DigiByte (DGB) is an open-source cryptocurrency running on the DigiByte Blockchain, a decentralised international blockchain created in 2013. The DigiByte coin was developed in 2013 and released in January 2014. Although based on Bitcoin, adjustments in the code allow for improved functionality, including 15-second block time and improved security. As of July 2018 DigiByte has a total market cap of over US $500 million. It is the world's longest, fastest and most secure UTXO blockchain in existence.