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.

“Metrohm products are a pleasure to use and a reliable 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 2621931690

Proof data

Record hash (SHA-256)

ea2628d2cbd3afc11790dafdf567d5434de3758ff7183040c63edb5986911bb0

Signature (Ed25519, base64)

SMPLDZ0ZgiVUc1V2Rklp7WJmALweZ8wez4F/k79nA6B0Yge3oC8ugga0wvJvHpngQuKlAhsNiMiWaiSQqWkWAw==

Merkle root

1ee209bed1b4afeeee81ef09190ce0d3b99a421ee0d9b4b532771d9d3d94cb97

Merkle path

["ea24d2837326e7de9cabfc6022fca95f0c43eede269b88f416b12b0654d2908d","8491ffb2f891501c2660c8649c54c6ff02f83be74f19340dbe126b33a67051ba","f951660526dc3430165ec51df6879681a7adc69ef9c15c750389c3d3fe825022","a4723ab62a20283a4e50f05869bf6a6cfd63efe2e1b8b1e51dfeef0892059e4c","ec4e5ae981e42b5f63545a5c3bb5f18f7b34634f82a73115c63af63a3ce40ec1","97a003b7ee94378017c8d3abb845a7457e87b30a58cfe67fda6d44113e51751e","23f9bb8c408f0a92071e0807d4b2c60cd4f2874cbb76f3993b19b786709687aa","6ef8cb6ed058392ce9edb2b23401c44637f48d0c0dc00023a6d57f7c7e172fca","0672c6b3d2e556e21b7600dda8b849a8f906c97e40483971642e894daec3d2e0","599fc3725dc166d02850fe092b923bac5514a6fd47a156b01fe92796cef764bc","13bc978c476ab7a5acd2c8809fa718094eb9643b1b1089850b200d314c15b908","b5978d3b36642a74058021b62ff8bd31fc459a27253e8e7e7555ec30b4af5d8c","42cb666356b783afa8f0c0984c4e26213377b06bc32327618c7015cc204d7621","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":"subtheme:metrohm/quality/ease-of-use/en","quote":"Metrohm products are a pleasure to use and a reliable purchase.","rating":5,"review_date":"2025-12-10","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 (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.