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 guter/ausführlicher/freundlicher Support 👌🏻 (innerhalb eines Tages)”
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 3240231023
Proof data
- Record hash (SHA-256)
1beeedcdb57de5fc18bbe959cf17b4f324b1f669bbf9d44b7dd2b7610893907a- Signature (Ed25519, base64)
zUR2HKMc88ZRrLUo707pjvho7Rv7uj0ApCnDo5/gRFPxIgtVkmcTscWwxloLcBS2X0WSE0lXyTCqNDAz7YWUCg==- Merkle root
888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84- Merkle path
["1becf3a9e0bc77b664c81619fd6ef2d890522408c5647b5e757a1a25be588d90","affb7fe300426b15cd3e19fae142bac8569c581798673d0c6e33337a6eddf771","d121d2c6ad18b1713b3b104e016c53e12820d353952cee5451e0134292c59ea0","d5fbc57a555e80e5c8a0c6e7e706af5c997bfcc77f2002bfe1725d9535a4d56e","76b71f5d61397745e7fad2534269222cf7101f49baf59e48a81cf23506bff8eb","80706043c256e10a4ae36272101fb9d0928ed705974a97ab1782b7853e861fc9","85bd942e83db2845a212f18a13a378ace52950d0b61cb121859add1d7fea2615","3f42f3dbf9dd5f51b01e82c1f7c2f3f511ae8cad8e6afb513632901bfc20fb73","431d566b946fb028cff5abe69e490f700c4d59a5d58af9640ac49a02346e4885","a5fbf0c21b8acc6c3c93b6bd5ee7017305f498f525f0d5c731cdd805e90d8c42","36593ff6981142345d894360aba2045a8b70ebe4ed0dd9f3ba3c7292169f7244","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]- Anchored
- 2026-10-13
- Public log entry
-
search.sigstore.dev, log index 3240231023 · entry
108e9186e8c5677ac0ab… - Expected log hash
-
bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1791860805798","kind":"published-quote","locale":"de","page":"brand:threema","quote":"sehr guter/ausführlicher/freundlicher Support 👌🏻 (innerhalb eines Tages)","rating":4,"review_date":"2024-11-22","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (888a38c73939…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.