In the past 2020, with the DEFI craze and various projects flourishing, NFT has returned to the public view once again. 2020 is a very important year for the blockchain world, with the advent of ETH 2.0, the rise, fall and resurgence of Decentralized Finance (DEFI), and the entry of institutions like PayPal. In the dizzying DEFI project, the non-homogeneous token (NFT), which has been quietly rising steadily, seems to be the hidden big man behind the scenes. It is not to be ignored, and its pote