OpenSea, an NFT marketplace, announced that it will support Arbitrum, a second-layer Ethereum solution, starting September 21. OpenSea said that this is the first step in its goal of building the future of Web3, where people can access the NFT they want on their favorite chain. NFT projects on the Arbitrum chain, such as Smolverse, GMX Blueberry Club, dopex, etc., will be listed on OpenSea. After publishing, creators need to find NFT collections in OpenSea and set creator fees directly, creators are encouraged to do so at launch so they are ready for new transactions.