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.

“Josh from Metrohm did a brilliant demonstration of the software before purchase”

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 2621523249

Proof data

Record hash (SHA-256)

e226b0e841e1d710db6dd5146e8ea2dc535313059e7f248596223945dd3c87fb

Signature (Ed25519, base64)

veGuC2mslHjWYaGuAepkceIeu4+XpjJdzx8Q2bPa63CrXVT0c8+f+ZuPV2mJgXMPoP0p46/qXjxntawk7y2tDw==

Merkle root

6471d9991f0d0aacdf442d5cfa660f2886071005e4c3d26a992a3bf38f0a7695

Merkle path

["e229de88c99a3a9f78f5e966352057b05d5f3323ee182c91231606c67d7ef91f","731d9c680691245a500f7c5dff591725b74141d076f22fcd5e2cd736949edeac","71b4aa0b0bf74c7c8921a03266ea3cdece622ffc74eae959a428ffca943590cd","b3023a5c1ad15e40e37103d12840166e09e44f171de841909ca94979e74189ce","78febb2ad420be4083dcc49fb88af8af1b52d3c715df1034cf09431b1436dd4c","08b1bc7521e315a5fa01bb956d45b046d3e4469d32871577a8c225cf4c5de963","acb81ed7452d7d95a55414ec9325e37c21182005222d3113b7e76b6900afe6b9","49f0941adf128d1357992be49b4527deadd7d47781f3010ba41a85e5d0b9b356","d0c524a5601e3089b8658d331af4e9a484c705ac3a49da0135495d90cb3f51a2","f2f81bbbcb0992de72a71b87422ec3872e65064c7d4180e8e56debb533efa522","f6d016eaacf2e35b2811a777064e1a69d2c65995413758b0a228b9cef5a855c8","9e52a96e940ff8f58b748ad309e07f052318d3789dba0df9b70e9c189d3b0790","5df97f979096b2caa740246c954e676bc84d165be6dbefc79ca41afc00af9ef3","cc5942773edeb6f1cb740951ef769ef0e7d229b32c06f61e882e119d00c000ce"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621523249 · entry 108e9186e8c5677ad576…

Expected log hash

644ce1c7a13e9edd388468f8e29bb74f49a15185930851951709e16eaf23744b 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":"v1787888369667","kind":"published-quote","locale":"en","page":"theme:metrohm/service/en","quote":"Josh from Metrohm did a brilliant demonstration of the software before purchase","rating":5,"review_date":"2024-12-04","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 (6471d9991f0d…), 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.