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 product is precise, with regular maintenance is problem-free.”

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)

e2594e1d9852f50ef4ff483d0feedfa40dc945ed8fbb1bc024591bc703cf9331

Signature (Ed25519, base64)

/emfPN/jE3xxBqaXK67tdLkAnTn1+uypr3TA0TQcDg/KLsWby38UaDIapOOcBYhoSOPVZloyuO3QV7UjVrnvCw==

Merkle root

7b426d9a8e4778c60509753003c7b551184ce3f76e1db9b678c604656c147d81

Merkle path

["e2595fe4de4fd37a0b9db487dd37b5de126305dc399d509693c78f21ae59a21c","528277c827ad2a4ff04b672f7976e7b202e4cc6399a138919a7717a11287652a","d2c1b1301b9dc0e3bc4ca4f455e4c279731478a12192964b0a6533c9cc674b15","1aaa1b727c8429754e9e291ac02cf0b546cf7c0c00fb81e75ea5a9998a07d025","ac1c58f23ebed162894472b49d44f9a4dbbade3dd879912f19cd8456abb365af","41d5f9ae2ac25f3fcb9dfd22867cfcad2a871ab01820bddb723cb09a983e01bd","08cf344d4f755fa758edbc2de90346e42d306097d220dc2cc969a2f94618829b","a9067bdeba81002e37823736a41dada138ca2a1a8d1fdfb8ffecdc382161b592","af3009eebfee385b8ca1a62f537ce89863a2812ce08ef3b4dceff53a58fe3c40","233997c37c63667cd99da1337183ec345d3e9a99c6594f352dbdd884f7e2c842","34edcfc2b213186c51d92a7f710d02e330b380e1a5a73398d6cd4dee41a44125","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":"de","page":"theme:metrohm/durability/de","quote":"The product is precise, with regular maintenance is problem-free.","rating":5,"review_date":"2024-12-04","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.