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Redirected from: double spend problem

Definition: double spending


Spending an amount of currency twice in a system of digital cash, whether in a fiat system such as the Euro or a cryptocurrency such as Bitcoin. Digital transactions can be falsified if there is no protective mechanism in place. With regard to crypto, double spending was addressed in Satoshi Nakamoto's initial abstract describing Bitcoin (for the full text, read the end of the Bitcoin definition (see Bitcoin).