China, home to the world’s biggest community of Bitcoin miners, is cracking down on cryptocurrency activity. From a halt to virtual currency trading on domestic exchanges to banning initial coin offerings, regulators have taken a proactive role in shaping the stratospheric rise of Bitcoin and its peers. The country’s moves come as President Xi Jinping targets financial risk in the economy following a decade of booms and busts in everything from stocks to real estate. The result: China’s once-dominant role in the world of cryptocurrencies is shrinking. More….