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.

“And the service is excellent.”

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 2621031423

Proof data

Record hash (SHA-256)

d387117f7158005277013216bd0417dc2a41383103708d52b13c715b6b7ff2ce

Signature (Ed25519, base64)

u9owBjn0Fu81DHSNX/lm2K5kAj8WXmMQk+U81nf1DXS7DcA3zuPtwqSNygvSCw62h8AjNKDGXaq0MsWt8+lIBg==

Merkle root

660baed4e0377456de35deaaae5175a04c7f97eefbd7e4cf12622ca3b4d2f1da

Merkle path

["d387f3b988feaacd2d2f9836b26290aad2d3e15af4a55ee39b5309c4ea3c70c0","81b0d4939202d854cd25b91c55d9cb41b704ff40b1533b72822b3af5472c66dd","0183c362c2ed2e9e4359016903dedfaa716beb3240f610ee49b3ba7e8011f54b","7e4e93f5d1fb96260712dc3466573297c3f29f0a99fea4bcf717a7c92b8eb920","80fb23d49c2e47477fd461ad9072e46a2a9b57b7f1de4d3033098e8ee9bef8d2","fe8392d22b8384b8f6cb4d8916e57d4942ec50fd3996c56ae30e2a76cc6a8c0f","754810afeadba5247a32ff997761c502cf71677497d01ff86f5773e286ab1eab","6eefd4346d4195130727099e327c48cb4556cb26167c137865e7db2107833313","121aa564380b048e9d5bbd3a974feca906922feaaaf7e2135c8aa72d429ffbd2","22b18306f1ec5b0409a18d69604dc5c7f2a2ba1cbe3a3c91fdeb20705b588af2","28b777d96cf330e637bdf33a280f8a8afab79587edbd43757e95c5e121e335e0","9126ab9e4707504bb6b831b37d26235ea8428a6e135d34c54ec7eb0ea3851b72","d340ff50faa9e55eee68fa10c2d798b3275f5bb42a8e6bf1574b90e56fb5e3d7","219f110762d9a2876544fce3153a1e21990a9bb0af8ba807224d206becf0a446"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621031423 · entry 108e9186e8c5677a00b2…

Expected log hash

dab7f5bf20d800f31a15ae5236ac5dbcde0614ca00650d0e0adb5266739266b5 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":"v1787882628316","kind":"published-quote","locale":"en","page":"theme:metrohm/service/en","quote":"And the service is excellent.","rating":5,"review_date":"2024-12-10","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 (660baed4e037…), 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.