CSD (Central shopping area memory chain) is a decentralized, social, open source, reserve and other resources, and entertainment consumption integrated platform based on Ethereum. The Open-source software designed and released is a branch of ETH network, and is a digital currency in the form of P2P. Unlike most currencies, CSD does not rely on specific monetary institutions for issuance, but rather relies on specific algorithms and is generated through extensive calculations. CSD uses the Distributed database composed of many nodes in the entire P2P network to confirm and record all transactions, and uses Cryptography design to ensure the security of all links of currency circulation....