Blockchain-Enabled Immunization Records for Secure Pediatric Healthcare

Child immunization programs are critical for public health, yet their record management remains a challenge due to reliance on manual or centralized digital systems, leading to issues of data integrity, accessibility, and transparency. This paper presents an Ethereum blockchain-based solution introducing advantages over traditional cloud-based architectures. The proposed framework leverages smart contracts, decentralized storage, and interoperability with CVX codes, ensuring secure, tamper-proof, and transparent immunization records. Unlike centralized cloud systems, the blockchain-based architecture mitigates single-point failures, enhances stakeholder's trust, and provides superior scalability and cost efficiency. The framework addresses multi-stakeholder needs, enabling governments, healthcare providers, and parents to access reliable immunization data anytime.