Design and implement scalable digital participatory budgeting systems for cities and municipalities to allocate 5-20% of public budgets through direct citizen voting

Develop blockchain-secured voting infrastructure with offline-capable voting kiosks. Implement liquid democracy features (delegation, proxy voting). Integrate with municipal budget systems. Standardized platform deployable across cities.

1000+ cities worldwide have PB programs. NYC: 200K citizens participate annually, $300M allocated. Increased public trust by 18%, reduced corruption by 12%. Digital-first approach scales PB from 30M to 300M citizens globally. Estimated social ROI: 3.2x (measured by increased civic engagement and service quality).