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.

“hat die App echt sehr viel geholfen”
Google Play · 5/5 · 2026-09-17

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): a2d8610dbe2f0605aa1fa5ac30ab786fc31fabb46d4d91d52f9d40b3be664759
Signature (Ed25519, base64): Vccq0jgjEkJNAJ8DgK7aWpWuR2QU1EJMsd+WbrD+8ITXVJ8siwIkAnqAdOh2OqRlGCLYPscvgeFuRt+4S7gsCQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["a2d926a39851576b2ae62ef3528e700e820bec20fdd2c9de1d6e4e9e1ee47bc6","713b590ee860323079c22da1fb61c1ae954b93688cd5deb5881fa777fd48602f","4d15391897d631aeab18fa4c15ca8eeb74baae308a7c23459c5c309ce8704f1d","973839b30133f1efad8d273913fe0efb01280b1354c138bae076c11d24279196","ff4ef9cebd50ab465f9f504375711c3fb27598952c0eb007f2e4944daa009b1f","8ef84f64b20626eb461d14046ae1906bf08617e695a2a29fac8647dc907f688f","abf56f78efbb3bd0e1486ff311d629f6533d6705b02594d0e39c5881f51e1a16","6be2e5d5cfbaa98586dce9be580de77e48cbb8e7dd50904a7d6ce9fd99787c4b","d5617e08e9b7006462efc52e0bc43814232448b80c99194b1f59fb9c38316f81","8740b35bd9a87281389700893b7d9951f9f3e1d8c4c9a97bfb18ea68f826e949","fe409fdc26ebbdc6da646c9996e832d72d0b70fb9d665e6c9212eb8bc76ab819","3a38d47949efc602ff6b616965b31e8678e49342630177cf4660e5e840948405","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
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":"theme:zasta/quality/de","quote":"hat die App echt sehr viel geholfen","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.