Dash was originally known under the names Darkcoin and XCoin. As with other cryptocurrencies, it uses an open source format, and builds on the Bitcoin offering by including other features, too. These include InstantSend, a method of completing a transaction instantly.
The system is fully autonomous and it is estimated there will be no more than 19 million Dash coins at most. The currency was introduced in 2014, and there will be a decreasing number of coins created each year it is in use.
