Top US-based crypto exchange platform Coinbase is adding trading support for Ethereum (ETH) layer-2 scaling solution Arbitrum (ARB), a chief competitor of Polygon (MATIC). In a new announcement, Coinbase says that trading for Arbitrum is now available across both iOS and Android with an experimental label a week after it was added to the crypto The post Trading for Polygon (MATIC) Rival Arbitrum (ARB) Goes Live on Top US Exchange Coinbase appeared first on The Daily Hodl .