Bitcoin’s Daily Implied Hash Rate Reaches Record 79.75 EH/s

Bitcoin’s estimated hash rate reached a record daily reading of 79.75 exahashes per second on July 20, 2019, according to historical network data maintained by Coin Metrics and Blockchain.com. The milestone indicated that more computing power than ever was competing to extend Bitcoin’s proof-of-work ledger, even though the precise amount of active mining equipment could not be directly observed.

The record mattered because hash rate was one of the clearest available measures of Bitcoin’s industrial recovery after the 2018 market contraction. It also showed why a single daily estimate required caution: miners produced substantially more blocks than Bitcoin’s long-run target on July 20, mechanically lifting the implied rate.

What the network record shows

Coin Metrics’ UTC-dated Bitcoin row for July 20 records an estimated hash rate of 79,752,983.72 terahashes per second, equivalent to 79.75298 EH/s. The same row records 177 blocks and 2,212.5 BTC of new issuance. With the block subsidy then fixed at 12.5 BTC, the issuance figure corresponds exactly to those 177 blocks before transaction fees.

Bitcoin targets approximately 144 blocks per 24 hours, or one block every ten minutes on average. Finding 177 did not mean miners had installed enough machines on July 20 to increase physical capacity by the same proportion. Block discovery is probabilistic, and an unusually productive day raises estimates calculated from observed blocks and the prevailing difficulty.

Blockchain.com defines its displayed hash rate as an estimate of the number of terahashes performed per second during the preceding 24 hours. Its methodology explicitly warns that raw daily readings can rise or fall because of random block discovery even when underlying computing power is unchanged. The provider recommends a seven-day average as a better representation of the network’s underlying power.

A record with a noisy measurement window

A Coinburn calculation using Coin Metrics’ seven daily HashRate observations from July 14 through July 20 produces an arithmetic mean of approximately 64.50 EH/s. That smoothed result remained historically elevated but sat well below the 79.75 EH/s one-day peak.

The distinction is important. The verified fact is that July 20 generated the highest daily implied-hash-rate observation in the cited historical series through that date. It is an interpretation—not a directly measured fact—that miners physically operated 79.75 EH/s continuously throughout the day.

Hash rate also cannot describe every dimension of network security. More aggregate computation generally makes rewriting proof-of-work history more expensive, but geographic concentration, mining-pool coordination, hardware availability and energy costs also affect the practical threat model. The record therefore demonstrated greater aggregate work, not proof that Bitcoin had become invulnerable or decentralized in every respect.

Mining strength and market context

Coin Metrics recorded a July 20 PriceUSD observation of $10,862.65. That figure is the provider’s daily reference observation rather than a universal exchange close; cryptocurrency venues traded continuously and could report different prices for the same calendar date.

The coexistence of an elevated network estimate and a bitcoin price still below its late-June 2019 highs suggested that mining investment and deployment did not move in lockstep with a single day’s market quotation. Specialized hardware procurement, delivery and energization occurred over longer windows. The record was consequently more useful as evidence of a broader mining expansion than as a short-term trading signal.

Later contemporaneous confirmation

Reporting published on July 22, 2019, identified the July 20 Blockchain.com observation as a fresh record and noted that the raw estimate subsequently retreated. That quick reversal was consistent with the data provider’s warning that individual 24-hour readings were volatile.