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.

“Neue Karte auf die App installieren muss man Doktor Titel haben”
Google Play · 1/5 · 2026-10-29

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): 18929453de0732b15eeec46feccc8824b9a30164ee6329e90b23b4279d576a9b
Signature (Ed25519, base64): qkp4x18m5TbsesqFlbv+ZSJKzAr9IPre6Za9GF1HYkCfYkN1nwsTakiJYcLmYcPgytOJ7YJ+j0hCYSq300eLAw==
Merkle root: 765f6792e648cc782d6d33d8a368e434d51bb0aecf5010ed674422d1b3abddcb
Merkle path: ["18979dc25f06b231cd7fb932bd323953462e6ce3f17c6080c467fab807f4b15f","edbdf35ff02757bcca245e4fcbb8cbfab8cfcf43815742b4e0f034f974f218ec","d512c6ec2f7cc8bd30c8a5dc91524dc15cf4be55243133352f5b18b1816f5832","0cbe555acd89d3b2fbb5ccacc9d0b84283e24712c7a31f72a227250053ab96fd","022af8f690a428d3a6a1319426c8e0577af6b5f63217986c68c7d149ddce79c8","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":"Neue Karte auf die App installieren muss man Doktor Titel haben","rating":1,"review_date":"2026-10-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.helsana.myHelsana","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
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.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.