Steem , which was founded on the Ethereum blockchain, is now seeking to expand to other cryptocurrencies. The latest addition, called Ripple , is a cross- currency exchange for virtual currencies , which makes it a natural fit for the blockchain . Blockchain technology also enables peer -to-peer transactions, meaning that users no longer need to rely on banks or trusted third parties to process payments. Ripple allows users to instantly send and receive dollars and other digital currencies from