- Bitcoin’s hashrate hit 1 zettahash for the first time, marking historic mining power growth.
- Mining difficulty surged to 136 trillion, reflecting increased computing strength securing the Bitcoin network.
Bitcoin hashrate has reached 1 zettahash per second (ZH/s)—the very first time ever. This means that one sextillion calculations are taken every second, confirming that the network is well protected.
In the early years, and perhaps for some time later, the hashrates stayed far below the levels corresponding to grand-scale mining. Then came growth in 2017-2018, after that, crossing above 50 exahashes per second (EH/s). Around 2020 came the passing of 100 EH/s and shortly thereafter 250 EH/s.
Since 2023, the increase has accelerated. The chart shows hashrate pushing past 400 EH/s, then 600 EH/s, before reaching the 1 ZH/s mark in 2025. Analyst Vivek Sen wrote,
BREAKING: #BITCOIN HASHRATE JUST HIT 1 ZETAHASH FOR THE FIRST TIME IN HISTORY
WHAT A TIME TO BE ALIVE!!! pic.twitter.com/Ea78FctzuS
— Vivek Sen (@Vivek4real_) September 11, 2025
Mining Difficulty at Record Levels
Alongside the rise in hashrate, Bitcoin’s mining difficulty is also at its highest point, now close to 136 trillion (T). Difficulty adjusts every two weeks to keep block production at roughly ten minutes.
An increase was recorded during February, April, May, August, and September of 2025. The last difficulty adjustment, however, saw the difficulty reach its all-time high, a testament to the sheer scale of computing power added to the network this year.
Price action, however, did not have a steady rise. Nearing $120,000 in the early part of 2025, the BTC price fell below $100,000 in March. With recovery coming in May and June, prices went back above $120,000. It was, however, a sideways move for summers: price fluctuated between $110,000 and $120,000 as difficulty kept increasing.
Interestingly, this divergence shows that miners have stayed active despite price swings, likely supported by efficiency gains in hardware and expectations for long-term growth.
At press time, Bitcoin price traded at $115,447 with daily turnover above $48 billion. The price is down 1% in 24 hours but up 3% in the last week.
Key Levels on the Chart
Bitcoin recently bounced from the $107,000–$108,000 support zone and re-entered its higher range. Analyst Lennaert Snyder identified $112,500 as a critical level, noting:
The $112,500 level to gain automatically flips into a support zone for confirmation longs.
If support holds for Bitcoin, the upcoming resistance will reside around $115,400. Should those levels be broken, the way is cleared toward $116,900 and maybe up to the supply zone in between $118,500 and $119,000. Snyder added,
A daily candle close above $112,500 would be a strong sign for Bitcoin.
