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.

“Good and clear explanation during the pre-process.”

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 3273174405

Proof data

Record hash (SHA-256)

3933156715da5d9ee6472f56a92ea6c13009e83c4c769b0adc6b1ff221d3de54

Signature (Ed25519, base64)

lm2BSwjSoFal1hE2pSKI1ygLDSI/2vDUSXC7Fh4x8PzBYYOx1yrEOeWMBJOhSfrrIAkgMHafkO8CZoVMlYCkBA==

Merkle root

a69839899d35e428e965dda22faa8c37ab9f1f9e8354c5c301a0cc1dd97ec994

Merkle path

["39262b54722e5496a7fbdc113d9bab25979e64b97b3c86335d18fb282193312d","e3973d8a610f0f79c9fe23a883c1e630965b3a25e016c9594283943e74e7ac89","dcb1dc7b7c5f901f93b3cd02d18b42722911f8beb89ed266808d91aa5fd31776","ea8c72c694ead1fb8a8a3edc47bfe179441bc056bb3423e648fb12ff4abe2f3f","e61a9a3c4745d2dbefe66eb5a42f8758ca4db60812420ec3a35e5096bd16f0ff","d69119d7da91e97e9a34c3c74e2b68995a043891fed458f15324b135f09654b5","c86f63de734f966845d3c69b1fcedd7e947aa071123c7b40c4480fb1274cfb3d","e3f102b1d6c1f7e6e2bf3d2157c4d417a9d31691cb8690c47cfdfa9c942b416c","ef92b7759c62bce39213c8196a7fa529eca4cd422dd5829febdebb164b5d7cf0","b2b74af50518a1f306f8525b8b7fa6ecdc7a43a660af7beb61e58ec4512256ae","a002bc0c72423d1bd85b07794167368c19228fe2b19cebd5eb8139ab424aedde","305320b35ba514f4d8f94389546990cf7c5be80bcd594b5eae19d725e9dac391","c91b6bd41b0d77873850967d2a33b58afe5c9b2077c41a3bc5e3eb1e0269e91c","baf50621c43237ae6460207428b54bf7432b36069b72ded7c303da6c80c67c5e"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273174405 · entry 108e9186e8c5677afa7d…

Expected log hash

a8603da072baf84665c1f8a43f623ad1abcc708773f195fc7b697ae45f09c136 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":"v1792120797404","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"Good and clear explanation during the pre-process.","rating":4,"review_date":"2025-12-15","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 (a69839899d35…), 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.