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.

“alles wurde deutlich erklärt”
Google Play · 5/5 · 2026-08-21

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): a3dfc0d302cb84c850f53743ac5b88d4bdd86177b0158285a429b0c5d95b9364
Signature (Ed25519, base64): a77KWMDkYNV09G5G553zZD24ZW4Xigp7nFJHFidisRBA0f2zNUob5GOczB3rZRcCWzU3xGQI/kao9oWW4hQoDA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["a3de5e96029fff533ae104bbd8a7ebe808cef39f5208c0895f80d37d89b54846","1dbf7c19571360598cbb01a0249c191fcbf344ac9c70bb2208c8913c0155b2ec","95c3d06d11e61bcccf9d61e7404ac8229d326445786e7057bacd7c6de5b93221","184874b8b3750035b4a58af0979df09a275c74b4dce1251c89df7a0c51116707","a24cc5b8bf38ac89750144a03754db40ce454ae7ba20855d60fbff04a4531aec","188de1863343f69930e3ab6c91d6cff14d20012bb52ea0743112207048a1a36c","307f0172385ea6d52651e4801499a2ab23890d88da81557e0c5ade4587886cb2","321ef3a74111f57fe705a8ea57a986f743cc51c076a4dd4ee57809eac7919854","7f0257b14bf00620313298543d6ab093af7246d7d1b8b1aeed8dc6ad3ad0e657","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/communication/de","quote":"alles wurde deutlich erklärt","rating":5,"review_date":"2026-08-21","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.