Bitcoin began in 2009 with Satoshi Nakamoto. It employs cryptography to minimize potential hacks. Satoshi’s solution for the double spending problem was revolutionary. It uses Proof of Work (PoW) to secure blockchain ledgers against duplication and cryptocurrency forging. For example, Bitcoin leverages miner nodes that compete to solve complicated mathematical problems. Miners who find new blocks are rewarded with bitcoins. This is also how the supply of bitcoins are increased.
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