Bitcoin network doubles in 4 weeks - ASIC bitcoin miners to thank 10/14/2013 - 00:00 In mid-September, after 4.75 years in existence, the bitcoin network reached an estimated hash rate of 1 petahash per second. Remarkably, the second petahash took just one more month, pushing network speed over 2 PH/s this past weekend, or 80x the speed on January 1 of this year.
