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.

“This app provides very accurate weather predictions.”

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 2514629481

Proof data

Record hash (SHA-256)

0c4ef14af62231ada31319f71597fb68d8e2dd99f5809eacb749c5697550ded7

Signature (Ed25519, base64)

rb1KzDCvCWMBxpKPwQ6rKRSWgjjLBBNzM92pn549FhrG/5Kqplg4aiZwhSfonJIHkF2ctaLqroe4RUV1cu+xAQ==

Merkle root

3aa12e5b2bb49befac906908c9a841e9a421f12d0bee8acab9c1f906487adff2

Merkle path

["0c4c1258d38c1f4344625e7de4c73b825108983827f3af40c5258c758921c12d","6c34fc2f3ba7327c6a0b195dd414e9cf4330b34ceb23c8fe83270ebd0714ec02","0c4007586c8a9e84ebb725122fb14bc89f336020d06136b587fe568ead5448ef","829fcfa3254a3b16f009a7aeebf875b91c6a025e9d26288463981ee8f861ed6f","0e3735f6b0e342b48b1a538dd8e86185f24b60f6f937bb2ddb0d639f6e0eec52","b118a40ce8945a924f27bbbf8c5e84d60ae8ec2e6c56004bf9fcda1ef5525e09","54fa2bb68e742dec9adecae7708ca9b23891638b67e1e188def300028748fe96","9c175686274dfc0db388b0acf8d8ddd9d8689319eb0c0f6c768b83dc1511b776","14c6027926c993ed373743edbd0b53b3f02797768dd00808792d51d34b943fae","9bd9fca7507d63fdf7ff766e74b1ba9209da0420c239706529b5083b35cbc652","ca2d4656959edf3a3f4dc71f48557c152b90b20ff9c2d8b06d58a6a58366ffd8","d30cb7a6ae21a107a9b24b39941ad5ee14fe94be6a418a1dfc66386f4621695e","499751eafaebbd34bd3075e397b2751a5b4f4ce58d0c2b3e5d8399f6706fd4dd","c3a6c334f1acc8c0b843c5d43c85ce54d647d519ab035a8287aee565097a2ae6","6099970369039e9ea9943621e6c4ddbe6cf64be652afb6debc70debb01455286"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514629481 · entry 108e9186e8c5677a8c32…

Expected log hash

d923130994e40329302180560c0ed5b43e4400136d037befc932b83910626f34 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":"v1787131980797","kind":"published-quote","locale":"en","page":"subtheme:meteomatics/quality/forecast-accuracy/en","quote":"This app provides very accurate weather predictions.","rating":5,"review_date":"2026-07-26","source":"Apple App Store","source_url":"https://apps.apple.com/be/app/id6449551642?see-all=reviews","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (3aa12e5b2bb4…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.