Aelf OS was developed on Aelf as an open-source operating system like Linux to encourage a more cohesive dApp ecosystem. It uses both internal and external sidechains, along with a Delegated Proof of Stake consensus, to build a decentralized cloud computing network. ELF is the native ERC-20 token for the Aelf platform.To establish a Blockchain infrastructure for various commercial requirements, ælf provides a highly efficient multi-chain parallel-processing system with cross-chain communication and self-evolving governance. It brings three innovations namely scalable nodes on cluster of computers, resource isolation for smart contracts via “one chain to one smart contract” and voting through token holders.