@unpublished{publication-18053,
	author={Parra Moyano, Jose and Schmedders, Karl and Reich, Gregor Philipp},
	doi={10.2139/ssrn.3399742},
	institution={University of Zurich},
	issn={1556-5068},
	number=3399742,
	pages=30,
	series={SSRN},
	title={Urns filled with bitcoins: new perspectives on proof-of-work mining},
	year=2019,
}