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?лок?ейн ?оби?? благод?йн???? б?л?? п?озо?о?, е?ек?ивно? ? в?д??еж?вано?Blockchains are exclusive in that, the moment a transaction has become recorded and confirmed, it can?�t be improved. The ledger only permits a single-way knowledge modification.The whole quantity of cash that could at any time be create