For example, if you purchase a copyright, the blockchain for that electronic asset will for good show you as the owner Except you initiate a sell transaction. No you can go back and change that proof of possession. ??п?й?е ?а п?одавай?е на ?по?овом? ?инк? за допомого? ?оз?и?ени? ?н????мен??в , https://lucianot287bvn6.blog2freedom.com/profile