One example is, if you buy a copyright, the blockchain for that digital asset will permanently tell you about because the operator Unless of course you initiate a offer transaction. No you can go back and change that evidence of possession. ?лок?ейн ?оби?? благод?йн???? б?л?? п?озо?о?, е?ек?ивно? ? в?д??еж?вано? https://danteepzwq.wssblogs.com/29790997/a-secret-weapon-for-copyright