Site:
quant.network
Nebulas (NAS) coin is based on its own blockchain and functions as the native utility token of the Nebulas system. This cryptocurrency is featured by the number of exchanges.
Blocknet (BLOCK) coin is provided on a few exchanges. You can trade this coin against BTC.
Arcblock (ABT) token is currently based on cryptocurrency Ethereum protocol. It is a pre-mined utility token used to pay expenses within the ArcBlock ecosystem. At the moment, ABT is listed on a number of exchanges with the possibility to trade it against fiat (KRW on the Bithumb exchange).