also creates an incentive for more people to mine. This problem can be simplified for explanation purposes: The hash of a block must start with a certain number of zeros. Bitcoin mining is so called because it resembles the mining of other commodities: it requires exertion and it slowly makes new currency available at a rate that resembles the rate at which commodities like gold are mined from the ground. This proof of work is verified by other Bitcoin nodes each time they receive a block. The primary purpose of mining is to allow Bitcoin nodes to reach a secure, tamper-resistant consensus.
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