Bitdeer, BitFuFu, Canaan, and CleanSpark released unaudited May production updates this month, with the four miners producing a combined 1,859 bitcoin (BTC) even as their underlying strategies pulled in different directions.

Bitdeer

Bitdeer (BTDR) mined 921 BTC in May, up 370% year-over-year, while its self-mining hash rate held at 70.2 EH/s. That's roughly flat compared with the 70 EH/s the company reported in late March, when it first claimed the industry's top spot in self-mining compute.

Total hash rate under management climbed to 83.1 EH/s from 78.1 EH/s over that stretch, but the gain came mostly from Bitdeer's newer co-mining business, which runs the company's rigs inside third-party data centers and reached 10.0 EH/s in May, up from 8.4 EH/s in April. Self-mining capacity, the metric behind Bitdeer's top-spot claim, has barely moved in two months.

The company's own bitcoin holdings tell a different story than its output.