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.

“Gut für Menschen, die ihre Steuer einfach und schnell machen wollen”

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 3177778280

Proof data

Record hash (SHA-256)

63eeb7d0aa463041732eac55f69d4b8ffcdfba50bd07f89a8bab149422c27e09

Signature (Ed25519, base64)

2aVydElVEx6NGKky4qkHruRiJ32N180WiJwfagT1yLLH9URcdww7IansbSGxPCWElOwZDzmpiYn0pzHEeAYcAg==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["63ebb6ea02996cc5eca98b94014fe45b825f91fed223aa2a55557be3a6c02882","c8aecd9a69f1b7b668c3827a213eab3b9b7cdb63c19147320be6eb9a2ea4e0bd","10aaaef233b2faa578b95c0be302f15862a08a4de62a02be1bc604464d59f3a3","3e1bd6d55de7c87b58eb89c6072d240caac384c5e186710619eea657343047cd","c83a6eff164aab1046c712fc4be0362cdfa1b8e2a14dc4544d6d4154bb4a2334","524c21a7e751a7afafd51dc5fee02079120f39133f7412bdffb5a58d79fbc74f","cf680f68ceb7b90b5c914f5fe68d012ecb0b9fdd488f42e34256e80edfb2c86b","1c88f6b8ac12eab25a7997d30f3e98ef4ef13960f7682c3ca8f6f7cfcac5e520","b521ddf730ef11d366969aa223a21b67e8c0c29eff1774f3fde84a3faaadf001","973420a28cc719c4bee44166538ea268b457c544f32033de591e7a2ab223679c","5cb0e7ee5b3e1859d68d1ec83cec41f6a5214cdc3bdf1fa6a5cf3447a085a0d4","98385ce011c3a83273719fd1d1b63457c709d42038183049aac393c084de4b07","cce5dd64a2ee4e7e0efff191fbfc9c0d6e8d177df971a1ab32c2db3f02c436f7","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…

Expected log hash

6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"de","page":"subtheme:zasta/quality/bedienbarkeit/de","quote":"Gut für Menschen, die ihre Steuer einfach und schnell machen wollen","rating":5,"review_date":"2026-05-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (9bf5e8bc71b8…), 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.