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.

“Der Metrohm OMNIS Titrator ist einfach zu bedienen”

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 2621946731

Proof data

Record hash (SHA-256)

e3f751519b1fcb9a68ccf65ebd705025b9dcb0654424f34b969c37626562f24d

Signature (Ed25519, base64)

G4u1/MGZ8G7GRpUlIbHcZLXEki1RztznK0i3XpKwQUZPHrQyooaRoqkxhnO1UVuazXz1MF+j9BEBTTtlze3NBw==

Merkle root

3dfdf7381c8d7ad52c2e382f4e16b6f321af764e7eaa340297113fa50b9a0792

Merkle path

["e3f78569871bad96a4c44517c01c409c278a5d53319dafda216b333dc8acbc88","7aeb48739107d2a0c8af177eb2697849afced65ae536dd35084a32d79a0012dc","8461390f38eeacb0ef976c7b2bb2766aac8bb33d7bf7c13d5c614041bccf4c04","71c1160edb4c572f67fc130401c8f035915969dcf30df4124c4cc2f1642680fb","0c35de8299a583c0fc0d221ef0906de7dea03dce61a95d5eed74f9bf955c3030","4aba427275ee90ad019ae9a48fe8cac4c69d5a8f8407e4e9ff0b36aedf62c3c7","853f2b399a3302b4f6cc09a9a7e7154ea49a187e8b507c72678177b59e453236","307046b5297b19cf9a8568eb3ecee996f5a1883a0e12c2150ae24e4ec8aec0b0","4dc68458470c06f2e4399d790f8e282fe59880eadfa895fefc4f43b28283f496","e4cf8f758f01101031ac85d1fc88ca5040bb5e2d2aa7abeb3a0bb09b3d4d11db","70e1882a5838e1183d16ebe02c936514b005d694b8ba229570a2e337d1aea298","b8a4c33142c5ca8cf32fed12f73a84dac2b8094486f25a467e105e5e122c9805","be27a0191ca6ab7325f4c0624678ade47e6f5fbf47594f3e9c25afc28b5ae715","71f08c6b7e682817b9a4ad4f77f63e7c1d7b2090849a76f88e1644ea4a33fd62"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621946731 · entry 108e9186e8c5677a0a42…

Expected log hash

ea07e2ac95e2432412286c8e9f169e876b2f38f9762d26c0a0ce3cc128edcf3c 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":"v1787893493942","kind":"published-quote","locale":"de","page":"brand:metrohm","quote":"Der Metrohm OMNIS Titrator ist einfach zu bedienen","rating":5,"review_date":"2024-12-05","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 (3dfdf7381c8d…), 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.