Bitcoin miners revenues dropped in September due to a rising network hash rate and increasing mining difficulty.
The network hash rate increased by 2%, reaching 643 exahashes per second (EH/s), causing mining difficulty to peak and reducing miners' average income per exahash by 6%.
Miners faced challenges from lower rewards and higher costs after the halving, resulting in reduced profitability.
Some mining companies are exploring diversification into artificial intelligence and high-performance computing to sustain their operations.