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.

“Der Metrohm OMNIS Titrator ist einfach zu bedienen”

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 3163461995

Proof data

Record hash (SHA-256)

3b0ac121123376f4177a0fc9c8ff795fa266d9f81c537a1539072c9908ac7994

Signature (Ed25519, base64)

8QMVgcPm+HIwsLHF7K/LGg1W1lpOsb3va3L2Iw1lpuf411UjgcunBvn9prWrW2gWnxo4Lgc/QTzx6grmVsDIBA==

Merkle root

f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2

Merkle path

["3b06f57eda86e9f2ce2e3d3f2c1c8a8fd3b8c70ea0a03661ad32b38dc40797ba","76523ad156b24251fbeead017ef84df8cf365cf09627bdadb51eacc91fd0f061","a3d22a73760a2aad8cf38d5a79ffb5508c3f2c2ce58e4eefea76e681b7ae49af","2209c393d4ab65f201cc05efa72820fd99b17a6f65c18d1e92fb52a05132d9e7","e0fa2b40c660689f7f1071390d8e9c8cf8ffcf4df98aa4ef085cf2093f126cdf","664a2accdf6bdd4c2488e93c83c3f74eb552932809ec29571351a129c4907dff","be35e18ee6f28d4a8a7a0e0115098566a58b29fd192305a1a2c920d7310060ab","44880614dc02339c3753ad2b6119a2852808d3190de4a04af610ef7bdc93aff3","d33a0faa7e539cd306b93fe2609ddd365b8b42a7bb36ef8951d5ee5f3196f2ab","5b2408da5439c0120ac362ea7527c3fdfd26138b2b8bac94369dbfb754341687","d1931bfcec17fe831a2fbf259b6f3318f1d317196fbac95a2735a74f91cc308e","715d236235ab3fbaf6a917957cdd41b2f2237b3d300a52165824ec6ae8022bf0","0e0575856f98ffd7554131441cee6df44050461e83f56abb9d48db09201782da","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…

Expected log hash

1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"de","page":"brand:metrohm","quote":"Der Metrohm OMNIS Titrator ist einfach zu bedienen","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 (f2dea3193623…), 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.