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.

“Can't process the refund even though I have the receipt.”

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 3163352270

Proof data

Record hash (SHA-256)

ab437f018d7a398d46d1231e2f0e3a426dd1f12969ada5ee42ff3018a3ea5dd6

Signature (Ed25519, base64)

lGWwhgBI3jdQccAwhVWE/g7sH6vX/rpj9/IyrivOB0uTXnhoy5+HsnZYUpAzfUmBZNNeFVoblsiAWbHb+FndCg==

Merkle root

784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8

Merkle path

["ab450d45b74f7080eb883ef3925740b1dd0b5a0ea5f337a473f00c46fe4908c6","cfe6d167970babf74eaafaeb13f0c19e3782c76f1f763ee48e46ffcce9ffd444","5742f0ecf6cecb460a30a7beb11bfcba36cd9f23652460a2aeeb8c381a5b1e48","79821a9ceba7497977d5536a13056abe87d4d611741ede70af08f611590054a4","48d2cfe6c4fe9fed58f82c794149153ec1a35626ddd311ada604e59b513390b5","9f73a61e915f2f69eade4f58c15ace2f5432477b785df8bbbbbb9502d9de9ea9","e184faa6efd6e9760dfe663514bb42841467617febbc0296434840a41a0a5ac9","f958944d7911f762a55fe8d2373187dc12c039eca4a3598dfd079d7f66f2f6b2","ea6f9a76c4511f369f32bbd81eaa084e62f736a5919188c57c426deeaa0f8a13","c089d62aae2e1bb67f886f2acba77cd601b6a7c393d7506706d9a37a26e55da3","7c5cc44bf3dadfc3ea825fa7b6318a5a806b0530e25ed30824b8eb94da7bfef2","0201c983b09fe2a6d85a2aeed3685fb6092ba44209b47a3544cf19cc36add4be","961ed00308b1bffaa9d4958ba201b674cf19653b91d35ecfae6b978cea02e075","c0acf811319c30afcbe8b77293e97c6cc46544f39bfd9b01931c88a06aefa19f","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…

Expected log hash

a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Can't process the refund even though I have the receipt.","rating":1,"review_date":"2026-10-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (784ff8fc3c42…), 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.