Jack Dorsey's Square to Invest More in Bitcoin Mining and Shut Decentralized 'Web5' Venture

Square is also focusing more on its self-custody wallet, Bitkey, which the company started shipping in March. At the time, the company said that Bitkey will not only provide standard wallet functionality, but also connect to Block’s payments platform Cash App and crypto exchange Coinbase (COIN) to allow buying and selling BTC.