Why can't Bitcoin's history be rewritten? Because every block carries the fingerprint of the block before it. Change anything in an old block, even one number, and its fingerprint changes, which breaks the next block, and the next, all the way to today. The whole chain would visibly snap. That's why, in 17 years, not one block has ever been rewritten. A record that can't be quietly edited, built block by block. Be part of the next one. Download the Bitcoinist App. π