Dogecoin is a cryptocurrency with a focus on fun, generosity, and community. It is unlike many other blockchain projects in that it does not aim to solve any ambitious problems. Dogecoin was originally created as a meme coin and has gained a large following that use the coin (DOGE) as an internet tipping and fundraising system.
Although Dogecoin was first created as somewhat of a joke, it has a passionate community that has used the platform for a variety of purposes. The project has gained widespread publicity and DOGE is traded on many exchanges.

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Vitae is a Proof-of-Stake (PoS) blockchain platform that is a fork of PIVx. It is based on Blackcoin's PoS protocol. The company's marketing materials claim that its focus will be on facilitating social rewards and global prosperity, but they do not provide any specifics about what will distinguish them from other networks. It is powered by the VITAE coin.

PRIZM is an open-source cryptocurrency based on the NEXT core. The PRIZM architecture is built in JAVA. It has a Proof-of-Stake (PoS) consensus mechanism that varies slightly from other PoS algorithms. It is designed to be more resistant to attacks against the network. PRIZM has developed the concept of paramining, which helps the network achieve consensus and encourages community participation.