Sandy Zhou

Add POW consensus

2

Add a POW consensus implementation. Please refer to the document about how to develop a consensus plugin in BitXHub: https://meshplus.github.io/bitxhub/bitxhub/dev/consensus/

Implement checkpoint for RAFT consensus

1

Raft nodes should check the blockchain state with other nodes at each checkpoint. If failed, the node should rollback state to last checkpoint.

Transaction/state syncing for specified appchains

1

Implement the sync protocol to sync transaction and state data for some specified appchains.

Benchmark interchain transaction performance.

Implement nodes’ addition and deletion for raft consensus.