Stefan Junestrand, PhD Architect, is an expert in Smart Cities, Sustainable Building and Blockchain. He is the CEO and co-founder of Spain’s leading Media Company about Sustainability, Energy and New Technologies for Buildings and Cities. He has published a dozen books and scientific papers and is a frequent Speaker at conferences in Europe, Latin America, and Asia. He is a member of the EU Blockchain Observatory and a main contributor to the “Blockchain 4 Cities” report by United Nations & ITU.