aelf is an open-source blockchain network designed as a complete business solution that utilizes a structure of 'one main chain + multiple side chains' to enable effective resource isolation. It achieves high throughput through parallel processing and the AEDPoS consensus mechanism. aelf achieves efficient and secure communication between the main chain and all side chains, allowing direct interoperability between them. The ELF token is the aelf utility token, which is mined on the aelf mainnet explorer and was previously an ERC-20 token.