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.

“Ich war über viele Jahre nicht einfach nur Kunde, sondern wirklich ein grosser Helsana-Fan.”

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 3666871737

Proof data

Record hash (SHA-256)

191b07d19de7f0fa4ee3126dc47a9e3d3e196a2ad3f480bed30445a98b032f5e

Signature (Ed25519, base64)

sIPFJSYlB+IK2dZK/fNh1xP9K0nLQDmeoPDZ7mLVa5t6IivTQE7tiikYD3oVML7F37Zdkhm7NrGiFnQ59K4dCw==

Merkle root

765f6792e648cc782d6d33d8a368e434d51bb0aecf5010ed674422d1b3abddcb

Merkle path

["191c9a26d37c9579772eeab3ddb6352ce22e27e868a58f77b8c67a4859404261","91eb2431fa72f389bf955b094021566fb9a1e10acd6d4ff577e64ec33ca055ff","9118094f4eff8cdc6de81a3d48f64aa09d378232863408d55d0643d89fc1b06c","caef021158d9e2c2d2c20bc57a4120bb71be9bb4c068fbff1c43ce5ef357200b","cb940953127e75a39cfcda95423a86330db060f0b61e26bc56adfb9604b6cd31","5a2d0ece5dd7852b3f09dec14b519435ad265c16b69ad9259161cc73bfa39447","e76c3e1ad4bea982a914c8a83424b468d4b9e23835ac78870a66118e09ac4250","046dd0cc6d29543eefecc69360585b489af8539e6e833ef473afdf75d10465cf","06a0e514941c50b0b4d4c395bc6f7fbdba818e4332ae029c70478397ab95e689","0abbfd323c3b836ef4075183abd867eda0fea162b7941c8f06cc3c421d8e9d81","572b46836ff556f8ce2d140b158240e2224652f198230639f0a51d1065baeafa","0b169951b1dd93e46d36ecb5066fde6632414f597d3b3684131ab046c3148b10","0fb11801a090bcf458239f4dbd48ace9e86d9dc80c3156e3c0d61ce00ebe0213"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3666871737 · entry 108e9186e8c5677ac8ae…

Expected log hash

47ce816b42eec209ce807a6ff7fc4ef84557e80f31f3336ccd5d6d00a8d2a9c9 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":"v1793702406981","kind":"published-quote","locale":"de","page":"brand:helsana","quote":"Ich war über viele Jahre nicht einfach nur Kunde, sondern wirklich ein grosser Helsana-Fan.","rating":1,"review_date":"2026-10-19","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ad691485f222dded6378a92","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 (765f6792e648…), 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.