Seven prominent Bitcoin mining pools have come together to form the Stratum V2 working group, aiming to establish an open standard protocol for communication between mining pool operators and individual miners. The pools involved—AntPool, Block Inc, F2Pool, Foundry, MARA Foundation, SpiderPool, and DMND—intend to collaborate on this initiative, which promises to enhance mining efficiency and reduce the time it takes for pools to successfully mine blocks.
As highlighted in the Stratum V2 announcement, the Bitcoin mining landscape is characterized by intense competition and fragmentation. The statement noted, “It is a race for efficiency where a millisecond can determine whether a miner wins a block or loses to a competitor.” Foundry and AntPool currently dominate the sector, controlling nearly 30% and 17.7% of the global mining pool hashrate, respectively, according to data from Hashrate Index.
The introduction of a standardized mining pool protocol presents a significant step towards decentralizing the industry, which has exhibited increasing centralization in recent years. This open standard would also provide miners with greater flexibility in selecting block templates, contributing to a more dynamic mining environment.
On another front, Bitcoin mining is facing additional challenges as the difficulty level for adding new blocks to the blockchain is projected to rise again in the next adjustment. Scheduled for May 15, 2026, the upcoming adjustment is expected to increase the mining difficulty from 132.47 T to 135.64 T, as reported by CoinWarz. This trend reflects a broader increase in mining difficulty over time, compounding the urgent pressures on miners dealing with soaring energy costs and a competitive landscape.
According to asset manager CoinShares, up to 20% of Bitcoin miners currently find themselves operating at a loss under prevailing market conditions. The metric known as hashprice, which gauges miner profitability, has recently hit levels between $36 and $38 per Petahash-second per day—hovering near breakeven for many miners. This precarious situation underscores the growing challenges facing the Bitcoin mining community, amidst rising operational costs and increasing competition.
