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 robotic arm may be a problem in the future.”

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 2621233673

Proof data

Record hash (SHA-256)

ffb57dca0dcf0de8cfd940d485dd0d327b888a5d26e8921505fcca5e7259aed5

Signature (Ed25519, base64)

u6UhDYBHed2Ql6Dc8dsYAYPA5RkTA6gNd4yJ7LSGBLi1KcBsmPrgcx3/RShaYae4iPQibW6H3JvEkPm3ANXjDQ==

Merkle root

3e5b84dbb37ce6f75730ed2b32f91cd71f3a65addfb4db0a36bb6e93c637284a

Merkle path

["ffb03a78aa93203f6733223fa95f523647774333e365aabeb6a8a22fd2fa9de5","10c6c72910c767533ca0bad6afc310aebcf55880e82639f2f5811a6f87ce690b","7036277f67318f0b44d8d7b6314e8bce68b3aa00f76c4f7f3588b9d24a7eecdb","2390199c0053c2a9819bfa64b77b5d454f98ce140ab5f3a459d08945822a5b5a","f835968550faaf9e1449fbc6c695a37f4ea100b1152a7fbe03f8096ebec935ab","97a51659022c2766e240cc85f6d68aec621976f87f9e45b22ac1f71254360d98","279c142e86beece10015474821eaae7c9d896dc4edb0edc8f9589fde4924c1f4","56730803243d3b6b53deed240ebf63b5480428a954eb9b1d6850ac8b78db16be","068798de6084fed74069b5050a34bbc576a759d4b9ef39f395d1dd3cba82cfc9","dfb6941eb3bdf68ea74356601eaac1088a638f46255580402e4fa70039f5b5f0"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621233673 · entry 108e9186e8c5677aab9d…

Expected log hash

8f69f81c385ed6162582e2743ec87609f0e5a311201997ab1f656c8ded6f904e 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":"v1787884205203","kind":"published-quote","locale":"en","page":"theme:metrohm/durability/en","quote":"The robotic arm may be a problem in the future.","rating":3,"review_date":"2024-12-03","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 (3e5b84dbb37c…), 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.