By way of example, if you purchase a copyright, the blockchain for that electronic asset will forever demonstrate given that the owner Unless of course you initiate a offer transaction. No you can return and alter that proof of ownership. ??дк?ий?е дл? ?ебе ?а о??имай?е до???п до зап??к? нови? https://codyiymzl.activablog.com/29397884/the-definitive-guide-to-copyright