Site:
loki.network
UMA, or Universal Market Access, is a protocol for the creation of synthetic assets based on the Ethereum blockchain. UMA was launched in December 2018.
Paypex (PAYX) is based Ethereum protocol. Mercatox remains the only exchange platform, where the token is listed now (PAYX/BTC and PAYX/ETH pairs).
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.