Hashrate Tops 1ZH/s as Pools Embrace Stratum V2 As of Wednesday, May , 2026, Bitcoin hovers around $81,, with the network hashrate climbing above ZH/s for the first time since early peaks. This resurgence comes amid steady block production and rising miner revenues, bolstered by increased transaction fees. The past week's data from Hashrate Index shows a .7% jump in the seven-day simple moving average to , EH/s, reflecting miners' resilience in a post-halving landscape. Industry developments are accelerating, with seven major mining pools—representing nearly 75% of global hashrate—joining the Stratum V2 working group. This move promises greater miner autonomy in block construction, addressing long-standing centralization concerns. Meanwhile, Braiins' acquisition of CFTC-registered CAMMS Capital on May marks a pivotal step toward commodity-style hedging for hashrate and energy assets. These trends underscore Bitcoin mining's maturation, where technological upgrades and financial innovations are key to navigating volatility. With network difficulty poised for an upward adjustment, efficient operations remain paramount. ## Bitcoin Network Hashrate Surges Past ZH/s The Bitcoin network hashrate reached approximately , EH/s as of May , equivalent to over ZH/s, according to pool distribution data. This marks a recovery from earlier 2026 dips below ZH/s, driven by miners deploying high-efficiency ASICs. The seven-day simple moving average rose .7% week-over-week, hitting , EH/s, while the 30-day average stands at EH/s. Despite Bitcoin's year-to-date price decline of .5%, miners continue to expand capacity, supported by hashprices around $39 per PH/s per day. This metric, up .3% last week, highlights improving economics for operations with efficiencies under J/TH. Transaction fees also contributed, with miners capturing BTC—equivalent to $1. million—over the period, or .69% of block rewards. Sustained hashrate growth enhances network security, making Bitcoin more resistant to attacks. However, it also intensifies competition ahead of the next epoch. For those eyeing ASIC miners, this environment favors top-tier efficiency to stay competitive. ## Difficulty Adjustment Looms on May Bitcoin's mining difficulty currently sits at . T, following a -2.30% drop on May . The next adjustment, expected Friday, May , at around 2: PM UTC, projects a .63% to .78% increase to approximately . T. This follows blocks being mined faster than the 10-minute target, with recent averages around minutes seconds. Such upward shifts typically pressure less efficient miners, potentially leading to hashrate corrections if prices stagnate. Yet, the mechanism ensures consistent block times, bolstering predictability. Historical patterns in 2026 show multiple downward adjustments earlier, providing relief during lower hashprice periods. Miners are preparing by optimizing fleets and securing low-cost power. Tools like the mining calculator help assess impacts from these changes on daily output. ## Mining Pools Unite Behind Stratum V2 In a landmark push for decentralization, pools controlling 75% of Bitcoin's hashrate—including Foundry USA, AntPool, F2Pool, SpiderPool, MARA Pool, ViaBTC, and others—joined the Stratum V2 working group this week. Announced around May , this protocol shifts block template construction from pool operators to individual miners, reducing centralization risks. Stratum V2 introduces transaction selection autonomy, potentially improving censorship resistance and miner revenues through better fee capture. Early adopters cite up to .4% profitability gains via optimized templates. This upgrade builds on Stratum V1's limitations, where pools dictated block contents. The coalition's dominance amplifies impact, signaling broad industry buy-in. Discussions on X highlight enthusiasm for enhanced security without altering Bitcoin's core protocol. ## Foundry Leads Evolving Pool Market Share Foundry USA commands 32% of the network hashrate at EH/s, followed by AntPool at .9% (149 EH/s) and F2Pool at .9% (102 EH/s). SpiderPool holds 10%, ViaBTC .5%, and MARA Pool .5%, per latest distributions totaling , EH/s. This concentration persists, but Stratum V2 mitigates risks by empowering miners directly. Foundry's leadership reflects strong U.S.-based operations, while AntPool maintains global reach. Smaller pools like Luxor (3.3%) and Binance Pool (2%) fill niches with innovative features. Pool choice influences payout stability and decentralization contributions. Larger operators often offer low fees and robust infrastructure, attracting enterprise-scale deployments. ## Braiins Acquisition Targets Mining Hedging Bitcoin mining software leader Braiins acquired CAMMS Capital, a CFTC-registered commodity manager, on May . The deal merges years of mining expertise with traditional commodity hedging tools, treating hashrate and energy as digital commodities akin to oil or grain. Braiins aims to develop tailored risk management for volatile inputs like power costs and BTC prices. This first-of-its-kind move by a Bitcoin-native firm bridges TradFi and crypto, potentially stabilizing operations amid hashprice lows of $27-39/PH/s/day. Such innovations could attract institutional capital, fostering sustainable growth. Early signals point to futures and options for miners, reducing exposure swings. ## Energy Efficiency and Industry Shifts Hashprice pressures persist, with only sub-20 J/TH rigs viable at $95/MWh power costs. Many operations pivot to AI compute using existing infrastructure, leveraging cheap energy and cooling. Bitcoin mining stocks rose .3% last week, buoyed by revenues nearing $256 million. Efficiency remains king, with hydro-cooled lottery miners gaining traction for solo efforts. Global energy dynamics favor stranded renewables, aligning mining with sustainability goals. Forward hashprices average $36/PH/s over six months, urging upgrades. Resilient hashrate underscores Bitcoin's appeal as a secure, profitable endeavor. ## Key Takeaways - Bitcoin hashrate exceeds ZH/s, enhancing security amid $81K BTC price. - Difficulty rises ~4% on May , testing inefficient operations. - 75% hashrate backs Stratum V2, boosting miner control and decentralization. - Foundry leads pools at 32%; Stratum V2 addresses concentration. - Braiins-CAMMS deal pioneers hedging for hashrate and energy. - Efficiency under J/TH critical as hashprice hovers ~$39/PH/s/day.