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.

“Funktioniert einwandfrei.”
Google Play · 5/5 · 2026-05-21

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 2543154575

Proof data

Record hash (SHA-256): 0a972f1cc1334fb2cb6a6e4068f41b0a5ced98f0e99352a1cdd30cc6df15cafa
Signature (Ed25519, base64): GlfLC6N8iL+XYFyxeXIIlNYr0Nzzxw0AZW/kycohYmKu6+ae4iKTeSkUXt053Dk/9mKOoR9sC0daHgbnOmLfBQ==
Merkle root: 9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e
Merkle path: ["0a94ffc839a4c46773f29b21e05e580adecfa754b04f82e5e3147ff845ba0a6c","fa7bd89c1409a3e3cd07b7ccaa1ed001ae981da95d28a7bd5238ad76512c4938","b98574ba7f5e0d145e37a8da851821b45fa742ce5960c8ed6959510cdb03a3ec","28a1ec17b85a9fe8acc162aa4e1f62c6ee7d8bcbca7f6d1c581cee765b046c62","e672419991c759945ee0543a54fc0c77492e9fd1f83def4b9ffff76c8e4f632b","4f61a71c80c8ebd67625906ad38f055587e61e45b4b1ebb7bb792f0f24522c02","b9fc27a9cf498f1a485110e714e9a7a3b86bcc687b0360a5d8bf987cc850269d","ee59dde9611617e886f216d981e687940bf9ffdeef4658f5bf6ae91269eea74a","b163496baa900a56996340aaed0cb5eab3bf5e5ee8d2532f9a06d50065ff7922","2608ab6863d0907b2a717031249d6288722ef8363b8434b4362188996af4c477","14e186e73f4efc5892136dea1954d4b7a626aa48878f89b4b38674671043ed29","041f9c16598b3da12cb223fe41597ccb0f25efb5fe011f3cb0a58262fd9f7e82","92bd38359a2f7e9a0cfb63e15fa5bc91828bc74a6fd1daabc0f50bab390b730a","78e3a01c18db7a3aa85fa160432e1aa22e4b131e9c27c5e2e4566764a2ee13b9","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…
Expected log hash: 0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","kind":"published-quote","locale":"de","page":"subtheme:meteomatics/quality/datenverlaesslichkeit/de","quote":"Funktioniert einwandfrei.","rating":5,"review_date":"2026-05-21","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 (9ca8f1c1ad15…), 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.