A blockchain is really a dispersed public ledger ??or on the net digital databases ??which contains a file of all the transactions on the System. Some cryptocurrencies share a blockchain, though other cryptocurrencies operate on their own individual blockchains. Щоб по?а?и ?о?г?вл?, ко?и???ва?ам по???бно за?е?????ва?и ака?н?, п?ой?и ве?и??ка??? о?оби, https://emilyu876dsg2.celticwiki.com/user