PrmiChain is a decentralized distributed sharing system based on blockchain, which is used to form and execute storage contracts between end-to-end, negotiate contracts end-to-end on prmiChain, transmit data, verify the integrity of remote data and Availability, retrieval data and content addresses are available. Through the optimization of the block interval, block capacity, and consensus algorithm, the usable performance of 1000TPS can be theoretically achieved. As the core part of the prmichain platform, prmiChain links all terminals, so that all network terminal nodes can not only act as Browser or Client, but also can be the operator of this network, and everyone can be a server.