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.

“I find the software and the kit very user-friendly”

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 2621591821

Proof data

Record hash (SHA-256)

fb871a719e2e141df0808de7e41304b2e20130b5124fb7e18d3f7ee2b917af78

Signature (Ed25519, base64)

vnXBD5o5q8aQZSjuR67iir69tNmVyDam2kVRj7fWlF8fFLTWUs5dw2fJQXFiP75a05eUgxp5gYDjeQtHfg8RBg==

Merkle root

80ef8d8174e5c9e41c4b3e86fd7f016ae3808fd6df1be7f458d6b538ad4a1573

Merkle path

["fb85de2a3adc7f737d6764f74b88618dfa118aa0acf71e177d47c2b342c46cd6","e825a796f309fb57dfb56502749e5de1645d7177b9561b59865c4d2082ec154c","0833a607505ad47857b24f53e361420decd576e02dcfc59d9a34a4061edd5029","70ab0314c9b9d93f0de3db721609d8e75724d9252c830ca5fcbd8cecca8db241","ead809702565ef0b48f04ad24f81ba3897aaff07eb15196b1b9afe1e6c9e32a0","ff98d58c51660b7b77627131c190805e42e557851a6ebf8bd99805d023c99e3f","454e64684328d503df798af4432d1e2b3c080e4aab6e08806c64cd60d79dfe95","863abd77fdc1524649683d0a1a4f39d6d0e623b9dcedc877a17255f98c5a952a","eb81c3ae0fb97690df1a81b517cb95e4597a245cd432df782e6d801f08a530cc","ceab82280b174211c1c5f5ac4fab6d2226d5369b9db871d8f7a3b842b2d8505c","2f3a5804979637a78e38f295e0ea8ec9ba450431f1c19420ab04e7f3348ca6c4","b2e057f6d3dc99e972525873df46d4f5c7cce951e4ed689e0187dbd2ed661f51","39e0a5a8aea0469ddc4b7eb4f23756e8c15e3b75fe42ee4002904a9576881ad0"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621591821 · entry 108e9186e8c5677aaebc…

Expected log hash

1103461f2f136c93d3dd608a948686a2f30160cf05200779542dada269979b94 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":"v1787890464756","kind":"published-quote","locale":"en","page":"theme:metrohm/fit/en","quote":"I find the software and the kit very user-friendly","rating":5,"review_date":"2024-12-11","source":"SelectScience","source_url":"https://www.selectscience.net/product/930-compact-ic-flex-ion-chromatograph#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 (80ef8d8174e5…), 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.