A cryptocurrency, crypto-currency, crypto may be a digital asset designed to figure as a medium of exchange wherein individual coin ownership records are stored during a ledger existing during a sort of a computerized database using strong cryptography to secure transaction records, to regulate the creation of additional coins, and to verify the transfer of coin ownership. Cryptocurrency doesn't exist in physical form (like paper money), is usually not issued by a central authority. Cryptocurrencies typically use decentralized control against a financial institution's digital currency (CBDC).] When a cryptocurrency is minted or created before issuance or issued by one issuer, it's generally considered centralized. When implemented with decentralized control, each cryptocurrency works through distributed ledger technology, typically a blockchain which is a public financial transaction database. Bitcoin, first released as open-source software in 2009, is that the first decentralized cryptocurrency. Since the discharge of bitcoin, many other cryptocurrencies are created.