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 OMNIS titrator is easy to use”

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 2621349433

Proof data

Record hash (SHA-256)

f6c4533bf15a8bdaa0bf99adaa9b47e738573906d4c24d33f530993777c187f9

Signature (Ed25519, base64)

p4j1FOUIlb3KmWTG7jSq+lGqe2ar4YH4VjVlzhJBdbUH3gltrpjKMDYN5OomSkgxCSOU/qdHjbl4Hi8wJXbTAA==

Merkle root

52b348c94f3fdce59db013e2d8b151833bfb9c02163bc60ea07ad4321b96c806

Merkle path

["f6bc0e2f8984c63fd06e0ba575894715f1f25d42aa835a5419960c3193ae43ca","12d525a3d3406b1a865c028bc59125658e6a6833ba70cc53b9f3b4bf38387c6c","b44dbfe724682bd15fc0e02672428bd6d977cc60be997126d3319bf2f5d135bd","c90b125482db95b548e7918e03ac5b1d428da682f660001d9f073ffa601a7194","9be087dc18c28718677b4352c8ea261d2e51c0e685583083c7d5c3319a8b0762","a355e46f1c4e30843b9f3bfcfe3ac7c0d7728119d1167a029b6ec1733e3cc446","16a0ddb71816f46cb7f0d151c2eb1c8edae92c0c69f1e22e46b7c9cae12e0c6b","c74ea1d6c8585ce5c1a6f1c76895e301535e5bde491652899dece6227454d466","6fa927480c4d993229c842faaff33fb41bc02709bf3943be9daa2fbaa0ce7be5","39b529ed45d3da2d2fb6bbfad4a62113ba03af0294427e7c7c99e61ad1abbf8a","78867e012d4f81691a9b086099a3f900db9280c693f9bc94f2ed9e7d69eb59da","3a52f24592ba5f4bad559e917d6d3df45e954bc2d49d87ad062ddf6c6df26fc7","229c72486c3c5df50dc0930a08ed11a178309b1ce235a21e8ba3f4673dd0b361"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621349433 · entry 108e9186e8c5677a91b8…

Expected log hash

c0c478568c16caefc62b4dd151387aace853e1d48501c09aaebf0c1fbe3c7cab 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":"v1787884935070","kind":"published-quote","locale":"en","page":"subtheme:metrohm/quality/ease-of-use/en","quote":"The OMNIS titrator is easy to use","rating":5,"review_date":"2024-12-11","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 (52b348c94f3f…), 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.