Bitcoin's mining difficulty rose 1.31 percent on Saturday at block height 965664, marking the eighth adjustment this year. Difficulty now stands at 127.45 trillion.
The protocol automatically adjusts difficulty every 2,016 blocks—roughly every two weeks—to maintain ten-minute block times. When hashrate increases and blocks mine too fast, difficulty rises; when it falls, difficulty drops. The latest epoch mined faster than target, triggering the increase.
Hashprice jumped 22.24 percent over the last month, rising from $32.42 to $39.63 per petahash per second per day. This climb tracks directly to Bitcoin's price appreciation.
But here's the tell: despite higher profitability, the network's hashrate stalled at 934 exahashes per second, staying well below 1 zettahash per second. Miners aren't deploying new rigs. Hardware constraints and cautious positioning suggest the industry is tapped out on expansion.
Transaction fees remain negligible—just 0.43 percent of miner rewards over the last day. Spot BTC price action alone drives miner revenue.
Year-to-date, Bitcoin has absorbed eight difficulty increases totaling 33.34 percent but ten decreases totaling 45.27 percent, resulting in a net 11.93 percent decline. Difficulty fell from 146.47 trillion in January to 127.45 trillion today.
The stagnant hashrate during rising hashprice is the critical signal: miners lack the hardware to capitalize on improved economics. Any sharp Bitcoin price move will expose these operational limits.
