Analyzing the potential of blockchain in combination with the concept of a circular economy, the results of this research project indicate that blockchain could promote sustainable solutions by (1) enhancing business models that contribute to resource efficiency, (2) enabling reliable resource tracking, (3) making resource pricing effective and executable, and (4) introducing complementary currency systems that give an incentive for sustainable behavior. Based on the results of this work, the foundations for a new and sustainable macroeconomic system are outlined.