'Ether' is the digital currency used on the Ethereum network. Like Bitcoin, Ethereum works via a public blockchain network; while Bitcoin is used to track ownership of currency, the Ethereum blockchain focuses on running the programming code of any decentralized application.
These applications can include security programs, voting systems and methods of payment. Like bitcoin, Ethereum operates outside the mandate of central authorities such as banks and governments.
The idea behind Ethereum was created by Vitalik Buterin. He launched the first version of the platform in 2015, with the help of several co-founders. Since then it has become the second largest cryptocurrency and has helped prompt an increase of new rivals to bitcoin.