Ethereum is the second largest digital currency after bitcoin. Until December 25, 2017, according to CoinMarketCap data, the value of ethereum reached its highest record of 850 US dollars or around Rp 11.4 million with a market capitalization of 82 billion US dollars. I predict ethereum will have the best long-term potential compared to other digital currencies, due to its versatility and smart contract. i think ethereum its very good project. and i think ethereum project is secure to using. so let's save ethereum because this very good project