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 repeatability of the same sample test is very good”

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 2621505474

Proof data

Record hash (SHA-256)

eb3ffd7cc509c443c57d3a12f7c9a668815cbbf44c908a3929669661f1945ff0

Signature (Ed25519, base64)

ZFZ8L8V11kkb3hH/VMH+ZQGuE7q1mwmjSa0eZVn8vQuUWwWwdg7iRpxclP0Qq19Hk8HXEXLR+XmSmnUMKfIXCA==

Merkle root

d07487a7d8598747d5b143d9a16722ca7a83f5bd36bc79d5bf9130c2672dae41

Merkle path

["eb390cdc455a494aaf157f28070dbed98277db8645c0da7ddeba88cd3d7d5730","8422641dc0ddbfde084e7462b38db5a329795b01df05ff31ebbf667c7d9321d3","6e23a6c1fcf5d6ade19bd395d833a3243f778114bab99d2838a0169d6fda717e","58991dc99d8fc4fb9eeea8db6c289add259e602eb52eda583df179c88c24e4d3","5050fc253c99e3b647cdffbbc32f725a008e6a7bdbbfd2cde38953f7a2024cbb","5e4782df8478360d3930e91d17c07ad48aa805936bea26b00d1496094f0a606f","ea393c6ccb39618be60d0f9cf10d86d11b98d0c744448c50abc69e7b90c4d7cc","0ec2452e7b273f0bf9a94d4ec403d4d35a52ea52ec5e786a9d89a1fd2f27e661","e48c94e4643b27962f05ca1be451b655a20672f025d8674a0b85e9d7d9b2335c","55d3040eca1ec7b9d7f36c094edee749f3d40ad5e24efeab28d3e746d0016888","dde04501221585b3edcac82f28b73f6f85d04306c70c367a547e001202650706","1db8eeb72a832ef397ada98504c0ec0287f444e0c0c7621027138bd678c593ee","911ba8dcde13822360ea6fb0819baf610395bb7c340acb6748efb8a9ea9a5792","8b493634c5f80ca26f55160c398064560cb8d0eb1dbc3d1272d6851dfd141a81"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621505474 · entry 108e9186e8c5677a1258…

Expected log hash

7fc4ddca6f65b68d7bb8897b96188547f56c1ba672ff212c685cdf4bf7438da9 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":"v1787887633012","kind":"published-quote","locale":"de","page":"theme:metrohm/durability/de","quote":"the repeatability of the same sample test is very good","rating":5,"review_date":"2024-12-09","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 (d07487a7d859…), 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.