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 simultaneous analysis enabled by the OMNIS system with four titration towers.”

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 2621712605

Proof data

Record hash (SHA-256)

db72cff245a99e603937d94a5a1fc77b6a37d3638a0238148f075aa32e81cb13

Signature (Ed25519, base64)

4DKbX4AnSPETmvaFmsi0AFIhqvfYy5MCz0q3XgWYT7cEZM+gqc6HQh5qEGEmN+nO9Ymk8/i9/Pt9RLLSKy9KCw==

Merkle root

25b46ff2419988f674720a0d9957bbe6130bde21af352d10a6eb7fa1bd87b90b

Merkle path

["db72768e967f3aace2c9c15d5048dfbb4a363f4d53ce7e4beb546a997954ee43","3b7de0eda081931c509f553b107abb7b07099d33dc3997f46870fe7a3feb6cbb","5acee8b5648806a2b063c6945f1c0a7a676c867a7eae972088b1c2a1c8849d1d","d26b1fe0b268d247b6e4fb9b72bb7efb48471e2e3b7156341c82063567f827f8","1a41d20615fa6fddd17d5bad03ed37c8d57e4ca953362527f48bc0c029b5cfd8","37959a43c6e4d026d1fcfb2c9a4c8b3836b04844a5ad232a4d018c9f5c49deac","eb9429f1052505a7be3c1d21866048b21a7ef8dead9fdc72dbc885c7e2fb471e","cf76f03d943c92fb089c4cacd9cc9b3d650b5eb650189502b2ec4d5978caf438","865cdba69d4b31061b1d0feb7246d9f9d0470e3ac3d081159f56801c8eaf2e54","158f66fb5db8ba60e2bddbb5e269a5f0f6ec7878e33579e9d7e69339ef7a507b","77ba10b937400386e2528999c3d1580f7cb6026702b6f9e59087c025f2b6654c","8e0d2bb32b7b6b793c0db0699f4e6cba1a78994064673eb44c378e1a9a269777","fce01ef8df707fc73de7966e3502123dd4f45228e1587b58dd482957409dc87a","de5967a743f2c070dadc15eb9e9e6844030fed4f4b117704648ba7bffd2bb28f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621712605 · entry 108e9186e8c5677af8cf…

Expected log hash

e2d66cf3e23cbd8a996b6d44d305e387793b999542b5186c00c4ffbadc30715c 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":"v1787891207850","kind":"published-quote","locale":"en","page":"brand:metrohm","quote":"The simultaneous analysis enabled by the OMNIS system with four titration towers.","rating":3,"review_date":"2024-12-17","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 (25b46ff24199…), 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.