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.
“Zasta helped me a lot.”
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 2948162176
Proof data
- Record hash (SHA-256)
0879a670cab06bee478edba865cb8d40c3e5f2f864b53f8dffead07c4b76f1dd- Signature (Ed25519, base64)
fsytzLjZptIDOpJp76q2GKLlFOkfzf4vcOCllagetTsVhfCxiUTjE6h4xz5aPJk7CeLPtoxCi0rM2/XVMPdkAw==- Merkle root
5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd- Merkle path
["0876a076a4ced4c206beb18d26daa1fcbe1edcb227caa1041c6f03e51a1e36f4","eb81ee7d8d50f50a4f64da976d7e584ce9fafdff40bf1177edc7f1589060b1c9","511a45be74f1da346134daa90bfc5609a2c3af566cbb2798db333b5c742c9c43","a8944186f3894559c1da345e350cad17d16e624778051b42cdac380ff3f582bf","851b2a70cd7b90ae94abc866ea1a4b9e6612dbdc49b8256e1b8fdc6799cedaec","728550cfbe59ebf4087556d37ef82de10a3959e36740afd9d0088b3aeeea9466","0e5f10e18e7093309bc61145fb49afd26fbccf01818c9c54c62f98969b7d3460","d641b8b50a3fe58baa67d3b17f119b0f1b8fa96d223209986f9b0087e4c65700","8de1bf36fda9a9fb4a03123ffdbab67cf2b504b2f7f10ad925349b47d1f1c2aa","2a7b11a4c8080cc9858ae51f64bfa3986e1cd5ae1c61f625207ff7df04baf585","ebd887b95c65ad2e1eeee485ce3f91f11639667ec3a8cb8c2ad90e2bb352e451","f16a91ba7d5eb8499cdb4b6b74f78187d85f6744d7e21d3a134538037c0f4c88","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]- Anchored
- 2026-09-25
- Public log entry
-
search.sigstore.dev, log index 2948162176 · entry
108e9186e8c5677a61d4… - Expected log hash
-
5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81beThe 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":"v1790226990092","kind":"published-quote","locale":"en","page":"subtheme:zasta/service/misleading-ads/en","quote":"Zasta helped me a lot.","rating":4,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (539721061967…), 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.