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.

“Very good equipment.”

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 2621591821

Proof data

Record hash (SHA-256)

f476cba008b20d78651e6e48c6b9844ab86bed4f865cb9f81ed30b032880e95c

Signature (Ed25519, base64)

eUb484lHQYYW7DtjUOlBHqlqIK32JwZhe1lDGYmMyxZcogxsKj8oCF+42izPdtNEIClyeacc9EoXdgJpvtvjBw==

Merkle root

80ef8d8174e5c9e41c4b3e86fd7f016ae3808fd6df1be7f458d6b538ad4a1573

Merkle path

["f4702bd6ec1edccaa2241ed678d2fa7ee8a93fada7c492fd0c8fb60e9ad19776","a7018f3472ca079d2c1614c0e3be5bfaca7372c20df5f6215dc87c1b169ab6b7","abd58f18e0386d93e498e72a91c613af3ac51cc299b97289e327232bddcdfcbe","64ceb16ff62cbbb6b73c84f6cbfb80f2df02868655396ee1012fb76e2d71ce54","8915d50abe3c817b258fd09bef6ba4a0cd4b42c7177be7bb0e6e58ad051f4a33","8f45157e12cf60611b9088ad2d6fb6bf168ecce6da40d8235e508d88cb3ff080","970c30201cd14ddd36812dc0a43395026daa28f36f71ddc42ecabc9c186fe988","e7ad953c69d53af75d48afe535bdc4ba2026b579460267b672e3ce47888e7b09","349f952a940aa969659454f8ccad1f3ce075f588c6c32a75cb86527f17c9b160","759cdea2121e6c221848c375f1999af33de568b492ae4a28682e006479197b33","2f3a5804979637a78e38f295e0ea8ec9ba450431f1c19420ab04e7f3348ca6c4","b2e057f6d3dc99e972525873df46d4f5c7cce951e4ed689e0187dbd2ed661f51","39e0a5a8aea0469ddc4b7eb4f23756e8c15e3b75fe42ee4002904a9576881ad0"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621591821 · entry 108e9186e8c5677aaebc…

Expected log hash

1103461f2f136c93d3dd608a948686a2f30160cf05200779542dada269979b94 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":"v1787890464756","kind":"published-quote","locale":"en","page":"subtheme:metrohm/quality/ease-of-use/en","quote":"Very good equipment.","rating":4,"review_date":"2024-12-03","source":"SelectScience","source_url":"https://www.selectscience.net/product/eco-titrator#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 (80ef8d8174e5…), 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.