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.

“Sehr gute Wetteranwendung”
Google Play · 5/5 · 2026-06-30

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 2684163355

Proof data

Record hash (SHA-256): 0b6c8939aebffe08dc2c01735cc3926273a41bdea3ebc582ea18bd562716a67f
Signature (Ed25519, base64): XihPTEUisb0McBpadpHdmv2UrfRDRMqgimaw8pZAK/F9iUVuKcdRjr5XWuKaDXJlqSlSYDHBvAZVJtRKrOVQCA==
Merkle root: 404e3c13e38cb64105d39456b35227bf21885d8da4853edbdc28c1291169b69f
Merkle path: ["0b6408492382cee8d211ec9ddd3d44a1b029883786a9a19565cbe498d24700ea","3d73ed504f36185a4bc264b8babc754e5cd81a78586160e2dd24c5941d91b17e","38986b3459d23b97d8fa3c22c96e088effe094054dd7f07cf5ab7fe1030fcd37","067a0ed43ea23033b73db3829d68d0d9d2c5e92a49a00b38a68e7ebfbd30046c","2ba09275a480c6c708f7d215ad60c4a4430eb0c8b7e1144b055f417316781b4d","5528b28541794e408c1e16154c69cdc4c36e19c7fa8e8a8a856a8f5fb685f5f5","b4824b3fc287658aaa6e5eadf96e52b3cf5c43d5489cf36c994884b472a8fc2f","f02f7d6fcd58ae412f981ff117bcc8ccd6dedf269b9a68e05a14f4c8f8cba875","ff618ca3f3d1a7b33df67804dccf3e40a242fdf138856a0d0404668f7dca54e9","761f54f9ecb7be0944c3916d23b154e9d6d14d207f62eb9220fa0a96c3ded0ad","3ccc20e9593eca6775f2c8a1da14b38dc53b4ea30b9b5b7e75b398b60402074d","5c0eadcd95032a9154ecd9aff9cf286ce38d392bb7e5263e65d22b770c6624a4","15d2e7111dd71c6ca8e6466c194f5ce08d202efe38071f7b3fe773e133385ebd","bde050f080e8537023a46ea459bb1518e1d885f47b2ddaedca03653a64f35bdd","63269a191012537d921c10ea30214f6deffddee0c8302c1d6e8c9845e6049806"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684163355 · entry 108e9186e8c5677a55e5…
Expected log hash: 4066e61b2031c5768194188ceb0300adcf0b5443c63f9d6a4476a0f6ecc5beac 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":"v1788335271191","kind":"published-quote","locale":"de","page":"product:meteomatics/weather-api/de","quote":"Sehr gute Wetteranwendung","rating":5,"review_date":"2026-06-30","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 (404e3c13e38c…), 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.