?ок?а??й?е ?во? знанн? й о??им?й?е о??анн? ?н?о?ма??? A blockchain is usually a distributed community ledger ??or online digital database ??which contains a document of many of the transactions with a System. To sell copyright, first produce an account and purchase or deposit copyright resources you would like to market. https://tonyy221vmd2.blogvivi.com/profile