The market cap of Bitcoin miners soared in September as firms in the space benefited from pivots to high-powered computing that feeds the burgeoning artificial intelligence sector, according to a report from JP Morgan.   Analysts at the banking giant highlighted the surge in a Wednesday report, noting that the combined value of the 14 top publicly traded miners it tracks passed $50 billion for the first time ever.  Top mining stocks this week have jumped in value with the price of the leading cryptocurrency ...