Cryptocurrency

A type of digital or virtual money that exists solely in electronic form.  Encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank, which makes it nearly impossible to counterfeit or double-spend. Many cryptocurrencies are decentralized networks based on blockchain technology—a distributed ledger enforced by a disparate network of computers. A defining feature of cryptocurrencies is that they are generally not issued by any central authority, rendering them theoretically immune to government interference or manipulation. (Source: Investopedia)