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.

“Filling it out was easy”
Google Play · 5/5 · 2026-09-19

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 3248278454

Proof data

Record hash (SHA-256): 5c4541bcea074e43a53ae9b5f9c949d73317c91f878014778c2377e23317ced0
Signature (Ed25519, base64): Sin9I1Xx5Pm8NWTwZM1HfqBzp/CXukN7TBtt+Ag428AioaAh84VWgZ+MmErrqsInXfv2NQXgG+TTHFzX6SKRCQ==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["5c3e1f680f798c05cb51066ce45291f48bda95bd6cbbcf4784bc9c3f7c464a9b","8bda0e178620ebdcba499d215532999ee8291228da2f9a23eefadb7b01233a8a","303d6273ffc4d16ebe83b02d67b7ea88bf03732cb3f5c97545bde000133684cc","3aefeaa30a76d6b62fc12cca5fc45297297062f8b9070a25845f7e2bb099b5e4","8637f4b65a51238c1e35df906481e275e476ef740a1cd1cf975d3c561aef7f2a","935316fc9ace76f24fe3e770804bb99fe3668dcb342b67f20cdae960fa67ad17","ea187d7eb469761f9acf4de26e914cb3dbf929cb75defb1afda3ed9f36e86c95","3b0cb83a950fbf5ff079e18632d350a8309eb2258fcb4840e2451657e7a36071","6ab9923be3ad01d669c64d169ae58751d99a85808ec547a6b22faee5b612f326","c5614fddd4764402696d9e6d0dd92872c1489f9bf6270c668621fa04b96236d8","47b520370c368ef7b87d44378ac62b96d7cb8197c05d4ccbd45c2c0301b2ba6d","cecda8cf59675307c2097f3c9b95f70464ca6c0cc9dde9f98213537f2b0274b5","9fcda85d8e37e19a15f376a43900980403d080527146762503d0fea51bd87692","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Filling it out was easy","rating":5,"review_date":"2026-09-19","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.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (81db1abd6b6e…), 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.