A blockchain is usually a dispersed public ledger ??or on the net digital databases ??that contains a report of each of the transactions with a platform. ??п?й?е ?а п?одавай?е на ?по?овом? ?инк? за допомого? ?оз?и?ени? ?н????мен??в copyright exchanges are digital marketplaces that enable buyers to acquire and market cryptocurrencies https://davidv630hov5.ourcodeblog.com/profile