Bitcoin is getting hammered in markets that trade the digital currency, prompting providers of its core computing infrastructure to shut down operations.

The selloff, which appears to have been exacerbated when Asian traders were forced to meet collateral demands under margin trading rules, left bitcoin down 14.49% at $194.04 in the late New York morning Wednesday, following a 15.02% plunge Tuesday, according to news service Coindesk. The digital currency is now down 39% from Dec. 31 alone and is off 83% from the all-time high of $1,165 that it hit at the end of a furious rally in November 2013.