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.

“and the instrument maintenance is simple.”

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 2621780523

Proof data

Record hash (SHA-256)

e8ae037cbb797696bde0b16a6235db3e9a46a11f8497dd02ae41e2c4811bef55

Signature (Ed25519, base64)

gvLWFCI8bOQI0yfuNnCoegpPJ6+95Nm92p7VPm5YqncscRRrcO6hm9LfkqPA48+ZqyBBuz3JxYuYByyQBOePBg==

Merkle root

7b426d9a8e4778c60509753003c7b551184ce3f76e1db9b678c604656c147d81

Merkle path

["e8b0cde99221ef0bd14e3e46bf620e7fc3dda1a5cb541beb49bdb963028209d5","b4c16e191701fa070350b4bd995ccf412496e9c51b43a98dfd46f0a530dc3b90","66ab7acbd4a70eb2fc174ecb471c6175789745bd666dd08a9f95cc2fce46ce46","f95c4511f40d065ea21cee3790c8885dde0201dc68862d0c289c8580186bc02e","6df0953e1f678da3ca3d8e25aaff62cc0bab1b888815c8d4d9240b30bb696b05","0970fcab2b8eaa32e1f0b5db31704cfc65391bb492068e2d48286c4746c1e5fe","75106cc4952f5693046f40101d1fcdea874c17a7baf5610fd83a7b26ffee55f5","3a4b9fe5f4687926599040741d333dcf8e14c8ae5d62dc0ddbdc166ed48a5a12","392680fb22601bd733ac19f636d86ac531c089f83127cff8b9b004a451942cff","625388472a47e15955ba69e8bf5ca26e057b69486f9f362daa818056abd6d98c","759e304c8074b6d86fd8a9b078530d00b56ead93080808a9b90c1d6c5dd6841d","8f057c4aab4c8197e2b19c70f1027e1e83ee816ff92ae5e30b2fb4adb3a9d7fb","8de93e7111b0620c206de1ed4c3cdb8e0242cf0ce102b04cba74b27a6adc3dd4","5cfd3f01cfc088b9ce004c6cc4dda4490d6ee2e150a101125197cdd0e0e5936f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621780523 · entry 108e9186e8c5677a0666…

Expected log hash

8cedab57a40119bdaca7f2b5c6cf9bb1e2c3e69dc6a6b7339d16a6592c70750e 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":"v1787891923870","kind":"published-quote","locale":"en","page":"theme:metrohm/durability/en","quote":"and the instrument maintenance is simple.","rating":5,"review_date":"2024-12-10","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 (7b426d9a8e47…), 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.