Satishi Nakamoto came up with mining via hashing. Due to hashfunctions unique properties (1.collision resistance 2.preimage resistance 3.secind preimage resistance) the security of the Blockchain can be derived from the raw computing power. This is what we call ”proof of work”
мир переходит в фазу сначала делай потом получай.
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Play of words translate really bad with software translators
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Op said "the world is shifting to a phase of first do then receive"