Gapcoin is a new prime number based p2p cryptocurrency, which tries to eliminate the sticking points of other scientific currencies like Primecoin or Riecoin. It's a fork of Satoshi Nakamotos Bitcoin, a decentralized payment system which is independent of banks, governments and other centralized regulators. With Gapcoin, you will be able to anonymously send money around the globe in no time. The big improvement in comparison to Bitcoin is that instead of burning electricity for its own sake, Gapcoins Proof of Work function actually does useful work by searching for large prime gaps
Refereum uses the blockchain to directly connect developers and influencers, resulting in lower marketing costs and increased profits for everyone. In addition to more effective growth, Refereum strengthens engagement by offering cash prizes — enabling rewards for anything from an in-game high score to an eSports grand prize. We are working closely with Twitch and Unity, and anyone can play our open source demo today.