## Bitcoin’s Historic Hashrate Milestone

The Bitcoin network has achieved an unprecedented milestone by surpassing a hashrate of 1 Zetahash per second (ZH/s) for the very first time in its 16-year journey, as reported by multiple blockchain data sources. This remarkable event underscores a significant evolution in the Bitcoin ecosystem, reflecting both technological advancements and the growing decentralized nature of the network.

On April 5, the hashrate peaked at an impressive 1.025 ZH/s, as indicated by data from mempool.space. Interestingly, BTC Frame had reported a similar spike at 1.02 ZH/s one day prior, suggesting a consistent upward trend. Data from Coinwarz offers even more detail, showing Bitcoin’s hashrate reaching as high as 1.1 ZH/s on April 4 at block height 890,915. However, it’s worth noting that these figures can sometimes vary, as the data suggests that Bitcoin first crossed the 1 ZH/s mark on March 24.

*Source: BTC Frame*
Bitcoin’s hashrate has fallen back below 0.95 ZH/s on April 7 since reaching 1 ZH/s.

## Understanding Discrepancies in Hashrate Calculations

Notably, the discrepancies observed in Bitcoin hashrate trackers can be attributed to the different methodologies employed in their calculations. Factors such as the measurement of block times, difficulty adjustments, and the selection of Bitcoin nodes and miner pools all impact the final figures. Bitcoin cypherpunk Jameson Lopp highlighted that utilizing one “trailing block” instead of five can lead to a variation exceeding 0.04 ZH/s, further complicating the calculations.

Mitchell Askew, the head analyst at Blockware Solutions, echoed these sentiments by cautioning that simply examining the raw hashrate metric can be misleading due to random fluctuations in block times. He emphasized that Bitcoin’s 30-day moving average hashrate remains around the 0.845 ZH/s mark, providing a clearer perspective on the network’s performance over a longer time frame.

## A Remarkable Achievement in Network Security

Reaching the hashrate milestone of 1 ZH/s signifies a monumental achievement for the Bitcoin network, illustrating not only the massive computational power it harnesses but also its increasing decentralization. This growing power raises the bar for network security, making it significantly more resilient against possible threats, notably the risk of a 51% attack.

The ascent to 1 ZH/s, equivalent to 1,000 Exahashes per second, represents a staggering 1,000-fold increase since late January 2016, when Bitcoin first touched the 1 EH/s mark. It becomes particularly evident when comparing it with the second-largest proof-of-work cryptocurrency, Litecoin, which stands with a hashrate of only 2.49 Petahashes per second, making it around 40,000 times less computationally potent than Bitcoin.

*Source: Pierre Rochard*

Askew also noted that this dramatic increase in hashrate is coinciding with the rise of commercial Bitcoin mining firms that are increasingly competing to solve blocks. “Miners are doubling down by expanding their operations and integrating more efficient machines,” he revealed. However, he cautioned that less efficient miners may face tough challenges, particularly if Bitcoin’s (BTC) price does not rebound in the coming months.

As highlighted by the Hashrate Index, MARA Holdings has established itself as the leading Bitcoin miner with over 50 EH/s of computing power at its disposal. The majority of the network’s hashrate is being funneled into mining pools like Foundry USA Pool and AntPool. Additionally, there are at least 24 publicly listed Bitcoin companies that have set up mining operations as reported by CompaniesMarketCap.com. Other notable players in this space include Riot Platforms, Core Scientific, CleanSpark, Hut 8 Mining, and TeraWulf.

## The Intersection of Market Trends and Hashrate Increase

Interestingly, this remarkable surge in Bitcoin’s hashrate comes amid a significant market downturn. As Bitcoin (BTC) has experienced an approximately 10% drop over a mere four days to $78,750, U.S. stock markets faced an unprecedented loss of an estimated $6.6 trillion on April 3 and 4 — marking the largest two-day loss in history.

Much of this market decline has been linked to U.S. President Donald Trump’s tariff plans, which have instigated widespread fears of an impending recession.

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