20 millionth Bitcoin mined; last 1 million coins to be mined over next 114 years

The 20 millionth Bitcoin was mined on Monday, leaving about one million coins yet to be mined over the next roughly 114 years. The last coin is expected to be mined in 2140 due to a process called "halving", which reduces Bitcoin mining reward by half roughly every four years. The world's largest cryptocurrency is currently priced at around $69,700.