Music chain is a new digital blockchain technology jointly developed by International Risk Control Copyright Group Holdings Co., Ltd. and Spotify technical team for 3 years, and it is one of the core areas of blockchain technology implementation. It includes mainstream functions such as music copyright purchase, peer-to-peer transfer, property rights holder access, online and offline transaction payment, etc. By building on the relatively mature and iterative Ethereum (Ethereum is an open source, public distributed computing platform, which provides a distributed Turing-complete virtual machine that supports running smart contracts), it will support the mainstream in the future Copyright in the cultural field, in-vehicle music social software and other landing applications, and gradually develop and extend the application of peripheral industries in the future.