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 wohl schlechteste steuer App aller Zeiten”

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 3199295725

Proof data

Record hash (SHA-256)

566a622d03f6e0ccea0492aa24c64c9209c047147203ba1c28009ac9b7c59928

Signature (Ed25519, base64)

d6z+RmKGVXQe1QQ2/aYW3bI7RAZNheHA6IlFmPpD8jnCDyZ1ngk087mxOGrouAnOYwSJRYeomypIDgYE5sn9Dw==

Merkle root

cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e

Merkle path

["5670362470c9d463a7f5f76fb31cc6beb379b924cdfd14a5d3d1cb1291ccf3ff","92113f0b207d2d6a1dc2ab7e205d6120c09e65f6f0f25c04cff5ea5b7bb0fd8e","231b1c9f33301d3621922c25dc67242960becb0491df474529da7428c32f20b3","8b6e7b5ae488c0681330bec63e00c2c5418d92dc410b162a3d76a59f53bae3e0","f2e52c3d7a3e9d8b614e1ec83e54bdbc59e8a59b4a2dcddb93d24f06a335c29d","648f24ef0c9b9c4f4f7a8107e2a6b6aca2f2c08e56728afbd47f74a87cd65b92","6327104acb4ce7b07a9bca88935c2a54393f119bd743af1a25b94e3c8a1ae250","268dc361518c3055934ecfcb8ab663c769e0a8c733222dc95562ccb406f1dfa6","1625c7dbb4c975133fc96f700003dcc456f5a062c86839ffe899ba3d62774f11","3dd5c052099d08f3a69fa4b682303f05be954a602fc8a682c2408ffed7c0c2b2","d22e2947e2437bd17cee6fbebb3fef4564e517fa76b3667d5f7449e2f7cf7733","985e8226a3e0c2f6e4183d2b437a359f1bd9336267c62cdcc26c3031df5f08e9","d5c54f6be615dd1c8e7a065afc12e543325363bfb66a63065a4aa1d52a1dc406","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]

Anchored

2026-10-11

Public log entry

search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…

Expected log hash

59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"de","page":"theme:zasta/quality/de","quote":"Die wohl schlechteste steuer App aller Zeiten","rating":1,"review_date":"2026-07-29","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 (cb5472fa7b7f…), 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.