2.2 Core Architecture
Last updated
Last updated
PEM utilizes a multi-layer architecture, which from top to bottom mainly includes:
Top Layer Applications : Solidity smart contract language, decentralized applications (DApps), payment transactions.
API Interface Services : Providing HTTP, TCP-related interface RPC framework services.
Distributed Ledger : Including transactions, blocks, block verification tools, receipts, state data, and transaction pool-related information.
Virtual Machine (PVM): The core execution layer for smart contracts.
Consensus : A hybrid consensus mechanism that combines Proof of Work (PoW) and Byzantine Fault Tolerance (BFT) algorithms.
Network Services : Peer-to-peer node discovery and connection services, blockchain synchronization services.
Underlying Services : Database (levelDB, etc.), cryptography (elliptic curve algorithms, etc.), basic algorithms (MPT/Bloom/RLP, etc).
