A blockchain can be a distributed general public ledger ??or on the web digital databases ??that contains a document of many of the transactions on the System. ??п?й?е ?а п?одавай?е на ?по?овом? ?инк? за допомого? ?оз?и?ени? ?н????мен??в Using this method, you are able to make sure that the information https://saeedl296wci0.wikisona.com/user