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 engineer, Li Hongjun, was very diligent and responsible.”

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 2621946731

Proof data

Record hash (SHA-256)

ed55ebad5b64d737b42e20cd80b6b351ce3a93da4408630de111570ccae7b516

Signature (Ed25519, base64)

x1aNRKU/fAb4IlY/8tGpl7q6vwHyqLOrc3mS3kRx2cPRUDujMlrYOfOKyebKqGjzlJjgQBTRR9yeQsI8ZAhhDw==

Merkle root

3dfdf7381c8d7ad52c2e382f4e16b6f321af764e7eaa340297113fa50b9a0792

Merkle path

["ed57f05e56c5d473b85cadd80e16c6a89024837d686aa13e8ed034a20cf72636","58a8d461b3cf1f8d5d1da7a00960470d5b8fa65a0d0636103b78fd901d6686bb","a69510d75f7d4df07ecd018020cd20d18ce42be9307eff9e78a73690690e9c5a","37ff059e938edbb1276292498381e5b6a222e1b94930d43a0093e708733d66a7","950e2a4c6438537fd701a3f90b51851ced4b09f20ba6e474ea4ca1a3564147a6","8d6eaa619610512a75aae8af42498dd667d88c148284ece5809a3fa4e51ffc86","5ec021f807affd6675665c7e9a4a87614d3693892990f7140adf13219e7ad1f2","c9b56e7fc3ff4cfd154467c8d2bb500f76bf33a8ef648d7012d1e254cc302a80","4ed9b2c4c3f0ce045ba1341a972668c52fb15dcc7e58d40f5be58303fee80dde","fe83f334033a49b6ef287a82315dc49c98f74d825b93e7f5057e8257e771f990","5b887676e7cffe7ebdbb98632e453f71a2955c2537dbe98535ccaec824346856","b8a4c33142c5ca8cf32fed12f73a84dac2b8094486f25a467e105e5e122c9805","be27a0191ca6ab7325f4c0624678ade47e6f5fbf47594f3e9c25afc28b5ae715","71f08c6b7e682817b9a4ad4f77f63e7c1d7b2090849a76f88e1644ea4a33fd62"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621946731 · entry 108e9186e8c5677a0a42…

Expected log hash

ea07e2ac95e2432412286c8e9f169e876b2f38f9762d26c0a0ce3cc128edcf3c 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":"v1787893493942","kind":"published-quote","locale":"en","page":"theme:metrohm/service/en","quote":"The engineer, Li Hongjun, was very diligent and responsible.","rating":5,"review_date":"2024-12-06","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 (3dfdf7381c8d…), 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.