Bitcoin mining difficulty fell 10.09 percent, Cointelegraph reported on June 15 local time.
It was the second-largest downward adjustment this year.
Galaxy Research said the decline was the second-largest of 2026 and about 20 percent below a peak in November last year.
Lower hashrate led to the drop in difficulty, an analysis said. Cointelegraph reported that bitcoin prices fell about 15 percent in June, shrinking miners' margins and pushing some hashrate off the network.
The bitcoin network adjusts difficulty to keep block production speed steady even when mining computing power changes. The decline means miners can mine blocks in a less competitive environment than before.
Bitcoin's total hashrate currently stands at 886 exahashes per second (EH/s). It is down 12 percent this month and 23 percent below a peak in October last year.
Chi-gyu Hwang (황치규)
delight@d-today.co.kr