Bitcoin's mining difficulty rose 1.31% at block height 965664, bringing the network's difficulty to 127.45 trillion. This marks the eighth difficulty increase in 2026 out of 18 total adjustments since January.
The difficulty adjustment occurs automatically every 2,016 mined blocks to maintain average block times of roughly ten minutes. When hashrate increases, difficulty rises to slow block production. Conversely, reduced mining participation causes difficulty to drop.
Despite the modest difficulty increase, Bitcoin's hashprice—the estimated value generated per petahash per second of computing power daily—surged 22.24% from $32.42 to $39.63 over the past month. However, the network's hashrate remained below 1 zettahash per second at 934 exahashes per second.
Mining revenue dynamics show significant dependence on Bitcoin's price movements. Miners earned only 0.43% of total rewards from transaction fees over the past 24 hours, underscoring how closely miner profitability is tied to BTC's market value rather than network activity.
Throughout 2026, Bitcoin's difficulty has experienced considerable volatility. Eight increases totaling 33.34% have been offset by ten decreases amounting to 45.27%, resulting in a net decline of 11.93% for the year. After a rough start and volatile spring, the network saw sharper difficulty slides in mid-June before stabilizing with modest movements since July.
