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.

“Kundenservice gibt es nur anfangs”

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 3162293789

Proof data

Record hash (SHA-256)

1fd642001a0aef74436cfca1888c9379a5dc02259cf0d21f6135837b49200f3c

Signature (Ed25519, base64)

cRGYtqZjwx+EtM0PVlV+adKeyW5jOeJsTwbIztvMvfOEubRM3BtcOdInstZVv+qg89MVxG7n1BaIldYBcK2fDg==

Merkle root

ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78

Merkle path

["1feade7ba52cfcdd22e935ac41bb20eb3a87b46a169d1a915f5f1474603c0401","c35a2c3b6762f7843a988a129453464dd95e503f593537b493d6129ca858bd3c","402bd200a2b9e7642aff6dccaec81cb830f2683c1b373c924141823a2a42089e","a968ac92d88bb0483902f10f89bcefeae28e4bfbd96ba9d9ad05ef975f7e0bc0","d6543ffb94d69b8bda2a137902acb48e940d3380d84a99540a66b8ce2ae5817b","ce565fb9afb7ec6cec832473889c1030797971743c726329a49d187c86740dcd","59c03fb8c3065bc106c457c18ad28ad17e98d051e494a14db8b716f6b54728f8","6bd896b916a0cc502831d50e77b79d54aa421b9d81b9ff3552fae3520c4c29fd","7d8da047bab32e8a311dbaf84a0e850caadeee6b719ea04cb0d71b936e3229f2","eaf7d9cf62279366a512290aad201391726a7973194977815e6d5eadbd5ba513","df2fea832264de3af2216b44e205b061dc95cc9a14e294f66b51dbb027e708a1","1f4057a151ee201b828d97e6a824c448929adabf69bbc73546bb374356ffde97","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…

Expected log hash

49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"de","page":"brand:amag","quote":"Kundenservice gibt es nur anfangs","rating":1,"review_date":"2026-10-07","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ac678ec350c093088b1de87","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 (ab8d4de5853e…), 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.