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 2948162176

Proof data

Record hash (SHA-256)

4717cbdd571f1c8b463c556fe0d9499291ed8b7394c5e4b05a46c80bbb6f16a7

Signature (Ed25519, base64)

ZwhqiEMhhnf5Z18R4bXq6LNlUw1Tt2Zh0KH58MpjS25Z1Q6tNcJb+lvfsAyjK49ZdP4HrJW+OOAIGhICEQPCDg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["47176e79969dfe7d3da203d3ce92bdc7f0d2b653989012df915ef5563614b9dd","b2c86815e6c83495f01ec4aaacdf80cba4fd6fe587d7504eb6e9e32d880f97c8","ce5f7c64e76354877199980287ad1810a73a6bbcd13b3f9bf472515e77df364e","f7ad82342e8ea008777e0228a46d3e3dcde7be56a8617f4cc4f52195da39a5e4","beb6f23aedc1274383b8545820a2d28363e9c7668b6433e3d3f898be7d63d332","54751ed2a62240a14f8a6e9e8b1ed9a00ab1aa3f7d751774c07e689aed901395","578a036765d1f8dd1d8c0e2fa6738beef27eb6508729ff4461f1aef269783433","d2fe421df1f4b337a03a510238db97b90e3ddf060bbbe09ed377d18074fbe2ba","7cc62eedb10779418b201cd1d474cd719788be65fe1f1906a462fffe6f5c66eb","45b655849b61f044d3d54e07e380f8eef474d50cdd3409a59d9d091f992a75c7","90744b84a252d7e51d67bfefdb583359ddb1de8204f826c2012e228fb935f6b4","761d3c69791efc32a160ff138bddbddc7bae13863915424c916d5f32aac8cb96","63caf53777d803af92ac6db2d445588376da791f63be3d8e14916e9cc99957cd","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","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 (539721061967…), 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.