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.

“Zeitnaher Support und gründliche Arbeit haben einen reibungslosen Betrieb in unserem Labor sichergestellt.”

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)

dadedfc2c8e0bbf5dec9182fd0d05c11572d35f9cda949b341b24f424a088164

Signature (Ed25519, base64)

KBswN1AMU50r7ZwPO1E37+XDsDJubO1giz7qz9t5rj06zQ/AkVlaA90ghNed+IbP6YSeWf9UCaWZN8C0oZysAQ==

Merkle root

21e7bb8f2fd2dd8d8171a23c0a79176483db4731970a3fe8e0e328189fa103b6

Merkle path

["dae292cae7ab4763092fe3c9fac0e38272c212fced98c10059a1f988cd326467","7c4e3740dbacb05ace82fa9827e18f57590b75364ee0294817c4812488fbfdb5","7436f16f2329284599253a45a12208298e30e592e33d597a543101c1e1d7a54b","142042590831aadf12c71be534f971982a15c5aaff8eaaa687baf6b2965ae994","5e64b8dbe92f92fc5abf88f179402e568aa7b5e208ecaf5acdf1bca644bab581","47970d6b9d06762e34ec12114405bec1f0a01ea5d1241b97b2b6b8848264547c","b54f4f8a67360b7c83c97661b6f0ee2341fa0c31f2cd1693913e236dead476b6","13c59fbb4196a8628f3586300b3c5bd6753bfea28f0577b4c7551c497ae91125","fbd909036844f65ebe5d48ddf77f769eecbef0029776bef6ddd6630b27f298ea","2323759bac147fab1521643fbceb88fa1ddc1013fc9ad616545d3650f03f0bd4","712512a47f3f11545cb072ff6e88f06a5c3911599aadb627732eaa1d0abfd078","02a005445a113c3f4be052abba411b4eff2a46b953d7eab47799ba2bb5a569d1","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/service/de","quote":"Zeitnaher Support und gründliche Arbeit haben einen reibungslosen Betrieb in unserem Labor sichergestellt.","rating":4,"review_date":"2025-12-17","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.