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 beste Wetter-App!”
Google Play · 5/5 · 2026-02-23

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 3305112589

Proof data

Record hash (SHA-256): 03e37ca268a67248556c2f08d7b073e3578df533c790b6dc53f737e09352ccef
Signature (Ed25519, base64): NvvT7pEhVgn94i+USQdkdUQpeegaDUr2Fsdh3D6HO91vmmLG3yEyQGiZ59H9jeAk5ZqxgCbiP465MPsUO4IuBA==
Merkle root: 55117deb4ca8d37a678ae0a073fbce195c324ce5f9e871ef967256fc521a73a1
Merkle path: ["03e7b71dc02fc84cbd97d7e8763c9901aa8bb3c04d8d2a032361e165dd585ff2","639e668f0a6711c6f4e8f544b1e76204ade01fe579ade849312d79574a4c7344","4b480d48f735e58c583a2b1edf92887a0eaa13a663937d4fef873391fbc15df7","8639b8b3c97ef750adc42635fe625db8a6f475ea74c3e39ec6d6e641b680692d","0fa7d07efb61c2fbbf5ee3713b79d1a7244f6463ced34bf663984fc585302ad8","e90764d841907e244f94af628da5dfc725b6c23879945d1c61ac480bc229965f","5a07749cb5b5b97e4ce5ac1142ad610d581b42d7e17e2b8380d933a7191524a5","d34ed9a15f550aa0f58199659264240efcdfc64dea76abba1dc25f2aa8dfd5a3","385ce2efb228e690306a756bcfc63e7d0fcd2cbed3ffd84df8dbf4d1d798d158","48826a79717dece50393908c97ebca735ca8cd935189c60861605728b7ad4757","535b6abf2fb18dd8b74ad7937f857e29bb5e4346d9f2703c382f726f073ab41e","0748f9297c4c0a3720af131f4ce2567ebed633099d330f968f516c11a8f0d4a1","31d8e181a29f89115c8305b83331f09bbd2794984e0617d17f9e5a5ff069102d"]
Anchored: 2026-10-18
Public log entry: search.sigstore.dev, log index 3305112589 · entry 108e9186e8c5677a5aab…
Expected log hash: c2e7db559e4d5e5fa814daad663a532ab12f6caeac67f681385f7a90ad7f4355 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":"v1792292562366","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"Die beste Wetter-App!","rating":5,"review_date":"2026-02-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.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 (55117deb4ca8…), 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.