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.

“Sehr zufrieden mit dem Produkt.”

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 3198489507

Proof data

Record hash (SHA-256)

3b0ca435415a97546ae7dc32ff9246008b231c23b7a73948d55dbe8bcf6daad8

Signature (Ed25519, base64)

N/G3avff0S0/SHOGWvhzBelSDh/pfXHDF+f1QNc+3swHPXW+ehcvsiOHUUeaxhNvwI4vrEMYawL9AMRLRqYRDA==

Merkle root

240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494

Merkle path

["3b0aab6205a3db7a566dae19ea0649e95bbd03628ec98d4b4b556089cf901a03","aedb8c50c52c681124e6c3bd6cbdd07eac3fe24a25a0e40f5a8bb324dbca4292","3f68fc6d89549e34b72228647633ce4ee6808551bd808106a0dae13f75c08450","a53884014453321e9cefac5a08e5dc45a9939a7db564c27f12d46ed7a55eb084","256bb2a4653773cdebb8334c72ee02c5c9b659c01212905237f101507369fa27","e0dc2611069cc1d95174cb78c94c5ebc7bfe433211e3db6d6a42b5d2d1751bfd","d32e1de5c91fccdbdabb1bbc4b765a18c2ed96758344a99cc38b2a4da246fcd7","c21d275fb8c5f64e880f49d1912358fba87f2230ac0016fc1223893691d55ff6","3c543ad1a46d40c7b056f94ac1555985afd26d47c04d27165be4c8d55b120faa","5fc967491524dc0ae9826ee91d4e079c82057d5cd18390aa22220fa54e7860a7","d403f355aba4dd2db75e94889e9f1350403fb1a3c8e86c27b49f11976f903f3f","ec9ecaaf6ecd25e70da3b6283bf48b73edd2937bdffac512199306f1e5863dc7","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…

Expected log hash

50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"de","page":"brand:metrohm","quote":"Sehr zufrieden mit dem Produkt.","rating":5,"review_date":"2024-12-04","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 (240cb9349179…), 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.