Bitcoin Network Hash Rate Approaches 2 Exahash Milestone as Industrial Mining Surges

The Bitcoin network is approaching a historic computational milestone as its total hash rate nears 2 exahashes per second in early November 2016, a threshold that underscores the rapid industrialization of cryptocurrency mining. The surge comes as Bitcoin trades near $740, its highest level in months, drawing fresh mining investment and pushing network difficulty to new heights.

TL;DR

• Bitcoin network hash rate is approaching 2 exahash per second, nearly doubling from earlier in the year
• Bitcoin price near $740 is driving increased mining profitability and hardware deployment
• AntMiner S9 has become the dominant ASIC unit, delivering unprecedented efficiency
• CoinMarketCap data shows BTC market cap at $11.8 billion with ETH trading at $10.75
• Cornell-led IC3 initiative receives $3M NSF grant to improve mining security and smart contract safety

Hash Rate Growth Accelerates

Throughout 2016, the Bitcoin network’s hash rate has climbed steadily, reflecting both rising Bitcoin prices and the deployment of increasingly powerful mining hardware. By early November, the network’s total computational power is approaching 2 exahashes per second — roughly 2 million terahashes — a figure that would have seemed outlandish just 18 months ago when the hash rate hovered below 400 petahashes.

The growth has been driven primarily by the widespread adoption of next-generation ASIC miners, particularly Bitmain’s AntMiner S9, which offers significantly higher hash rates per unit of electricity consumed compared to older models. As Bitcoin’s price has recovered from its mid-year lows, mining economics have improved dramatically, incentivizing operators to deploy more machines and bring new facilities online.

Mining Economics at Current Prices

With Bitcoin trading at approximately $740 according to CoinMarketCap data from November 2, 2016, mining profitability remains strong for operators with access to efficient hardware and affordable electricity. The total Bitcoin market capitalization stands at $11.8 billion, with a 24-hour trading volume exceeding $84 million. Ethereum, the second-largest cryptocurrency by market cap at $920 million, trades at $10.75, reflecting a broader crypto market that has gained momentum in recent weeks.

For miners, the economic calculus is straightforward: higher Bitcoin prices mean greater revenue per block mined, which in turn justifies investment in additional hashing power. The network difficulty adjusts every 2,016 blocks to maintain the target block time of approximately 10 minutes, but with hash rate growing faster than difficulty can adjust in the short term, miners are enjoying a window of above-average profitability.

The Security Research Response

As the mining ecosystem scales, academic researchers are working to address the security implications of increasingly complex cryptocurrency systems. The Initiative for CryptoCurrency and Contracts (IC3), a collaboration involving Cornell University, Cornell Tech, UC Berkeley, the University of Illinois at Urbana-Champaign, and the Technion in Israel, has received a $3 million, three-year grant from the National Science Foundation to develop safer cryptocurrency infrastructure.

IC3 co-director Emin Gün Sirer, an associate professor of computer science at Cornell, has highlighted the urgent need for better security in the wake of several high-profile cryptocurrency thefts. Notable incidents include the DAO hack in summer 2016, where an attacker exploited a vulnerability in a decentralized venture capital fund built on Ethereum, stealing 36 million ether worth over $50 million. Separately, nearly four dozen Bitcoin operations have collectively lost the equivalent of more than $750 million to theft and security breaches in recent years.

“The largest physical bank heist was the Dunbar armored truck robbery in 1997, and it was only for $28 million in today’s dollars,” Sirer noted. “Stealing money from Bitcoin banks is where the action is today.”

Smart Contracts and Blockchain Safety

A major focus of the IC3 initiative is developing a programming language that makes it easier to write safe and reliable smart contracts — the self-executing code that governs transactions and business logic on blockchain networks. The DAO hack exposed the risks inherent in poorly audited smart contracts, and the research community recognizes that broader cryptocurrency adoption depends on resolving these vulnerabilities.

The team also aims to improve the fundamental workings of blockchains, the distributed ledgers that record all cryptocurrency transactions. As the hash rate climbs and mining becomes more centralized around large-scale operations, the resilience and security of the underlying blockchain infrastructure become ever more critical.

Global Mining Expansion

The hash rate surge is not limited to any single geography. While China remains the dominant force in Bitcoin mining — with companies like Bitmain expanding aggressively into regions like Xinjiang for cheap power and favorable climates — mining operations are also growing in Iceland, Georgia, the United States, and other jurisdictions with competitive electricity rates. The geographic diversification, while still skewed toward China, is a positive development for network resilience.

As Bitcoin approaches the $750 mark, the mining industry finds itself at an inflection point. The combination of rising prices, more efficient hardware, and growing institutional interest is transforming Bitcoin mining from a niche technical experiment into a significant global industry. The question is no longer whether industrial-scale mining is viable, but how the ecosystem will balance efficiency gains against the decentralization principles that gave Bitcoin its start.

Why This Matters

The approaching 2-exahash milestone represents more than just a number — it signals Bitcoin’s maturation from an experimental technology into a computationally fortified financial network. Every additional petahash makes the network harder to attack, but also harder for individuals to participate in mining. The parallel push from academic researchers to improve smart contract security reflects a growing recognition that technical robustness is essential for mainstream adoption. Together, these developments define the tension at the heart of cryptocurrency in late 2016: scaling up while staying true to its decentralized roots.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency mining involves significant technical complexity, financial risk, and energy costs. Readers should conduct thorough research before making any decisions related to mining hardware or cryptocurrency investments.