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 service was well organised, helpful, and reassuring.”

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 3198797320

Proof data

Record hash (SHA-256)

1e8481e8d0869737eabacd8756e0715f0b2650f7b6fabace13169cc25b995785

Signature (Ed25519, base64)

cmkWmByzAlYb8MGuN3otudSmggztlBKHZZmGpmfxOj1kQ4VyfueyR/MaejaivA0Wu/UjR2PKZGD6N56jDETQBQ==

Merkle root

199738dc68b66dcf66f6b0cc77e2cba74c3bfda88989684620837b4c4e64818e

Merkle path

["1e7ca911b217bc774c14e40c683c2ecad7227eb491ac812d1da25d963d266173","ecd630f47e74b5b35281e9ca9b3c65e30b4ecf4b00627d23c6384fa6fd17f3d8","ed4b9cd613b9258579268b17858f8d858036535c002efbbd1c879e6a83e8f7dc","c7cfdc90227a632db72213178e07876600cff108386f9843398569268372c697","70e24a7eb4a439eb39e8d56bbfb1a93e65b40bcdc9b865c4d4679377b7b094fe","a366e5d88e64316c7f8cb53c279a79d2249836644ff25e5336a8d1e03f646c42","ed38d047920f0b1ecdf68fc8553a145d64aa71f7151cd4809b4baebdb8a392d7","902cff088e88a5bd43e48e6a36b3feeaee015e672331dba7737e54ba04ba1d44","badadb282da4933c77895ac97e67aafafd86250e38e6ba32ba14df9c7d1bf4e3","1b71f6f217fe1129478608107159e8d15bf6eedef4573ff44358ddee524e2b8d","237d92539dadc5c229398abd4613f475072d6788bd28bacee8b5bc01f400fb10","86433dc4e5776691731438e65de2d710dae3d65c747d632e0e4f67a92455b646","89c2d1ad10f8da8a1ced326bfbd1f55882866fd705571bc337258b3314dad42f","ddc8a66e59fc8f0934334cf08e419f621290129e658cbc58d8ec27bafd90b0af"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3198797320 · entry 108e9186e8c5677a14ba…

Expected log hash

46227e67415cdf5b62c43420eb8b7a80b35acaa912410c2711787f678b77c9c9 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":"v1791687727006","kind":"published-quote","locale":"en","page":"brand:sumup","quote":"The service was well organised, helpful, and reassuring.","rating":4,"review_date":"2026-10-06","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6ac5448afedf9faa98ba6a43","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 (199738dc68b6…), 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.