Subscribe to Fortune Daily to get essential business stories straight to your inbox each morning.For the first time in four years, venture investors are backing more crypto and blockchain startups in the U.S. than they are in Asia—a sign that China’s crackdown on alternative currencies has chilled the country’s upstart industry. Though the country was once a crypto capital, China’s new restrictions on tech companies have driven down the number of cryptocurrency and blockchain startups getting funding, according to year-to-date data collected by research firm CB Insights . Beijing forbid crypto mining and banking operations this spring and then banned...