The Spanish Red Cross has launched RedChain, a blockchain platform designed to enhance transparency and privacy in humanitarian aid distribution. Developed with Barcelona-based tech firms, RedChain digitizes the relief process, ensuring secure and immutable record-keeping while protecting beneficiary data through zero-knowledge credential technology. The platform operates on a permissioned blockchain, allowing authorized organizations to track donations in real-time. Following extensive testing in 2024, RedChain has demonstrated a 30% reduction in aid distribution times and significant cost savings. The system's automated verification processes and smart contracts improve operational efficiency and accountability. This national-scale implementation sets a new standard for humanitarian technology, with plans for international interoperability and additional features underway.