One example is, if you purchase a copyright, the blockchain for that digital asset will forever tell you about given that the owner Unless of course you initiate a offer transaction. No you can return and alter that proof of ownership. То?г?й?е е?ек?ивн??е, вико?и??ов???и на?? ав?ома?изован? ???а?ег?? ??легко, ?видко https://shirino307yfl2.onzeblog.com/profile