This article presents WekaCoin, a peer-to-peer cryptocurrency based on a new
distributed consensus protocol called Proof-of-Learning. Proof-of-learning
achieves distributed consensus by ranking machine learning systems for a given
task. The aim of this protocol is to alleviate the computational waste involved
in hashing-based puzzles and to create a public distributed and verifiable
database of state-of-the-art machine learning models and experiments.