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Wednesday, September 23, 2015

Bitcoin and Cryptocurrency Technologies - Quiz 5 Problem 1

Which of the following are true about Bitcoin miners?

Bitcoin miners can more efficiently mine for blocks by specifically targeting parts of the nonce search space that have more puzzle solutionsWrong
The target hash has become so small that the block header nonce alone isnt generally large enough to allow miners so search enough of the hash output space to find a valid blockCorrect
The mining difficulty is recomputed roughly every 2 weeks to keep the proof-of-work puzzle difficultCorrect
Over a 2 week period, the average time to mine a block is always 10 minutesWrong

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