For instance, if you purchase a copyright, the blockchain for that digital asset will eternally tell you about as the proprietor Unless of course you initiate a sell transaction. No you can return and change that proof of ownership. ??п?й?е ?а п?одавай?е на ?по?овом? ?инк? за допомого? ?оз?и?ени? ?н????мен??в https://mahendrav630flq3.tokka-blog.com/profile