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 Metrohm 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)

f34d693ef6c4a32ac8e571b17e42e391b600fc8748a8b278205a5f5dd62729fd

Signature (Ed25519, base64)

xs3Ms4deXt6mqzc7rj0TmGsE/mv7WFD+aoIic+Jyn1aq6rY6q3vgUJScXUGEiaR4Qy12Hy+Uo3ztpiA4HHkiCA==

Merkle root

52b348c94f3fdce59db013e2d8b151833bfb9c02163bc60ea07ad4321b96c806

Merkle path

["f34e9fee31e3526c4982f094dea6d82acbfa7acc7fc97d61f15d0f97fb1f86cf","faf25309738ac63d5e9a7f3c3f6adef9a0fe4984af909e5241dd93db184da977","c5b59bb073c4b33ca3bae44e0a1657578488829e7b2d8facbf00d183d69dacb6","eb7a551196f3d605668f5984369318e35c555bbc65a95d0425c15f3690f23697","090d55c3f90eb933e22fde1e61fc8d9c9ebe181380acfd21aaff5250c5f49c0c","6fa141583ede705447549c248cf82d5ce3d6c4263cdde74b64ac2bd590c19ad8","abeb6ea9370d45459925b12b30c230a6d3cd7ce23bce8058ff45e3aff60eb803","17c3586a2ac6e65a4eb4edfc276a01e4c65250bd0773973b32c672883247d36f","a21fbf339de0dc98196ad5345d9d020d668b5ebeaf76944bf2f885fcc81841de","3914fbf3f55ac5cb9cd5129ef2686a109b1891c4f461d12d8e05b8e1db54ca19","87427c755bb6e19129c361e157cb48c417277c3802d44810acbda0aa3e18b611","9470208944221aa57b2b94fa955f3f96423664f36e4f688ec0e408fdf0c33744","e9ed1d10f397b1ad502a8e8471e1b657f525f8857ff4399f27fa4a1eea64c54f","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 Metrohm OMNIS titrator is easy to use","rating":5,"review_date":"2024-12-05","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.