Bitcoin slide sees $44b of market value erased in January

Advanced Micro Device Inc. Radeon RX 570 graphic processing units (GPU), left, an an Intel Corp. heat sink and fan (HSF) for a central processing unit (CPU), right, are seen inside a cryptocurrency 'mining rig', right, sitting on a desk in the office of Open Computing Pte Director Wilson Josup in Singapore, on Tuesday, Jan. 23, 2018. Photographer: We Leng Tay/Bloomberg