Numeraire is a Cryptographic Token for Coordinating Machine Intelligence and Preventing Overfitting. Numeraire is used to reward data scientists based on their historical ranking on Numerai's leaderboard. The auction mechanism for resolving these stakes will reward correct predictions of a model's ability to perform well on new data. With Numeraire, data scientists will now be able to express their confidence in their models' live performance. Their expressions of confidence help us to emphasize the right models and improve the performance of our hedge fund.