CPChain (CPC)

What is CPChain

Cyber-Physical Chain (CPChain) deeply integrates blockchain with Internet of Things (IoT) to realize a decentralized and trusted brand-new distributed IoT systems. It can reduce the cost of system interconnection, increase the value of data sharing, and ensure user privacy and system security. CPChain focuses on the scalability, security and real-time issues that blockchain faces in the Internet of Things industry. By combining the three technologies: blockchain, Internet of Things and distributed encryption storage and computing, it builds a new generation of Internet of Things, which can provide entire solutions for data acquisition, sharing and application in IoT industry. CPChain focuses on multi-party data transactions and IoT-big-data-based Artificial Intelligence (AI) decision-making applications, establishes multi-faceted trust and heterogeneous data interconnection, and solves the pain points in the industry. Moreover, an explosive and innovative business model of new generation of data sharing is built based on CPChain.

Key Technologies of CPChain

The parallel distributed architecture which separates the data layer from the control layer by CPChain can greatly improve the transaction speed and system extensibility without changing the block capacity. But it also faces new challenges. For example, after separating the data layer from the control layer, it is necessary to build a distributed storage network and ensure efficient interaction with the blockchain, and an effective connection must be established between the two parallel architectures. At the same time, the security and efficiency of the system should be guaranteed. In addition, if the data layer is independent, the block chain itself will be abandoned to protect the privacy of the data, so we must design a privacy protection scheme based on encryption technology. The encryption function based on re-encryption or homomorphic encryption has certain requirements for computing resources, but the block chain itself has limited computing resources and high cost, so it is necessary to strike a balance between privacy and availability.

In large scale P2P networks, due to the large scale of nodes and the heterogeneity of data, there is a great challenge to ensure the consistency in the process of node state synchronization and data security storage. However, the current block chain distributed network based on the power of work (POW) consensus protocol has some problems, such as scalability, waste of computational power and limited block speed. CPChain adopts the two-layer consensus protocol solution, designs the dynamic committee security election mechanism, solves the low throughput and the high delay problem, enhances the data consistency and the system security. In addition, CPChain is oriented to the characteristics of the Internet of things industry and adopts a cross-chain architecture. That is, based on the main chain, CPChain provides industry-oriented sidechain network function expansion for diversified practical application scenarios. The main chain network is mainly used for the high-speed control channel of IoT data exchange.