The Blockchain's hype has brought up many narratives around its potentials - narratives which are typically techno-deterministic, market-driven and follow a Sillicon Valley perspective. However, what can blockchain bring to the commons-oriented communities, if anything? How the issues around algorithmic governance, infrastructure control, transparency, trust, or tokenization, may affect these communities? Can these blockchain features help - or hinder - the communities governance? In this talk, Samer Hassan, researcher at Berkman Klein Center at Harvard and UCM in Madrid, will explore the potentials of blockchain to facilitate the work of these communities. He will explain Nobel laureate Elinor Ostrom’s 8 principles for managing the commons, and analyze how blockchain can contribute to each of them. This is part of his team work in P2P Models, an EU-funded large project to build decentralized, democratic and economically sustainable organizations for the collaborative economy. This talk was presented in the Open 2018: Platform Cooperatives, 26-27 July, Conway Hall, London (UK). More info in: https://2018.open.coop/sessions/workshop-how-can-blockchain-enable-elinor-ostroms-8-commons-principles/ (This presentation is a composition of text and images; Text is released under open license CC BY 4.0 Int; Images are copyrighted and used under Fair Use).