Early stage, still under development.

1. Graph-based scheduler algorithm implementation, see INTRO SCHEDULER.
2. Tagged primitive resource Data-Structure (sstable a.k.a. sorted string table), the basic element for resource isolation, backed by distributed KV database. This structure is comparable to dataflow processing paradigm (e.g. mr/reactivex).
3. In-cluster wire protocol (data/task marshal/unmarshal).
4. Actor (e.g. akka) based task distribution inside a single cluster/ledger.
5. Contract as demostration of concurrent execution.

1. tx_pool/mem_pool design (unconfirmed tx).
2. Basic block in-memory construct, eg: merkletree, block header, transactions, statsdb, caching.
3. Wire protocol for inter-ledger block/tx transfering.
4. DPoS implementation, hashing, mining.
5. Block validator, crypto related algorithms, e.g. signing, hmac.
6. p2p discovery/communication.

1. Crosschain，two-way peg, merkle proofs.
2. Event trigger from one sidechain to another a.k.a cross chain interoperability.

1. Voting mechanism for sidechain join/leave
2. Voting mechanism for emergency treatment

1. Code optimization before mainnet launching.
2. Code review, pre-releases.
3. Business case battle test(public beta).