STL is a distributed currency transaction network based on the STL protocol. STL aims to create a world-leading full-featured ecological application and a new and upgraded global financial system by establishing a multi-integrated pass-through economy, merging and integrating multi-party ecological industry resources, establishing a global ecological alliance and node community Xinghai. The essence of STL is to build a decentralized gateway for the transmission between digital currency and digital currency, and between digital currency and legal currency. It is also the core of a distributed ecological value circulation proof of rights and value generation exchange. The STL network is built based on the bottom layer of Paydex, and Paydex is developed based on the bottom layer of Stellar. Compared with the traditional Bitcoin and Ethereum network, it is faster, safer, more scalable, flexible and private. The STL network and Paydex laboratory are located in Australia and the United States.