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 repeatability of the same sample test 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 2621712605

Proof data

Record hash (SHA-256)

f45a835535d819fd802293f4ed2ceb928ee644238afb9748222ad45a269c2a99

Signature (Ed25519, base64)

6evp8nkE3a27XmBkK2k1WaBcUIsl2KckSZSvk7LvU3S55Xf45rRHTyJT7CzNHCt96tceMwkAxmgQ2Dh0qoH0DQ==

Merkle root

25b46ff2419988f674720a0d9957bbe6130bde21af352d10a6eb7fa1bd87b90b

Merkle path

["f4576cd5227210da7b15a07975d3ded2890690f712fcd0da707312753618df1f","288265de0e4119d5d4e46ba91b808dce180ffb533d9eb5c03dfd2e2c59d06f7e","c1ad621028344fe88e256e54b6eaf80acde148fb683080dfc594f4e540d0e728","266b287feb81d0fe8c87d591d764a10e0f7e7b18ba1573cdcca04f3e433d3ab8","7c11f4e34222674d812ff2c9fec63a30f28d4ceb40ba7b253e1f96e937579d99","9039e99d0e42eceb687b36b5fe0fd06d9791142fede087cf6d83aac64158f826","880b20b2122cee9063e0941f111e71e36b52fe3ed0361b820486df68d5584795","81a9e8ec95a74c339fb27451a03d884c2f7d73b07ca1c9f58798c5bb0a73352f","5f692bcfe5e3d0c3f997cfd91c89f7c14838f930efd6168c4b266742d5d6306f","c6f5a610c373960679b5e6b3955e4971ef304f5d3ff3174e8b67933c90027041","c64bd96fbc587daa1ade73a9999d2272580da531e5930d93cab9fd58308d5f4b","acc86b74a697ec2b45b11c70f46894e3caa7b94e0df690e711b0b71f817549cf","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":"theme:metrohm/durability/en","quote":"The repeatability of the same sample test is excellent.","rating":5,"review_date":"2024-12-09","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.