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.

“Das Gerät liefert keine konsistenten oder zuverlässigen Ergebnisse.”

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 2621780523

Proof data

Record hash (SHA-256)

fbb5fa8cb0e48fed73982922d4a9ed1200a752c7e6a8d3cf1583d48a855ac16f

Signature (Ed25519, base64)

Zhppr1OEmU3/uH59rrAqHfL9HnYnfASpKgR2pfuE0Cy96QJODkMKXep+xUxidz+GXt1m8LucAupB+rytNIlhDg==

Merkle root

7b426d9a8e4778c60509753003c7b551184ce3f76e1db9b678c604656c147d81

Merkle path

["fbb721e6f167112fffd81eb13bb3396e6cd050c88701919292a873b72e6a7f53","49a5d186ea0cb83a45e0a9843acf62db51e4b778b24164226db758c0b6dcab40","a504c63a38fac2e0469ecfa25049613f883e46eb5629d3887d340f53a7a6ab7c","afb23ce0fe82643dc146a0d91785491b5ec4b480287f085f246d0b325444d72d","f12de61519701d2423bf3574c92f1c4803e276056123931030cb6e2b0959c157","9cba1e8e15fb30ccdcd7a846aab6aff2be4471fa2b9327c155af61c0e0f3c023","4744a3ed324176c8a25960f3202cfefbb0dabb5a6935eecbd9fc5d45001bf8c0","acc098b6c6f483f1af8b61853c4969f680b4533fa36f333813edafb312546163","dc10dbfc4eb9af85da46c80aad6e6ad35579dddd3c2a7dbcb43862ed763961f6","1b70b931a2c1281be2e19cb4fed5d746ef642a855a2fdff6ddba826130f47d34","52347d77917bffd3fd81463daba1b50a7d6aa9834d5d140c6c5cdf09a45a5234","592dba3a944f7cab6cc1ce50bc9d1f9103ec6ade086e80d471077ead0a764463","5cfd3f01cfc088b9ce004c6cc4dda4490d6ee2e150a101125197cdd0e0e5936f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621780523 · entry 108e9186e8c5677a0666…

Expected log hash

8cedab57a40119bdaca7f2b5c6cf9bb1e2c3e69dc6a6b7339d16a6592c70750e 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":"v1787891923870","kind":"published-quote","locale":"de","page":"theme:metrohm/quality/de","quote":"Das Gerät liefert keine konsistenten oder zuverlässigen Ergebnisse.","rating":1,"review_date":"2025-12-13","source":"SelectScience","source_url":"https://www.selectscience.net/product/omnis#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 (7b426d9a8e47…), 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.