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.
“Everything was explained very clearly through questions.”
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)
014f8ddc0487a8081dfbcc5ee749f8baa02363c54b425cb590f42185a39dce52- Signature (Ed25519, base64)
8/xZ7eAICK2ekQGM1e1ilpV7c0jA7tZeX8rivoBvtlOkiYmtbe+YmpQO9oqOeBY68jdZZU2OLCh/gk3kg+62Dw==- Merkle root
5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd- Merkle path
["014e65908b947a824adf3734a523c6d0d7b1a47cc0df3e209ffa84343d48411d","d1e11461a9f5a8bf632cf25a3d53259cd3efb86e524e33042254675e69dfd752","6ed2a700deb0403cef035fa6a54ca2b8c462a31d9eda761c9837c58ea6be5e95","0bcc67cba8b94d39239bb88f7a47706258732a9d2483cfa538c10372739b4b51","04c731d6141404499528524a7bb599a9fbcaf0ccc6ee1b5351a5d870b5095860","d185e6481fe8f9193896bab46c85b563b7ae563407a20fcfcb11976b8b5ad109","1adb707b2b1c44271e2ad29a391a15bf3b65f956adadbdb3747945ed3dcc7e2a","bd5df62d7a062967b9e30bc298d86d8b7a9479db0e5880a87f9d718802db496d","71afec223888b844701ac3526c157c67916e7539fd714466ea90d3ed8d7bfe17","dc68979b3b143435e7e8303c8c8127718e01d8005ad57a79f270159762e57949","3c40bcf6f39dc755c30599a872b73e17a118ccff7cf0a8370e774637cc1af990","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":"theme:zasta/communication/en","quote":"Everything was explained very clearly through questions.","rating":4,"review_date":"2026-08-13","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.