PayChain - Alipay in the blockchain payment field. The PayChain team currently owns color blockchain technology patents and several software copyrights. The core members of the PayChain team are all from the blockchain industry, with deep industry resources and background. The PayChain development team has many technological innovations in its development, including payment chain technology (PAY) and MHT technology (Matching hedge technology) independently developed by PayChain.Payment Chain Technology (PAY) is independently developed by the PayChain development team, and a payment chain network (PAY Chain) based on payment chain technology (PAY) is built at the bottom layer. It comprehensively utilizes technologies such as 2-of-2 multi-signature, lock time transactions, and transaction construction delay broadcasting. It can achieve zero transaction fees and fast transfer of blockchain assets without trust, in terms of speed, security, and privacy, It is comparable to Lightning Network.