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It is "an open up, dispersed ledger which will report transactions concerning two events effectively and in a verifiable and long term way".[54] For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering into a protocol for validating new blocks. After recorded, the http://www.bsaa.edu.ru/bitrix/rk.php?goto=https://www.3sktv.news/video/category/kardeslerim/

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