digital coin is a type of digital currency. A digital asset created with the intention of being used in exchange for goods and services. Cryptocurrencies can be used as a store of value, unit of account, and medium of exchange. Cryptocurrencies are different from traditional currencies that allow exchange outside of systems controlled by central banks and financial systems (see Digital and Cryptocurrency Exchange Platforms).These digital assets are protected in a reduced form.
A book is called a block or block. The first digital currency was Bitcoin (BTC), announced in a white paper by its creator, Satoshi Nakamoto. It was launched in 2009. Since then, it has served as a standard digital asset (standard crypto asset). Trading digital currency without buying or receiving it directly can be done through a financial intermediary (a cryptocurrency broker).