Bitcoin miners are currently making more than $50 million in daily revenue.
Miners earn income through block subsidies and transaction fees, with transaction fees fluctuating based on network activity.
The decline in Bitcoin miner revenue earlier in the year was due to a drop in the asset's price and transfer fees.
With the recent bullish momentum in the cryptocurrency market, miner revenue has bounced back to around $51.6 million per day, still below the peaks of $80 million seen in previous years.