how long does it take for an mining machine to exhaust 2^32 in minutes and what is the actual speed of mining machines?
Mining is usually about taking the double sha. most if not all mining machines such as bitminer's machines usually give some indications for example 1TH/sec per second. Do they count the double sha as one hash operation or does it mean that they count the double sha as two operations.
Wait, even more interestingly, 1 TH/sec means literally 1 terahash per second. Meaning that we can do 1 trillion operations per second ! Does that not mean that I could exhaust a given nonce in less than a second ?! given that we are dealing with only ~4 billion values ? Assuming that within the ~4 billion values there is one that validates the block, we find a solution in less than a second ! So it aint making sense to me that it takes so long and is so difficult to be a successful solo miner.
https://ift.tt/2K5MXfy
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