By way of example, if you purchase a copyright, the blockchain for that electronic asset will permanently tell you about since the operator Unless of course you initiate a offer transaction. No one can go back and change that proof of possession. ?лок?ейн ?оби?? благод?йн???? б?л?? п?озо?о?, е?ек?ивно? ? https://binance13491.bloggip.com/29786975/the-smart-trick-of-copyright-that-nobody-is-discussing