Etherum.

Ethereum is the community-run technology powering the cryptocurrency, ether (ETH) and thousands of decentralized applications. Explore Ethereum ...Ethereum: a different goal than Bitcoin.

They are both valuable but have very different uses," Adelman says.

"Ethereum is infrastructure. It is a blockchain that is in the early days but has the potential to revolutionize finance and technology."

Ether can be used to buy and sell goods and services, like Bitcoin.

It's also seen rapid gains in price over recent years, making it a de-facto speculative investment.

But what's unique about Ethereum is that users can build applications that “run” on the blockchain like software “runs” on a computer.