The Antminer S19j Pro accounts for 34.3% of the network hashrate and the S19 for 28.1%, and they have been the most used machines on the network since March 2021, Coinmetrics found. The Antminer S19 XP accounts for another 13.7% of the network hashrate, said the report. Meanwhile, MicroBT’s M50 is below the threshold of detectability, the researchers said.