ABOUT COPYRIGHT

??дк?ий?е дл? ?ебе новий ??вен? ?андом? й ?озблок?й?е необмежен? можливо??? дл? ?ана??вBlockchains are one of a kind in that, once a transaction has long been recorded and confirmed, it may?�t be altered. The ledger only permits one particular-way data modification.copyright exchanges are digi