Univrsity Of Tehran Press Journal of Information Technology Management 2980-7972 18 2 2026 04 01 Blockchain-Based Smart Multimodal Biometric Multimedia Transmission 110 119 107233 10.22059/jitm.2026.107233 EN Ghada Alhudhud Professor, Department of Data Science and Artificial Intelligence, Faculty of Information Technology, Al-Ahilya Amman University, Amman, Jordan. Marwan Al-Akaidi Professor, Vice Chancellor and CEO Wigwe University, Isiokpo, Nigeria Journal Article 2026 06 01 In recent years, the rapid growth of freely accessible digital and multimedia content, coupled with declining trust in online security, has created an urgent need for more reliable and efficient transmis-sion frameworks. Conventional protection methods—such as passwords and periodically updated encryption keys—have proven inadequate against escalating cyber threats, identity spoofing, and da-ta breaches. This study presents a novel framework that integrates blockchain technology with seam-less biometric authentication to ensure secure data transmission. The system employs multimodal biometric and facial recognition techniques to encrypt multimedia content, while a blockchain ledger verifies, traces, and records all data exchanges within a self-sufficient validation environment. Through architectural design, simulation, and threat modeling, results show that combining multi-modal biometric fusion with blockchain significantly enhances authentication reliability and data integrity, minimizing manipulation and unauthorized access. Unlike traditional systems, the pro-posed framework strengthens data consistency, user identity assurance, and protection from cyberat-tacks—delivering a superior user experience well-suited for next-generation multimedia applica-tions. https://jitm.ut.ac.ir/article_107233_4ec91f1bb0d1f928513f5fdc074df4c8.pdf