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.

“The instrument is very easy to use, with an intuitive interface that simplifies operation.”

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 2621523249

Proof data

Record hash (SHA-256)

f25bbf7feb461ff688a69dc9eb324811e57a3d5f3b7489980a2d097887c8221a

Signature (Ed25519, base64)

R38dgBT3oN+F99Y1R0HcoAewKmrsNspPzUJdgTP6yFqcBk6uLj+gvkp54LNb1WyoL4/SBDJPQC8SjTgulhPVAg==

Merkle root

6471d9991f0d0aacdf442d5cfa660f2886071005e4c3d26a992a3bf38f0a7695

Merkle path

["f256f2a0fd376d7bb2f019c60c6980107ec9d5f3c3ffd4dd2eef3ad112e5f4aa","3192fd1e9ad5d2fdcfd38989dd0e84a767808453182fbc0a18130d0ea119e9d4","968b859cb44d380c1b222c552027a6fe05f8474e7e8d17446ea679b1bf5a4989","f4ed739297dc0e17b674cf363437507ce5a8f0e638e6c23420e97560ecc4c69c","04f9d2ac8ea5425caa94932d0afc3bcf96ff60e6febb560fe72b2b467f12ea5b","00b2ae9ce38f8c10566c10dc5687663917b02546645d97c36bf7ba4e001a5305","587ea7ba000fe341d1654d3b388cf43aa349e6f43c8e8067ef683e0ec4965532","94764dbc3d440ed909e60f4811c70bffb000736b962bc448706606e55a135ddd","fa235e0bec0349def85324ee8de4a8944b0876da3765331ed59bf90dbd5d0821","f0ea50986067a968e1f9afd202dd24c68f8f13e26e0901a75e86581c6b3c498f","6acfa49a8072130f340287c55a7a7c52b91e8d8b6ed725ebfcebfab89c41121a","9e52a96e940ff8f58b748ad309e07f052318d3789dba0df9b70e9c189d3b0790","5df97f979096b2caa740246c954e676bc84d165be6dbefc79ca41afc00af9ef3","cc5942773edeb6f1cb740951ef769ef0e7d229b32c06f61e882e119d00c000ce"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621523249 · entry 108e9186e8c5677ad576…

Expected log hash

644ce1c7a13e9edd388468f8e29bb74f49a15185930851951709e16eaf23744b 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":"v1787888369667","kind":"published-quote","locale":"en","page":"theme:metrohm/quality/en","quote":"The instrument is very easy to use, with an intuitive interface that simplifies operation.","rating":5,"review_date":"2025-12-14","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 (6471d9991f0d…), 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.