“…all attempts to make changes to the ledger without incurring a cost are impossible, and any attempt to falsify the ledger by someone who has done the work will be rejected by the network, resulting in an immediate loss for the counterfeiter in the form of wasted energy. This incentive mechanism is the foundation of Bitcoin's security.” nostr:note16nt057fy0ullx3s6mffeprwarsyeuvqja29fv6lat9uzm29yjltqwwrda8