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.

“adding numerical values, e.g., wind speed, to the map view would be great”

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 2579608108

Proof data

Record hash (SHA-256)

1328fa0e443392a8f2d7339ecc746aa60e630b4fc85e2e8235f900c7490648d5

Signature (Ed25519, base64)

j/bVaK3cbGAXqji0npkquZ+4XG3ooEHnbRec31ylAv51vWvsNqk/V0Lebd0gp/QY19sjvwkqtfd3Ug6a9JCFAw==

Merkle root

73035d63a23ff36f71b3b8034de0222181f7f0c7af5aea1690610c83e74c7d15

Merkle path

["13270c9e221966317a1ed23b9028ca07a13fe08de0ee68ad97b628fc9d660ce0","3edf654336778c21391bcd7278216f3b34739d8f452d7738dd47bd0ce30c1872","6a46ade05561ed58aca816b54a9b62486a1176144206c45884e2cd69bec20588","7c6ddf24294c427faab94b0cbb3938ec74229397f681566e7ab045881b708f94","e0487b41daf22c45687bcd251851409924d98bf744a2e8c4ceb0eadd94a1f4a6","ac40c7d8fee47f0e9772b4f6fc00c3a1cfa7dea31fa777c0de4847ec7137ee1e","de22839d4318b8c87bd3ce464a95cff59dfc270ef4d3e5a466da62b95cd298a1","cd4d3b362522b1e04cb388a8b8410945ddfdc667b6e1c850dc4c294f5c1de79f","22612936faf389b25007c423effb21df1a73c8b0457368001bd81c77ec52ad35","e3584cade64d64271e1fcaeeb47836cdbe99c31f6e515870f0b8427330f33e6d","c80c33b01ad95e0a664a19eb547010a82387bd5a9df9337a3866b93eeeea3d5c","80e6b08429bdf8b1ea175f5e73973e6efc6b76bf6fe386623f81777d72899525","79f42a6faca7a25c904d908743f96835c8ea8dd4456f160fa4cadb988d234bba","34ec044b557bf42eeaf01343e2a0db0a8e40ba2304dd05f1507afdbc0f1ed40b","12edd9887d614b1b24bd84a0244281e77071c1e73791fd6b4a3ddf494952054a"]

Anchored

2026-08-24

Public log entry

search.sigstore.dev, log index 2579608108 · entry 108e9186e8c5677a67e4…

Expected log hash

daecf929d2558ff2044a636afcccfdcef28fb6ada4e0c06f09682a010a04fa65 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":"v1787541876852","kind":"published-quote","locale":"en","page":"subtheme:meteomatics/ordering/data-accuracy-predictions/en","quote":"adding numerical values, e.g., wind speed, to the map view would be great","rating":5,"review_date":"2026-07-07","source":"Apple App Store","source_url":"https://apps.apple.com/de/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 (73035d63a23f…), 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.