Ulumuddin, Z. A. and Maulana, H. (2026) “Design and development of a Web3-based student graduation badge system for FIKTI UMSU using non-transferable NFTs and smart contracts on the Ethereum testnet”, Jurnal Sains, Teknologi & Komputer, 3(1), pp. 48–54. doi: 10.56495/saintek.v3i1.1309.