DPI in the Age of Web3 and Decentralized Infrastructure

Abstract

Digital Public Infrastructure (DPI) represents a transformative paradigm for emerging economies, providing foundational systems for identity verification, payment processing, and data exchange. The convergence of DPI with Web3 technologies and decentralized infrastructure creates unprecedented opportunities for inclusive economic development. This chapter examines how blockchain, distributed ledger technologies, and decentralized protocols enhance traditional DPI frameworks, analyzing implementations across emerging markets with emphasis on India's pioneering India Stack model. Through examination of 220 million active blockchain addresses globally and DPI implementations reaching 1.3 billion citizens, this research demonstrates that Web3-enabled DPI can overcome institutional voids, reduce transaction costs by up to 70%, and facilitate financial inclusion for 730 million unbanked adults. The chapter analyzes technical architectures, governance models, security frameworks, and socioeconomic impacts while addressing challenges including digital divides, regulatory gaps, and sustainability concerns. Key findings reveal that DPI integrated with Web3 infrastructure contributed 0.9% to GDP in 2022, projected to reach 4.2% by 2030, with the global blockchain market valued at $31.18 billion in 2025 and forecasted to reach $393.42 billion by 2032.