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.

“it is explained really step by step”
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 3163352270

Proof data

Record hash (SHA-256): 524bd12aca8922ca6fc1ebba772aaf9a96ca75766f9a601f7d30c4b81661d6b0
Signature (Ed25519, base64): D0fD0uczygxldx0RdAQ/d2XKdhBFo4DMbUG10+CCyC5KkzRiXWuFMGRhAx52BoSLH7tcxvyl/rqnWbLIDpheDA==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["52479e2539a026f1df481df6b638b898a44a164528fc4bd7da42cbbffc70b976","913e01a22154b05014ade57b7f2599c533e004efbe17a8321564b4d35056d4e9","bb7a2af07e924c0ce7a46d05696fba3868a48d6f854e97be46586d8ce779fd64","32e60d2565bdef4bcbace0750ee4cf9598e3114736f88e7526738135542bec17","dae3c721f58f4fae89173d3251fbed4d44f672ecde838fbc38655d720ebb5d32","7442c4408880fd2258b7c08005beecce2ba68e5718e5552f419224f83753e56d","23a6af8fad44d626748875b7335a733851d962bd0b99e9f743f13621ecf49226","103a81ec002d1034c59761f3d3758e98513b8aab96242a8f386ee40fa671fc2b","c7c8d1cda47965b94b5709595df833937e765e8ed847fe96b6150fcc996aa3d8","4375b7d9621f5dc613f66ca81920bd1fea762e858e3b08eadc2007f2f313ba5d","0f6141035fc654373fa68607e905d183a1565d2fd8d74535155178f8ac9b5a19","df4080343f159e809d1e5bc9f8a14b1ad519cf12a20097b0d95cee98c4ce6d74","2c4a19f22e337f5c4b12692deb8a5f8a7c64abf566c3dce060b63f26f421c3f4","7c65cdc9460755a327943aea2ce97e2f5c6080d778d9434fe2dafbfbc1e3b04c","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"it is explained really step by step","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 (784ff8fc3c42…), 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.