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.

“Very good service and very nice customer service”

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 3124493015

Proof data

Record hash (SHA-256)

146b75c59472f00c5ff3f0742d940e3f1d1f2894d27155e22aec297f615f4c99

Signature (Ed25519, base64)

210UjEwKUHHWBAbgGsXIEqbMprTNEAJRmuIcA1H//BfIybY2WGugMvgoAy4JOCOLUcOv6on9i8ImP2TXEpZpBA==

Merkle root

c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22

Merkle path

["146b806fd7c99f86b51f955d32f8710a848a4e7e477413aca4dc5adaadea0a10","4a51681db768252a407496757bd655b93ff196a8bfa62e4c2bb03c4f16d81e84","e14fb1375548fbbc65fab83a279bb176970ea2cb5452424d2d5f7572a3cb6ab9","1b990880e03301ee6d3283db944b4bb6e05cc7839f0cb908c589186bf7c8ff50","03f1b54b31941426279cac94ec3b3bcda1a9e84afe727569fa62f2677c5b492a","9902d7d576cc6cb45aad0916cea4228068ddba1910934a59f6822bda14625cfc","9bc4cf8aa73107bb241aae94e5cd06433b690c7609a395d0607d5ee2ce58f2d3","f44faf23081ef236f2a34b41c5f24d3cd945e0947fc5fb6b93752b6e6dcb6b85","79a80921d293edbce8661906c51beb1322f6cef85cb5b44f9a0f5cd6229305bb","715263fece8aa66aa9a0f18a1b7dd4e56e3f00f43f7013048a811ec20bfe1ea0","64dee079392160926d13bda82f8c0e7e42742adf214a1401f48cd8349e353ae5","a8cfe7f15d1cd89003b8fde2e6212a989155550fe06bf9628f8df7e8a0744bdf","818f0135095488afaa32256706f222f09138af7de4410ea79d618f621eaf5cb2","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…

Expected log hash

0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"de","page":"brand:sumup","quote":"Very good service and very nice customer service","rating":5,"review_date":"2026-10-07","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ac572250a4e950ad6905694","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 (c481d6241284…), 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.