Pundi X (NPXS) is the utility token of the eponymous platform and based on the Ethereum protocol. The cryptocurrency pairs including NPXS are listed on multiple exchanges.
Ethereum is an innovation network providing its own blockchain with its cryptocurrency (Ether or ETH). This blockchain hosts decentralized applications (DApps) that were first introduced by Ethereum. Another innovation of this platform is the implementation of smart contracts which has changed the perception of the possible use of the blockchain, revealing the potential of the technology to its fullest.
SophiaTX (SPHTX) is the cryptocurrency developed by the eponymous platform and marketplace established in 2017. Originally being an ERC20 token, SPHTX underwent a swap to its own mainnet released in mid-2018.