SigmaEpsilonChi Karma 302 Created 11 years ago Recent Submissions 1. ▲ Show HN: SineRider, a math puzzle game (github.com) 181 points · 2 years ago · 23 comments 2. ▲ HypChain, the first completely hypothetical blockchain (hypchain.com) 109 points · 2 years ago · 36 comments All submissions on HN · View profile on HN