Bitcoin Network Hash Rate Exceeds 100 Exahashes Per Second
Bitcoin's network hash rate surpasses 100 exahashes per second for first time, representing major security milestone and demonstrating continued mining investment.
On September 11, 2019, Bitcoin's network hash rate exceeded 100 exahashes per second (EH/s) for the first time, marking a major security milestone that demonstrated the enormous computational power securing the Bitcoin network. The hash rate achievement represented over a hundredfold increase from just five years earlier and showed that mining investment continued growing despite price volatility.
The 100 EH/s milestone meant that Bitcoin miners were collectively performing 100 quintillion (100,000,000,000,000,000,000) hash calculations per second in their efforts to find new blocks and secure the network. This massive computational power made Bitcoin extraordinarily expensive to attack—a 51% attack would require controlling hash power worth billions of dollars in hardware and electricity costs, making such attacks economically irrational for any potential attacker.
The hash rate growth occurred despite Bitcoin's price remaining far below its late-2017 peak, demonstrating that mining operations had achieved efficiency improvements enabling profitability at lower Bitcoin prices. The increased hash rate also reflected continued investment in mining hardware, facility infrastructure, and electricity procurement, suggesting that miners maintained long-term conviction in Bitcoin's value proposition.
For Bitcoin's security and decentralization, the massive hash rate provided robust protection against attacks while the geographic distribution of mining operations across multiple continents created resilience against localized disruptions. However, the hash rate concentration in specific regions, particularly China, created concerns about centralization risks if governments could coordinate actions affecting large percentages of mining capacity.The 100 EH/s milestone nevertheless represented remarkable achievement in securing decentralized network, demonstrating that proof-of-work consensus could scale to provide security for hundreds of billions of dollars in value.