As an example, if you buy a copyright, the blockchain for that electronic asset will eternally explain to you given that the proprietor unless you initiate a provide transaction. No you can go back and alter that proof of possession. ??дк?ий?е дл? ?ебе ?а о??имай?е до???п до зап??к? нови? https://stephenthtdo.idblogz.com/30413777/detailed-notes-on-copyright