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.

“I have had this kit for the last three years in our lab and it has been very handy and user-friendly.”

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)

e9c0419cb2b46eb04a97242b46d0552619aeb5042259321b0d28235ff67f6322

Signature (Ed25519, base64)

elU6UPe3SgOrIVGD25tYmv0chF2KWvRaJAUqUZTgKUnSVx7iGr3kgFJPO623k3CDGR0kJ9Axj4Bb3WMcD4QjAw==

Merkle root

3e5b84dbb37ce6f75730ed2b32f91cd71f3a65addfb4db0a36bb6e93c637284a

Merkle path

["e9c61576922dd5837e83cdac1df0942b764caf2f2b54dc42ad4bda31ae339bd4","1e135ba94de08f94693855aaa856d76b2f53912741fb65ec1bc127e731258fb7","89fa1b3036dddea2dab9ffb9325454c46666782f27901ba4abb83ecedd3db0ae","671f4491432470f190d599ff709a600225c663b6b74acea57c8db4284fbaa4e3","1ac2f003e143e15e704a20caab037a7f4a60b2d2abc02d7eba7e1e21acafb546","02bae3d2ae694737d577fccd2ce212f0e7a0f58cc87a6b3a2a82a9335c8b2531","d8b4cb3ea154d640ccc407189ed558a3c0f2ccc956e8503c60bde48f6aac830f","7e21c36f27f364f5b4e2e8cdcffb67cd697dca13d7e44d1adc13887d7302bc42","200a42399646d4c0ce9541435afd047d9dd63166f1bad4b81f61868bffb7134e","2c9d6afda5d717f54daba07f8df6f2596d5968c648d2eb6ab9bd43ce3dcdcd0a","a2d070737fe6135d54412488da10bf021e2534c1c2765bf94a1c7eee8f03a4ac","3470013368f8526e7d9e97b6539559e3c47b864ca12028ee8e2225ff356ce9aa","43b63800d6387b433043b5f497519d5532726c6c4b821dfd3f268ba109f8a087","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":"I have had this kit for the last three years in our lab and it has been very handy and user-friendly.","rating":5,"review_date":"2024-12-11","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.