: if you alter a block, it changes the fingerprint. And given that that fingerprint is included in another block, the subsequent block is changed way too. A blockchain is usually a distributed community ledger ??or on line digital database ??which contains a document of each of the transactions https://remingtonmgzqh.jts-blog.com/29253612/the-fact-about-copyright-that-no-one-is-suggesting