@INPROCEEDINGS { AUTHOR = "Felipe Bravo-Marquez and Steve Reeves and Mart{\'{\i}}n Ugarte", TITLE = "Proof-of-Learning: a Blockchain Consensus Mechanism based on Machine Learning Competitions", BOOKTITLE = "1st IEEE International Conference on Decentralized Applications and Infrastructures (DAPPCON)", PAGES = "119-124", MONTH = "Apr", YEAR = "2019", PUBLISHER = "IEEE Computer Society Press", }