Skip to content
Featured image for Bitcoin Hashrate Tops 1ZH/s as Pools Adopt Stratum V2

Bitcoin Hashrate Tops 1ZH/s as Pools Adopt Stratum V2

By Brett C.
5 min read
89 views
miningbitcoinhashratedecentralizationpools

Bitcoin's network hashrate has broken past ZH/s as of Thursday, May , 2026, signaling robust miner participation amid BTC's surge to $81,. Leading pools controlling 75% of hashrate embrace Stratum V2, empowering individual miners with block construct

As of Thursday, May , 2026, the Bitcoin network's hashrate has pushed beyond ZH/s (equivalent to over , EH/s), reflecting a robust resurgence in mining activity as Bitcoin's price climbs to $81, with a .5% daily gain. 52 62 This surge comes on the heels of a .

7% weekly increase, with the seven-day simple moving average (SMA) reaching , EH/s and the 30-day SMA at EH/s as reported just days ago. 62 Miners are capitalizing on favorable market conditions, bolstering network security at a critical juncture. In a landmark move for decentralization, seven dominant mining pools—Foundry USA (34.

2% hashrate), AntPool (14.2%), F2Pool (11.3%), SpiderPool (10.

5%), MARA Pool (4.7%), Block Inc., and DMND—have joined the Stratum V2 working group, collectively commanding nearly 75% of the global hashrate.

65 Stratum V2, developed since 2022 by Braiins and Spiral, allows individual miners to construct their own block templates and select transactions, wresting control from pool operators. 65 This shift addresses longstanding concerns over centralized transaction censorship risks, marking a pivotal evolution in mining protocol technology without altering hashrate distribution. The network stands on the brink of its next difficulty adjustment, estimated for May , 2026, at around 4: PM UTC, where difficulty is projected to rise .

92% from the current .47T to .33T.

64 This follows a -2.3% dip on May , stabilizing the level since then amid fluctuating hashrate. 62 Such adjustments ensure the predictable 10-minute block time, but they intensify pressure on operations, particularly as energy costs and hardware efficiency play larger roles post-halving.

Hashrate Surge Signals Miner Confidence Bitcoin's hashrate trajectory underscores

growing miner confidence, with recent data showing a climb from EH/s in early May to over ZH/s today. 52 This momentum aligns with Bitcoin's market cap hitting $1.63T and positive institutional inflows, encouraging more hashrate online despite post-halving challenges.

51 Public companies like HIVE Digital Technologies highlight their contributions, securing over 2% of network hashrate while producing BTC directly. 51 For operators eyeing expansion, modern ASIC miners offer the edge in efficiency needed to thrive in this high-hashrate environment. The 30-day SMA's steady rise indicates sustained participation, not just short-term spikes, pointing to long-term network resilience.

However, whispers on X suggest potential future drops if more public miners redirect to AI. 61 This surge isn't uniform; solo and lottery mining enthusiasts report increasing block wins, with discussions around Noderunners and low-hashrate devices finding luck. 53 Events like the Foundation's Telehash, where miners donate hashrate for open-source development, further energize the community.

Stratum V2 Ushers in Miner Empowerment The adoption of

Stratum V2 by 75% of hashrate represents a quiet revolution in pool dynamics, enabling miners to dictate block contents independently. 65 Previously, pool operators held sway over transaction inclusion, raising centralization flags; now, miners regain autonomy, fostering a more robust, censorship-resistant network. Pools like Foundry and AntPool, long-time leaders, are at the forefront, with Foundry alone at .

2% dominance per recent rankings. 0 This protocol upgrade, announced via the Stratum working group blog last week, builds on years of development without disrupting current operations. It aligns with broader efforts to decentralize block construction, a key pillar of Bitcoin's ethos.

For those exploring alternatives to traditional pools, lottery miners provide solo-like thrills with shared risk, complementing these advancements. As Stratum V2 rolls out, expect finer-grained competition among pools vying for hashrate through superior features and lower fees.

Impending Difficulty Adjustment Looms With just hours until the

May adjustment, projections peg a +3.22% hike, mirroring relentless hashrate growth. 52 Current difficulty at .

47T has held since May , but sustained high hashrate demands recalibration to maintain block intervals. Miners must optimize now, as even modest increases compound over epochs. ViaBTC notes miners 'accelerating into the next epoch,' questioning if more hashrate is inbound or caution prevails.

52 Tools like the mining calculator help assess operational tweaks. Historically, such rises follow price rallies, but energy volatility remains a wildcard. The adjustment caps a period of relative stability post a prior dip, allowing marginal operations breathing room.

Yet, as BTC rallies, efficient setups shine, underscoring the premium on cutting-edge technology.

AI Pivot Reshapes Mining Landscape While hashrate climbs, public

miners like MARA are divesting BTC holdings—$1.5B in Q1—to fund AI infrastructure, boosting liquidity and debt reduction. 63 MARA's energized hashrate grew 33% YoY to .

EH/s, mining , BTC, yet eyes redirecting 90% capacity to AI/HPC. This trend, echoed by Hut 8's data center leases, sees AI potentially dominating 70% of public miner revenue by year-end. Critics warn of hashrate drops as megawatts shift, potentially benefiting steadfast BTC miners.

60 Bitcoin remains the foundation, but diversified revenue appeals amid post-halving economics. Hosted mining solutions offer stability for those avoiding capex shifts. Colombia emerges as a renewable hub, leveraging surplus energy for mining.

20 Globally, miners balance BTC loyalty with opportunistic pivots, sustaining network growth.

Mining Pool Dominance in Focus Foundry USA leads with

1% share, followed by AntPool (18.3%), ViaBTC (13%), per 2026 rankings. 0 Stratum V2 unites top players, but competition rages via payout models like FPPS, PPLNS, and hybrids.

Retail-friendly pools like ViaBTC attract with intuitive interfaces. Dominance raises centralization debates, yet V2 mitigates risks. Lottery and solo options gain traction, with reports of weekly blocks via modest hashrate.

53 Pool choice hinges on fees, reliability, and now protocol support. As hashrate concentrates yet decentralizes, innovation drives retention. Miners weigh scale against autonomy in this dynamic arena.

Key Takeaways - Bitcoin hashrate exceeding ZH/s fortifies security

amid $81K rally, with .7% weekly gains. - 75% hashrate pools adopting Stratum V2 empowers miners, enhancing decentralization. - Difficulty rises ~3% tomorrow, pressuring efficiency-focused operations. - AI pivots by firms like MARA signal diversification, but BTC mining endures. - Pool leaders like Foundry dominate, yet V2 and alternatives foster competition.

Frequently Asked Questions

What is Bitcoin's current hashrate trend as of May , 2026?

Hashrate has surged past ZH/s, up .7% weekly with 7-day SMA at , EH/s.

How does Stratum V2 benefit miners?

It lets individual miners select transactions for blocks, reducing pool operator control and boosting decentralization.

When is the next Bitcoin difficulty adjustment?

Estimated May , 2026, with a projected .92% increase to .33T.

Topic: Hashrate surpassing 1ZH/s, 75% pools join Stratum V2, upcoming difficulty adjustment on May

Brett C.

Senior Mining & Markets Analyst

Brett C. leads editorial coverage of Bitcoin mining, ASIC hardware, and cryptocurrency markets at Pickaxe. He tracks network difficulty, hashrate trends, and hardware efficiency to help operators and newcomers make sense of a fast-moving industry.