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.

“sehr nützlich, Trink- und Abwasseranalysen gleichzeitig durchführen zu können”

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 2622255255

Proof data

Record hash (SHA-256)

f13d1f126c3a4c14a4d585ac7ade7c21c9e8735330ca38bb4351325ab869346f

Signature (Ed25519, base64)

iIfc03D9d9IcZVqtuaE8Tixz3M63khGT4EPDAyBV3izJSvAqXb0shevCQSMBlymYO//Mkdco/d0DNDDeb6I1Bw==

Merkle root

21e7bb8f2fd2dd8d8171a23c0a79176483db4731970a3fe8e0e328189fa103b6

Merkle path

["f13be16343e16b23b561f8d443ad81c5c11052315ab44b1367cbd5824e43a529","3138a07d0d20fc845c1ceaf0258197d50668cb36d6747a31199fdf64d72e032e","5106329c613451333fe0ea624cfb76f90a1382659eded81624afd3250af47465","cb599c07fd8f046f25b518100c95c65b493a9101a35b07a8e7a514da5e03aae7","f5f59b767c76ca01d55eda7f21a18829f0fc5cc520a6fb03846748e78bdc325e","c13285b63d447224b52090be410942c85cfdc4f9ec3884a02464b33b20c508d6","1031c1c0244c637522a9db3d01bb9854861e3f00adc08196f7d7639e101e774e","a2c354bccd4904207fcb5f85c84f44361ee3e426cd08047d79df629781e917d9","626d762e7558770d1aa6e32ace8a09a52c1604eeb6cc9c73956b8348f2d6a055","124102c5ff2e28252a7def1d56dc16060ed063c315fa36d40c0db67ab18f800a","86a38c0fcc2a0f58e73c1541cd81a9d4d59236c6cad8d8b17ad2e150865bd82c","6e0657ef54ce5a26aa6e53e6acb50333540606833b5dff9dfae3fd631d2d5a6d","d87974d5c94f3efd5c6f3798372ad4dd7ab166b2a7dda721b13f924d617b3784","1db6a684d2ddde304dce7dd32015445ec4c0ccdad689f35384be07da0c8e852e"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2622255255 · entry 108e9186e8c5677a7795…

Expected log hash

f2a0e8f2b4dab3949c746be15f65076279656fc5309daaeff038c9a778ee0653 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":"v1787896781880","kind":"published-quote","locale":"de","page":"theme:metrohm/fit/de","quote":"sehr nützlich, Trink- und Abwasseranalysen gleichzeitig durchführen zu können","rating":4,"review_date":"2024-12-02","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 (21e7bb8f2fd2…), 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.