One example is, if you purchase a copyright, the blockchain for that digital asset will for good demonstrate since the owner Until you initiate a offer transaction. No you can go back and change that proof of possession. ??дк?ий?е дл? ?ебе новий ??вен? ?андом? й ?озблок?й?е необмежен? можливо??? дл? https://binance32976.csublogs.com/36301728/5-simple-statements-about-copyright-explained