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.

“muss sich trotzdem immer vor jeder Sendung werbung geben”

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 2543266411

Proof data

Record hash (SHA-256)

fd7354819909137e99a986eca6987f593b26d44b25e6efed8a9fc63da6a523b6

Signature (Ed25519, base64)

oq8YQ66409JrVORymtDZtLw4NXgDaYFinsd12Z8boq5IgqgF3D5jfb36gcqXyYsMk1Ju/aj+w8l3qYS2RwaLCg==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["fd74be4529cf9e0d04e4835f991b6796f4b3f3cf478fe373d35bd47da6fc7e8b","f4c81f4e5fe952383570eb2174bca056c0ab08508b9d05847a2cc0c78acbabfe","dc8e586d6ef729235aa6779b4c4bf5d62b01d82f9b570963d3e78aa951d49e6d","321285432f34903b0498f9b5fe8dfe9e3c135ccfcd2d67bd532b1592644635eb","29e2f66913c5f890b11f910b75959113e9f2581da8f58037a9aeac66e6417770","f1551e704d213c9940850ecdfdca5b4981bf759e24fd86ce2439625e3b67acfe","8762726d0d2f7026b5c963177565b4000db8d9c050f0aa9c1e017cb3bbb31dcc","2d7a489e3cb6a854026ba52bf4fc5234329425b19ea2b1c32bd142256b8f4fef","f69dba89345c085265d7f0bfdb1634310008a13aa262a7b8ff400871bdc85851","df08cddd70f2448ba30e29d235ea68104f5c2f6976a4325a0ded101da9a6bcba","55cc2043e83be6a2b4799cb70c4f258ae16af88ec89df776812174e82dbb32df","7c94ff27d324cfeabd6b92fbe8fbca077bdf14d29975169a3a05e610d1bed13b"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"de","page":"brand:swisscom","quote":"muss sich trotzdem immer vor jeder Sendung werbung geben","rating":1,"review_date":"2026-07-28","source":"Apple App Store","source_url":"https://apps.apple.com/ch/app/id798597407?see-all=reviews","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 (8ffad6e97d14…), 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.