Bitcoin mining difficulty surged again, marking a fresh peak that could reshape miner economics. According to the source, the latest adjustment underscores stronger network security and rising competition among miners. This trend highlights how Bitcoin mining difficulty interacts with hash rate and miner revenue.
Difficulty jumps to a record level
On September 18, 2025, at block height 915,264, Bitcoin’s mining difficulty reportedly rose by 4.63% to an unprecedented 142.34 T. This milestone arrives as the network hash rate reached a record 1.09 ZH/s. Therefore, securing the network now demands more computational power than ever, reflecting elevated Bitcoin mining difficulty.
Since the start of 2025, difficulty has climbed 29.6%. As a result, miners must deploy more efficient hardware or optimize operations to maintain margins. However, the rising bar also signals robust network participation and resilience driven by Bitcoin mining difficulty.
Miner revenues rise despite tougher conditions
Despite the heightened computational burden, miner revenues have reportedly surged over 100% year-over-year in 2025. Industry watchers tie this to Bitcoin’s significant price rally, which can offset higher operating costs. Nevertheless, profitability remains uneven across operators, depending on power prices and fleet efficiency amid higher Bitcoin mining difficulty.
Key takeaways:
• Difficulty increased 4.63% to 142.34 T at block 915,264.
• Network hash rate reportedly hit 1.09 ZH/s, a new high.
• Difficulty is up 29.6% in 2025 to date.
• Miner revenues are reportedly up over 100% year-over-year in 2025.
What it means for the network
Higher difficulty generally strengthens security, since attacks become costlier. Meanwhile, miners may consolidate, as older rigs struggle. However, efficient operators could benefit if Bitcoin’s price momentum holds, especially as Bitcoin mining difficulty remains elevated.
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For context on how on-chain metrics interact with market dynamics, readers can review an explainer from Wikipedia on the Bitcoin network.
Understanding the mechanics behind stable value and liquidity can also help contextualize miner cash flow and treasury choices. For a primer, see our guide on how stablecoins work.
