: if you change a block, it variations the fingerprint. And since that fingerprint is A part of the following block, another block is transformed also. So far, we've mentioned buying and selling and investing. These techniques usually require a large amount of your time, which not everyone has. https://josueohzoe.designertoblog.com/61054782/how-much-you-need-to-expect-you-ll-pay-for-a-good-copyright