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.

“Die Steuererklärung lässt sich Schritt für Schritt ausfüllen und spart viel Zeit.”
Apple App Store · 5/5 · 2026-01-18

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 3140838741

Proof data

Record hash (SHA-256): ebdeb3ba9a153cda39f7c418536593b34d2306bf752356fd9e9a6ec407fc6077
Signature (Ed25519, base64): 2LdV+X6nbMP5n+vf0hchNRMGC5+QPY1WMwgndKkjMw+GrHy2YjVrJcLkRSe9DypPxXADwzlWKkqmV21oXR5uDw==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["ebde558fde4b50c1c9aa2e9fffb086194da0fec6ff974ce05696fbd74e63e26e","8d915f306d13ba6325a3be185125350d62126ebd8cac98064c77d3b363002e31","7ee4b2d0e781e6edc4ac80ddbbc45b2645fa316e475ca970706208e0a313e6fd","23234415ff54012c4b5038692ce3e8e6f1885b193e886ea1f89408c585bdfb3c","2d15c7477cba22007f39fd242728383766bc04f5de03229aabdf68116df89f5a","b69df1040f62ce23c0900e859531514d6af98b793ecd9e8c952a83bfff86fd87","1c7d409d4cee13a46951c0105030da39e23b55c4c4d480895eb5642693fdcfc2","e74d1b473c94342ea50628d2e907e1f7f6a09a712e7705e760c2945d1d1e961a","badd33c242d478da8f93ca4c0f49e69bace47346ef074bbb7ee8234709b91888","f1e0c091ff191d1729ba36070bd8b1480b8488acb6b62ca50722bcc10b965650","464a5c9763b083cdb878760bbccf8ce7b3c77eea6088139e0496bfe1ebf8fa85","f406154aae2c44f1794f6b50643080ce6a776c688e18283a272eb008f69d5ee5","662e3ca042b912b1592c5eed9922bd681d278213ed7e0626715348f767464eb2"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"de","page":"brand:lohnsteuer-kompakt","quote":"Die Steuererklärung lässt sich Schritt für Schritt ausfüllen und spart viel Zeit.","rating":5,"review_date":"2026-01-18","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1586330607?see-all=reviews","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (68ee5f8618d9…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.