b

Signature (Ed25519, base64)

4f8EUVogKreUmWL4jw4JGb09MIIPkWuPhE9k/rIpYsBBsK4eqHH5NE2p/InG0hIwCvnIkU9R9UJlXR3WRZzACg==

Merkle root

a4d47c2a34f6eeba31e2744fb1551fe9a0e34820dfc152f1ad93a68b24759c3a

Merkle path

["4540b20c7498882868d141a3bc5cf4b9f1dfaa1684b3a3ea0504ad1e3686d21d","fe0b6961a49b9e001a3a47b1ad756806fcd2b378be8280a53a4ebbae0b26aa37","99408075d5a7d85872f293aba87a81be89ea0012f322f1e465913c051c420533","8f9e3162d7ef5655288e6ba9896eadc7024362075a7de2706eea905a78d10572","8474c377cdddf8df3a8d18b867304f1b6f4c309b1afc1ba2b4c7e4a2904b9a59","c9c649022b5cf2173da00670ddd25f089b53194cd78b97d9f7cf7ed97a3f0b24","bca04ea6c7b05ba64b06ea6d0d2afba33f04c8c48b915b99098fcfe9364544a3","b6cafbcac248171ac1d4d367ed8aa12f659f5b0bb734ea4bba419f1e576a99d0","d6ff45f2c7a87faef9d3efde6c776ac8fe7650a043368d71177913b8adc401f3","234b251913a4b9cf6e5e752f39644b57b8861e5188ffc3a9e35d5a7870ba29ff","0aadceef0f0d856f742d189406dbaa3aa5c755ebe9fec69552e8b54169d5a407","349e15569e0a1f4fe3a9d16d01f014e54bef7124bbf1f14bdc15063bbedc0e8a","0d7c4faad4992f205f2c1ebb2b0e4b1b7e9d070f1f77d3f8d64b80626c324f46","35108299fffbb5c1a0d86f074b5805457d73da5ec7c848a19bc9a928f6a42a99"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3272274666 · entry 108e9186e8c5677a2724…

Expected log hash

d56e71820b4c8c62b755e9f6e3d2b624566d12db6dd1606e99ef55749400c387 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":"v1792036997995","kind":"published-quote","locale":"en","page":"brand:xero","quote":"John was friendly and welcoming.","rating":5,"review_date":"2026-07-29","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6a06a740720a225ec42cf4","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 (a4d47c2a34f6…), 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.