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.

“Good and clear explanation during the pre-process.”

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 2621931690

Proof data

Record hash (SHA-256)

d21d54023f75e9174460833131aca80919aca1b67d83c0d8be4295b73acadae3

Signature (Ed25519, base64)

IW8H8utljuoFDHbg4veOWAr9LdjkZ9SMBj/svrJaz/NQwWy99xykIMHcAXZT67m8oyBhyANtcUrQ82b8Uvr4Cw==

Merkle root

1ee209bed1b4afeeee81ef09190ce0d3b99a421ee0d9b4b532771d9d3d94cb97

Merkle path

["d21f44b19e9b75c78f007a10cfc9e3e8501e9d76c8b4c9d8b9a1bebf3bd891a7","c94a3e69e5236cad64c757571d5901f7ae2214774736c9e3e8d1cceb266cb81b","27d636b120961bf5e04353cb4f5fc4329ccbdbfafbd93c69b5175fdeae80bad3","2bf8925c11064e97b7138c460a82e5b125b8bcc5dd5341a8718ed6b08d3054d3","ee7ab82c24833d24543ca66960c9aa1f4b566dd60f2d239d9f8637705cd8afda","efb39d3d1251538435e543a0c173be89b0539acde6400fa4ac113803b204c250","e4b103e6e0b17f3cbca85e44db2b1317cea2dd408f0ddffc666ce67b230b6db4","800dbdac508a47dd826cc36dd9bd53b2b77b5ac76538a907c4959095372f471b","76fee2614134c773ae3902ccfa29e1b0bdedca683e969c21de7e5307c595d195","262f8eb8676ab052d434846061e2c85c536e3271ded6b00c9af176520aa6313d","571d9bfea17d720b62352c507c3c07f9f0ca30e261bde739028c500ef97b815d","2c21026f7adbc01ac1c174292e7648e81dc38c241fb6dd74110b785631d709b5","42cb666356b783afa8f0c0984c4e26213377b06bc32327618c7015cc204d7621","7b31f8d99c794d48940c99b1c3b5b8106ca056156cb6a2be977db9fc7d95eb55"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621931690 · entry 108e9186e8c5677aeade…

Expected log hash

d994a621bbbd8dc49979b621c8ed37c232baaf4093de999a10f35ab0baca4376 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":"v1787892752320","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"Good and clear explanation during the pre-process.","rating":4,"review_date":"2025-12-15","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 (1ee209bed1b4…), 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.