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 Wettervorhersage.”

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 2513934798

Proof data

Record hash (SHA-256)

082dc8d16518fa1db79334f35c3d99d28671f46fb3a2090c92dda1bc5012ee3a

Signature (Ed25519, base64)

xwQ737aFhKHeQvuW0YH0PtPCaLonmPEwbvOysNmC/6e2t5YWenysoaUi6lWveinmH5veATosls9qR2fuagZMCg==

Merkle root

0148d24ff6e9c2ab4d5b200cf436fcaf811faf144951e67c277e5df63df916ac

Merkle path

["082869e341c63ec19cb06fbeed166e28227489846cecdfd0c387f79214d8d267","2827978f77b6008a1d52b45939b5dd75c9433d29b13e0537c6746b6ce69eda18","764c1dbb05242d8053b70b0f3605e81e4c01e22049c1ce4c62b133798f8f63bc","67aa5671370720000d5a02ed4d391204acae17a992e056ea6a32be0dad63db67","9853a9068a4be0cbbe25fd191284d44a00d7a0c9addfce0770e57b095e21eac9","1333ab18382ddce36fe62edeb52d50a94e0b7177d385e2eb068c9b80dbfdb082","e8160a3174d5488c89651f907ec53f13d525d7458e02743595d5710ff2f1c754","5fe11a013d6d128cd867d6234d0323dfcadf9173c626551cfce0ab5217382a31","a1252995d72b4cedaafee91076bb355b34ec6e8bcc2f683c6ed3d1dc4c5bdce4","76d8cbbb15a4aff5955372402a49edd7c48a1454005e691e882750c0e0ae38df","6dc7fd456ed8124d17bd8afe8e572b091925a5840161148448d98d8131b88582","050026360cc30428b0f9f7d3fe48810eb38e0be82fe3bdc5ddd1aeca489736ad","6e682ef2f1977653a59b0ad4ee880774d1e4115b6b52f6386378633c9c3c0395","94d634e519e6d7de4794c0ce09ca16c6cca04c4fb77fe27354f6655f0f9db8fb","eefb32e3ef6dc5b176b5121ed7a7991ded7d89d0f08c50d4493143d001bfb6b2"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2513934798 · entry 108e9186e8c5677abbfa…

Expected log hash

4398d73a28baccf419c99b11cbeb8ef2e4242701bb0cc17960e1b5f329faf480 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":"v1787122088277","kind":"published-quote","locale":"de","page":"theme:meteomatics/quality/de","quote":"Sehr gute Wettervorhersage.","rating":5,"review_date":"2026-08-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.meteomatics.app","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 (0148d24ff6e9…), 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.