Numeraire is a cryptocurrency project that offers the hardest data science tournament in the world. Participants can build models using machine learning and AI to predict stock market performance and earn cryptocurrency on their NMR staked. The project is backed by Union Square Ventures, the co-founder of Renaissance, and the co-founder of Coinbase. Over $200,000 is paid out every month, and users can get started quickly with example models using XGBoost and linear regression. The project is designed to be clean and regularized, and an example of a complete Numerai model written in Python is available. The encrypted data sets used by Numerai allow for crowdsourcing of stock market prediction models, making it a unique alternative to traditional hedge funds.