To obtain and sell tokens around the Arbitrum (ARB) network, you need to first get yourself a copyright wallet. copyright is a popular browser extension wallet normally employed for interacting with blockchain networks like Ethereum. It is actually available as being a browser extension for well-known browsers for example https://financefeeds.com/this-under-1-defi-copyright-could-be-the-biggest-gainer-this-cycle-ahead-of-cardano-and-dogecoin/