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.

“Eine tolle Wetter-App, schlank und ohne Werbung.”
Google Play · 4/5 · 2026-04-13

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 2514446349

Proof data

Record hash (SHA-256): 12b62a488b62f20ab50503840be58ab67d780c9632315f97b774c42818e0693a
Signature (Ed25519, base64): MWIkBK/ROkcKwvd4wHbWLzIr8Al+dXgrH5suQckXok8uJG2xKOYUFiEIzEVL9KBKv+NEPg9ayldZev+dOxU+AQ==
Merkle root: 3030a3ea5b39192cafd732e0b397cfa387f40a2253f2715cd6a4d9d218dba468
Merkle path: ["12b85debc3db97a3d2bfb224ead4ff9bbe8f4001121062e9d48397bec230ed4b","a46b2ce644055dce4612c32a5132a897acaad4166214a0426e8b0cbd6be0d262","8faed258d1379907ed032da04cf60998875355086ac72e9a42c121ea62c6f2fd","d0bb1a39e2038f1c93d5112a936bcb63fc104d1cfeaddf3c1b31e518935c3df1","ae70b306411136c50414e2e062f7cd5d6c210336512bf4021d9ddc73a67f46cb","c1be8a5f40a2a9f701c8f5173c5f12b2c13746b359351e65d99cb3a6e665d1b1","cd3756ae4155ac60b38e255b5690ab325ea36a5d897201f49e7ab8229d3c0e1a","3570ebd756ff0276a0c0c87db2a4ed0dd0e2c0a61a7dc73efd6954570034f361","388ed1bb086aa5fc0a2aedb5e53c2a69498e60a497f8875312338e50ab1f20fe","1d900bbf48550a1b6278cb3f5ad59b7784f7d8daa19aec0b1b69c8dc7fb39499","39a781de5d96f4582201e63b9986852a87edc4ddc7315034b0d36f4b997af08d","d01331f58a5f612d13ba4cb0aa47c1d106456b6bb5e2c1b33aa11db914fcef4f","b64580ae2e791e45fd127b60024d48487709b542c33fc98dae2df9989ebde8e1","9ee4f1ac41a4f361e945cf5ef1d6706808f116e9d2757e90134564b7d4d09bcd","559fcf7745d7b07c729ccd960c18a4660eed501cde8669d27c3235203d371b20"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514446349 · entry 108e9186e8c5677af084…
Expected log hash: 901e903dca7784cbcc0b860ca8f2ae684aa8c7d566efb3654aface7bae409ccd 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":"v1787128322154","kind":"published-quote","locale":"de","page":"subtheme:meteomatics/quality/widget-funktionalitaet/de","quote":"Eine tolle Wetter-App, schlank und ohne Werbung.","rating":4,"review_date":"2026-04-13","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 (3030a3ea5b39…), 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.