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.

“weil man sie nicht erst runterladen kann und dann die Lizenz eingeben kann”
Google Play · 4/5 · 2025-12-01

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 3124493015

Proof data

Record hash (SHA-256): 254bc7452fc05624e21a9bd76aab67123bfc6ef9012272d02df828efa46a870f
Signature (Ed25519, base64): Lblow9iTCmvzWxhKoB0V7GkQbhAwhXqCW1tYZPTAAFpsAMBYNKcUou+5J29RHitV3+wEmmKNn3ViVt7U3yi2DA==
Merkle root: c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22
Merkle path: ["254a4c25d0cf58367e256d70a10e1d7997dccae3c5edeb1471ea8380e381e9f4","1ffff77bec6493986834c7428346ebf7bce618faeda2a33c30b9ad7782afae9a","92c855a38018141a9179eb37fb220c426d61e09b5151cf2470e2198c3acaf585","66626d9cfba0f31cc7dc504d81375282d35e8c95c5cf3fefc3df339f3e9194ba","2170f744c0cae4d1486d0b6ad7137df8126383e60a5de235a50a07fb5d6934c6","3bdbfd3d98b5d57b0bd847587148b47f1a546f58c5964bf912ba6daac8dbc730","2967d9a083a406bf8aa4a8cc3edeb25903e0e65b56991cd9b0c0bfb083eb2c50","42b4288c30f6d252a41aad7fef8f860f307cda4f3f063aaa4cc50290657005d5","7ad7aa04d7cee1a012a9f767f76b39a310cdcf08492193f5075ed2a0f075dd81","fa517188b0198af3cab4e2b187c429aee918fc8c3953b9d516b763600094b8fa","21a222cff0be563e8ac212d3bdd166f0ebb16410737d2e231c173e9cd03fa9e8","a8cfe7f15d1cd89003b8fde2e6212a989155550fe06bf9628f8df7e8a0744bdf","818f0135095488afaa32256706f222f09138af7de4410ea79d618f621eaf5cb2","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…
Expected log hash: 0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"de","page":"brand:threema","quote":"weil man sie nicht erst runterladen kann und dann die Lizenz eingeben kann","rating":4,"review_date":"2025-12-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (c481d6241284…), 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.