WHAT DOES COPYRIGHT MEAN?

??дк?ий?е дл? ?ебе новий ??вен? ?андом? й ?озблок?й?е необмежен? можливо??? дл? ?ана??вBlockchains are special in that, as soon as a transaction has been recorded and confirmed, it could?�t be changed. The ledger only permits 1-way details modification.Protection starts with understanding how