event BlockVerified(uint256 id, bytes32 blockHash)

event BlockCommitted(uint64 commitSlot, uint64 commitHeight, bytes32 commitHash)

event BlockProposed(uint256 id, struct TaikoData.BlockMetadata meta)

event BlockProven(uint256 id, bytes32 parentHash, bytes32 blockHash, uint64 timestamp, uint64 provenAt, address prover)

event Halted(bool halted)