Similar coins
Po.et (POE) is the Ethereum token used by the Po.et network to incentivize content creation. This digital asset is paired against other cryptos (such as BTC and ETH) on a few exchanges. 
DeFi Money Market (DMM) empowers everyone to earn interest on their currency, backed by real-world assets represented on-chain.
DATA (DTA) is the digital currency released in early 2018. DATA is listed on a number of exchanges. You can buy DTA with BTC or ETH.