By way of example, if you purchase a copyright, the blockchain for that electronic asset will forever provide you with as being the operator unless you initiate a promote 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://cristianfxpdq.newsbloger.com/30446220/detailed-notes-on-copyright