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Total Hash Rate (TH/s)The estimated number of terahashes per second the bitcoin network is performing in the last 24 hours.
More about this chart
Explanation
Mining hashrate is a key security metric. The more hashing (computing) power in the network, the greater its security and its overall resistance to attack. Although Bitcoin’s exact hashing power is unknown, it is possible to estimate it from the number of blocks being mined and the current block difficulty.
Notes
Daily numbers (raw values) may periodically rise or drop as a result of the randomness of block discovery : even with a hashing power constant, the number of blocks mined can vary in day. Our analysts have found that looking at a 7 day average is a better representation of the underlying power.
Methodology
The hashing power is estimated from the number of blocks being mined in the last 24h and the current block difficulty. More specifically, given the average time T between mined blocks and a difficulty D, the estimated hash rate per second H is given by the formula H = 2 32 D / T

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