CQC (Cloud Quotient Chain) is a blockchain network that establishes system trust between accounts. It evaluates the reputation value of account specific transaction targets through blockchain transaction records and trust algorithms, recommends matchmaking, and uses POC and PGPOW (fusion of pos and pow advantages) consensus algorithm to establish an incentive system and increase the default cost of transaction users. The network uses JavaScript language, modular design, and realizes the blockchain system with multi chain architecture. It has the characteristics of high performance, high security, high degree of decentralization, and strong scalability from the whole network. It is friendly to developers, and is a complete system for decentralized application landing.CQC adopts a multi chain parallel structure, which is divided into transaction chain, CQC chain, and NCQC chain. Each chain belongs to an autonomous domain. Other blockchain systems, such as Ethereum and Bitcoin Network, are also considered as autonomous domains by the system, and cross chain functions are realized through unique autonomous domains....