Blockchain technology has emerged as a transformative tool in government and public services by enabling transparency, security, and efficiency in administrative processes. Research on blockchain models highlights its potential for digital identity management, secure voting systems, transparent procurement, land registration, and welfare distribution, reducing fraud and corruption while improving trust between governments and citizens. Various models, such as permissioned blockchains for inter-agency collaboration and hybrid frameworks for balancing transparency with privacy, have been proposed to suit different governance needs. Studies also emphasize challenges, including scalability, interoperability, regulatory compliance, and citizen adoption, which require carefully designed governance frameworks and pilot implementations. Overall, blockchain-based models hold promise for reimagining public sector operations, fostering accountability, and enabling more inclusive and citizen-centric services.