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 equipment is easy to use and very accurate.”

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 3258717636

Proof data

Record hash (SHA-256)

35e9456d9d14cca5e7861e2f6954ee4cb60a83fdf3fb020dcc1de8748a55ac12

Signature (Ed25519, base64)

pcYWBUrofGqEPIPlzGVqDpwRneTFR4dx+HRth89BmTxcfATPAwYlO7/nwGESaXn2Frhdo0/SYb4cQdk6LiunDg==

Merkle root

c1d49fab62e94ee1796f3eb15e1a21f856756e9a68ad117a17ae6c9694ffe1e9

Merkle path

["35dfe99158d49fecbc0fade4924a41e1660777d50432673da09931c230558000","9f419a6c2397c94d9a3460e4654b84c775f9fb5249a533157b7db1836fb401ca","c1c7b0d04b287dfa727a6c4b2d7caa5afe5ce351011a931dcc57b39f287bfda6","c79c101bcc05f7c5d1d91918d076e129f7cb897ff23d35f28801943274da3534","774f8e25ff8b949e6f3ce86c86b22347a1e8ecb19cbcbac2ffa30b7fb28623a9","39c77291756f7c745bd0055f95b789e08901f8cb0837f54aefcd25b56684f347","6dfbbd428fd4a2665834287be527f328e1662f062a4965d9aad822b033815bd8","39f7c3f3d17e616832e509c7d73f8619fad6f4e8ef09dd9f354162e85baec58d","3a91dca334e33f747828707f9964f8a92281d76c77e2e07ab533a8313d9d97b8","51913960b6297af0ff0f51bd451ce3d5fca40133f0d09b6a6badf31e1debf664","bae8b40a47578cbd5f9891dc5e5733bd44ef74545e36971d3a61fc2a83b22b93","9596fe45b06313e9f5998895cbf556766fc4e5e93f892ca136b88ff88cbd99e0","856d9a6a3e94d695a98fa0bb5ce8d80e9fc70a3794652b53ea754ef3c0720b7a","436050ea3288f64644ca44d910bc166b737265d33885dda72495c78f7429279a"]

Anchored

2026-10-15

Public log entry

search.sigstore.dev, log index 3258717636 · entry 108e9186e8c5677abf47…

Expected log hash

30640a6c2a3bbbd5aa6e5244e634da7339a6d42d7209b3c3a5dde0fcd662474c 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":"v1792034121129","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"The equipment is easy to use and very accurate.","rating":5,"review_date":"2024-12-03","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 (c1d49fab62e9…), 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.