As a virtual world, the metaverse needs to be recognized for its virtual material value and exchange system if it wants to develop, prosper, and further influence the real world. Take the current online games as an example. The current Internet world's common problem is that the pricing power and ownership of virtual items are in the hands of Internet companies, and a series of assets such as props, skins, game tokens, and even game accounts purchased by players in the game. The ownershi...