Bruno Rodrigues, Eder John Scheid, Jonas Brunner, Calvin Falter, Guilherme Sperb Machado, Thomas Bocek, Burkhard Stiller: FlatFeeStack: a Blockchain-based Sustainable Public Funding of Open Source Projects; UZH, IFI-TecReport No. 2022.05, Zürich, Switzerland, June 2022, URL: https://files.ifi.uzh.ch/CSG/staff/rodrigues/extern/publications/TR-FlatFeeStack.pdf.