Nasdacoin is developing a blockchain with a hybrid consensus mechanism that combines elements of Proof-of-Work (PoW) and Proof-of-Stake (PoS). Nasdacoin uses the Scrypt hashing algorithm and is powered by the NSD coin. The company plans on developing a comprehensive ecosystem with a native exchange, wallet, App, and marketplace. They also plan on allowing Nasdacoin holders to transfer their NSD balance to a Visa card that can be used anywhere.

PAC coin, short for People’s Alternative Choice, is a cryptocurrency with a hybrid Proof-of-Work (PoW) and Proof-of-Stake (PoS) consensus mechanism. PAC Coin aims to encourage cryptocurrency adoption by improving usability and community governance. The network will rely on a system of masternodes to help verify transactions.

Bitcoiin is a cryptocurrency that was created to address some of the issues that have plagued the original Bitcoin ecosystem. It's Proof-of-Work (PoW) consensus mechanism is designed to decrease transactions times and fees, as well as make mining rewards easier to earn.