Epik (v0.3.0)

Testnet Beta (codename: Epik)

1. TBC (Transactions, Block & Chain)

• Bech32-encoded address
• Serialization and deserialize of messages on the wire
• Merkle tree
• Actions, transfers, votes, blocks and chain
• Fast and reliable blockchain/state storage via BoltDB and DB transaction support
• Improved block sync from network peers
• Basic framework for script and VM
• Account/state layer built on top of Merkle Patricia tree
• Voting and unvoting for block producer candidates
• New account-based action pool
• Initial implementation of secure keystore of private keys
• Initial integration with Ethereum Virtual Machine (EVM), smart contracts (Solidity)

2. Network

• Efficient gossip protocol over TLS
• Broadcast & unicast semantics
• Seeding through network config
• Rate-limit requests per connection
• Peer discovery
• Large-scale simulation and load test

3. Consensus

• Framework for plugable consensus
• Standalone and NOOP schemes
• Full implementation of FSM-based Roll-DPoS
• Full integration with delegates pool
• Roll-DPoS simulator
• Initial implementation of random beacon

4. Clients

• Full implementation of JSON RPC
• UI Design and backend implementation of explorer
• Command line console
• Basic wallet

5. Crypto

• libsect283 -- lightweight crypto library, with cgo binding
• libtblsmnt -- complete BLS signature parameterization and implementation, with cgo binding
• Implementation of distributed key generation (DKG) with cgo binding

6. Testing & Integration & Deployment

• Improved action injection and address generation tools
• Work-preserving restart
• Dockerization of IoTeX server
• Large-scale testnet deployment via Kubernetes
• Unit test coverage ~70%
• Thorough integration tests
• Enhancement of existing features, performance and robustness