JUST IN: World's former largest Bitcoin mining pool, Poolin, files for bankruptcy. Poolin plans to sell two Texas mining sites after listing as little as $1M in assets but up to $500M in liabilities. It owes roughly $173M, including $164M to customers after withdrawals were suspended. At its peak in 2019, Poolin mined roughly 1 in every 7 Bitcoin blocks worldwide.(Coin Bureau)