According to ChainCatcher, CryptoSlam data shows that in the past 7 days, the transaction volume of NFT on the Polygon chain exceeded 22.69 million US dollars, ranking second, up 33.71% from the previous month. During the same period, the transaction volume of NFT on the Ethereum chain exceeded 33.06 million US dollars, ranking first, but fell 10.37% from the previous month. The transaction volume of NFT on the Bitcoin chain exceeded 18.23 million US dollars, ranking third, up 8.35% from the previous month.