By way of example, if you purchase a copyright, the blockchain for that electronic asset will forever provide you with since the operator Unless of course you initiate a sell transaction. No you can go back and change that evidence of possession. On 28 Oct 2020, Forbes staff released https://edgarzunfw.blog2freedom.com/30009121/how-much-you-need-to-expect-you-ll-pay-for-a-good-copyright