Argo Blockchain reported first-quarter net profit of £1.6 million ($2.1 million), down more than 90 percent year-on-year. Argo cited factors such as changes in the fair value of digital currencies, where Bitcoin was around $40,000 in the first quarter, compared to nearly $60,000 in the same period last year. Argo mined 470 bitcoins and their equivalent, compared to 387 a year earlier. Argo held 2,700 bitcoins and bitcoin equivalents at the end of the first quarter. Argo has borrowed $70.6 mil...