DataAnchor

1// DataAnchor - Minimal contract for anchoring certificate data (JSON) on Flow.
2// Deploy this contract to your account, then use record_data.cdc to submit data.
3// No persistent storage (keeps cost low); the event is the on-chain proof.
4
5access(all) contract DataAnchor {
6
7    // Emitted when certificate data is anchored. The transaction ID is the proof.
8    access(all) event DataAnchored(data: String, timestamp: UFix64)
9
10    access(all) fun recordData(data: String) {
11        emit DataAnchored(data: data, timestamp: getCurrentBlock().timestamp)
12    }
13}
14