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. This growth is primarily attributable to new ASIC bitcoin miners from KnCMiner and BTCGarden recently being added to the network, and is a trend that is not expected to stop any time soon. KnC was the first manufacturer to demonstrate a 28nm ASIC bitcoin miner on September 30 and started shipping to …
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