Comparison of Proof-of-Work and Proof-of-Stake

Anyone who is close enough acquainted with Bitcoins, certainly understands that this is a revolutionary achievement, created by the legendary, looked far into the future a person or group of persons. At first glance, this is a revolutionary technology that allows you to send money without any central authority. You do not need someone who will issue your money, they are just there - something like gold.

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