Polis

Cryptonex is a blockchain-based payment system that offers its users a decentralized platform to make fiat and cryptocurrency transactions. Users can convert fiat and cryptocurrencies. The Cryptonex network is based on the scrypt algorithm. It also enables debit and credit cards transactions as well as mobile payments.
Cryptonex uses a Proof-of-Stake (PoS) consensus mechanism and offers higher transaction speeds at lower fees.