Digital Asset Coin (DA), with a constant circulation of 500 million pieces, has overturned the initial definition of currency exchange media, value storage, and accounting units in the financial industry with its basic attributes of global circulation, scenario applications, and convenient payments. It further extends the prospects of digital currencies through consensus mechanisms, intelligent computing, and contract incentives.The digital currency represented by DA has gained a considerable degree of market acceptance in European and American countries. It can not only be used by merchants to pay for goods with DA, but also has derived a more diverse range of online and offline scenario applications of DA. The large transaction volume and liquidity between DA and various industry sectors are sufficient to be regarded as an internationally recognized currency. The rise of the DA network has attracted the attention of various sectors of society to the distributed ledger blockchain technology behind it, and has gradually been developed and applied in many scenarios outside of digital currency....