Magnetic field is a fourth generation innovative public intelligent blockchain platform with smart contract functionality and independent promotion. Through its dedicated Cryptocurrency CCD (magnetic currency), it provides a decentralized fast transaction virtual machine (called "magnetic field virtual machine") to process point-to-point smart contracts.Magnetic field chain is a pioneering proof of equity blockchain network, which is developing into a decentralized application (Cicd) development platform with multi asset Ledger and verifiable smart contracts. The magnetic field chain is built using strict and highly reliable formal development methods, gradually achieving the scalability, interoperability, magnetic field effects, and sustainability required for practical applications....