Cryptocurrencies
Cryptocurrencies are digital or virtual currencies that use cryptography (the practice of secure communication) to enable secure and decentralized transactions. Unlike traditional currencies, cryptocurrencies are not backed by any government or financial institution, and their value is determined by the market demand and supply.
Cryptocurrencies use a decentralized network known as a blockchain, which is a distributed ledger technology that records transactions and ensures their security and transparency. Transactions on the blockchain are verified by a network of users known as nodes, who are incentivized through rewards to maintain the network.