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.

“a 40 CHF late fee is disproportionately high”

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 2543547848

Proof data

Record hash (SHA-256)

691ca28ad4d0ae2f62dc5b12708dcffb98ee4388b89bb66672a3de7a39e9fa5a

Signature (Ed25519, base64)

vKkGjExyxkTNS/ZnfAqApUg9smZwBlM3UFi02/1mfjE3FBfOXaFf9eA3Oe5A4qP97u8uEyx5wKrhgMm49bBsAg==

Merkle root

aacc11945f125ee3fcdef86ba030016c440bcc608f4e51f0ffffdb4cdc5e9321

Merkle path

["691bffed895fa504a9b2fce197435ea180427fe4ad6671787c73cad73a8d942c","8d23bd7afef507a7b56643944c3a86b4af3561efce2826752a535ffd9ed4ced9","db51ac5ea3675c60ac471baa881577c550afaefbb8051c82ffb347fc7e6527bc","59b4d5cbfffcea571973983f5f38c8774b601e66d85029f39738e590a96560cc","759cf961ad89d248839169ec443e9983da4983928198b4d2628aeac6b8428762","a7c37b3d470e806b1aa30b2df84a218f335021ed094cbf0f3662ff033ad3c5e6","0ac40f1c5c1825f5c87d8afe926c37e1347ef09aca092f4c3b8312e209a22404","05617b6819841b5fbc3f4ca350ed47c5ac1fb3cf3f6373113ba8b650ccf381b3","57fbded597d75eeafe47d53bfa5e235438fa8c516ab257c60836305ae6ffa0f8","a75f874cbba5e4dd3bcbbee62bb2833fb4489fdea3a5a5367837748f907fa7d9","02a5ea4f3197332385fe41072b523becd1651e68a5ab126f089fa99ed22d0ad9","10417bf8400d993dc5bc51fcb3c27f6a0c34b723944b9a3d537122bb9e0d2970","a67383a47457a5cf1d5e37868e4ed4249ae6b4ada373e7ec00eea3b30391affe","b1c6c1169310bc9b3706487a8b54e13d2c5256c24253b48b4df6440bd230af21","2309962142b16600f7fc4d57273f3042f382acb91be89aac7f00112f61b58f1d"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543547848 · entry 108e9186e8c5677a921a…

Expected log hash

bb93f13ee7a4a636e28586b842e19662b148eb18166a89b3ae7d189bb8e81689 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":"v1787286345433","kind":"published-quote","locale":"en","page":"theme:sunrise/price/en","quote":"a 40 CHF late fee is disproportionately high","rating":1,"review_date":"2026-07-01","source":"Apple App Store","source_url":"https://apps.apple.com/ch/app/id466738063?see-all=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 (aacc11945f12…), 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.