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.

“These are expensive enough to not be considered consumables”

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 2621931690

Proof data

Record hash (SHA-256)

fbed6e5887dd6b88d04de5b8cbc099084dcdf950f71f258e5159f3d8302a30b8

Signature (Ed25519, base64)

J7I5jCOEKQp0SZtXw4Scy1eUmpGYrzvTw+VUm1fFR90QO0RAtVdTd+4RzE834hMnJN1R+KXvtk0t92pDdaR2CA==

Merkle root

1ee209bed1b4afeeee81ef09190ce0d3b99a421ee0d9b4b532771d9d3d94cb97

Merkle path

["fbecd841ebf63c1fbfee25318ca0fb3832c322ec3e160f5dff8ba0db5a3e6665","20f02df0eea406eca97d2c4dadea1f045ac8bf7f0bdf9108fb6a66d8b20d1828","37262a7133986175b95197353e6576b56268dfee68ff5d06baab8145ae7b6587","19e115b7ff5f6dadd8963d9e4399cf44449fd321db7c909801e1a2eb2c4d7c45","fbf3babfa917ebed136f0dbcfdbd20c0d9bb1524165e16043a870fabf8358553","20937a6cf86c4e2071de11cc0d5d183a0f15997f6b7091f075d5f56af69e71de","1e0ec933eab5ee8d79fa3d775a5fe1232fc749adebde3147c7e0836c36961f29","d6a9e1cf08115f51d038c6bee003b817659e8ddb84caf3e8dc3a36a153cd15ea","125474fefeeec77538f9c60b9bffb25d6277842be8406cc10357680af772cbef","ec8c58d581c26aeae03015c5d8e5118ce77b0715e4ab9fea68a177beab62d83d","b6779f2cba0889ad7778bfc5bdc7da93c3cb48509c262e0878acf4197e86c1d9","00c1f93dc7b93d5fd8e6eec6d6904372b9bb5f3163617dc9399763335ffd0941","7b31f8d99c794d48940c99b1c3b5b8106ca056156cb6a2be977db9fc7d95eb55"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621931690 · entry 108e9186e8c5677aeade…

Expected log hash

d994a621bbbd8dc49979b621c8ed37c232baaf4093de999a10f35ab0baca4376 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":"v1787892752320","kind":"published-quote","locale":"en","page":"theme:metrohm/durability/en","quote":"These are expensive enough to not be considered consumables","rating":4,"review_date":"2025-12-02","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 (1ee209bed1b4…), 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.