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.

“Aber als großes Plus gilt zusätzlich, dass die App kostenlos und werbefrei ist!”
Google Play · 4/5 · 2026-06-05

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 3258717636

Proof data

Record hash (SHA-256): 0527f1f31efc0686a5f58cb448b0bed320ccdc3e7312303c30da6949ef8e18af
Signature (Ed25519, base64): ZOA4Ssi/1tyrYpgAFfxWcPME4lLtnjExNJo/kPxX3yhXa1xMPVMG1gTQV2xRIlcxUn80SBw6SzRyk8MuiCLOAA==
Merkle root: c1d49fab62e94ee1796f3eb15e1a21f856756e9a68ad117a17ae6c9694ffe1e9
Merkle path: ["0528839779203206bf2f9ae50e8762b6fbaf92ca7ce4be4bdb4fa2d319c39bdc","3e35c61f683c5d72df90f8a7f0bab7370d862da77d9c5235c701f3c893237d55","578baf6cb398b0dbb9cb21ecd2b76178b8c4c859f1ba553a143e5b903fc30a25","797dc2988303867a802a58fe7fa9d5f214abe2a31ccfb16913a38ba774548ee6","2ab251d42ba21d599b8b2a2ba59a082a0fe38c23fb589c60617d9b3cb6c0dc33","cd9f8996e8a03d0a2326152fb87f37878667a7cfe052edb3c5b58615d677dbce","22cab5ad76af9e99401380ca40d87c4b7b9e5377fdfbf7ead6065bf60c94c8bd","b7406cb9b4b4066ccbe560cffc6ac687634995c6418e799e67898bb17bfb9f99","8c8deef4d7706beb3fa61b30e69a9bce1267a403ce2db49628cc9288751fc3ed","e6db3ed0df7748ef325ac55dfbce627aa766f6ed408ac7ca078e7168bd572ddd","d3ed394b86f69b760fb77a1c3c31f997206df8fc3466086cc195eddf9b175789","219bd599cfb89fbe7096defae6a66c994562ac0a422a5db43368bd9cf9789683","856d9a6a3e94d695a98fa0bb5ce8d80e9fc70a3794652b53ea754ef3c0720b7a","436050ea3288f64644ca44d910bc166b737265d33885dda72495c78f7429279a"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258717636 · entry 108e9186e8c5677abf47…
Expected log hash: 30640a6c2a3bbbd5aa6e5244e634da7339a6d42d7209b3c3a5dde0fcd662474c 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":"v1792034121129","kind":"published-quote","locale":"de","page":"brand:meteomatics","quote":"Aber als großes Plus gilt zusätzlich, dass die App kostenlos und werbefrei ist!","rating":4,"review_date":"2026-06-05","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 (c1d49fab62e9…), 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.