Bitcoin Cash has seen an unusual surge in mining activity after an unidentified miner known as Phoenix sharply increased its hashrate allocation to the network. The move pushed BCH hashrate to an all-time high above 10 EH/s. According to the report, Phoenix processed 88% of all blocks mined on June 3, allowing it to capture a significant portion of the network’s fresh block subsidies.
The development has drawn attention because the scale of the hashrate increase appears disconnected from recent market conditions. Mining power typically follows price and profitability, so a near threefold jump in BCH hashrate during a market downturn has raised questions across the community about what Phoenix is trying to achieve.
Two Main Theories Behind the Move
One theory suggests the miner may be trying to accumulate BCH ahead of a possible market catalyst. Community commentary cited the upcoming Mt. Gox coin release as a potential event that could affect exchange flows between BTC and BCH. In that scenario, controlling a dominant share of block production could help a miner secure more BCH rewards before trading activity changes.
A more concerning interpretation is that the hashrate surge could be part of a setup for a chain attack. Some observers argue that a large hashrate increase that does not clearly align with profitability is highly unusual. At the same time, others note that if an attacker were preparing a strike, acting more abruptly might be more effective than allowing BCH’s difficulty adjustment mechanism time to react, which may reduce the likelihood of an immediate attack.
Pressure on Miners and Market Expectations
The sudden rise in BCH hashrate could also pressure other miners. If BCH price does not climb in response, some operators may need to redirect machines back to BTC in order to preserve margins. Community commentators have argued that price may eventually need to reflect the stronger hashrate confidence.
The report also noted that BCH experienced a similar hashrate surge in March, which was followed by a rally that took the asset to around $700. For now, however, it remains unclear whether Phoenix’s aggressive expansion reflects confidence in BCH’s outlook or a more strategic and potentially riskier plan.

