Multi-User Soulbound NFT for Education and Training Based on Key Escrow Model

Abstract

Teaching incentives are important in teaching and training. However, in traditional online teaching and training due to the characteristics of non-disclosure and non-transparency of information, students cannot be encouraged to learn well. In order to provide better incentives can be realized by awarding students with Non Fungible Token (NFT) for their achievements. However, traditional NFT methods do not take into account characteristics such as multi-user co-holding, lifetime holding and non-resale, and interaction based on means such as cryptocurrency wallets raises the threshold for users. In order to allow NFT technology to be better applied to the field of education and training, NFT technology is improved by proposing an NFT incentive mechanism based on the key escrow model, which simultaneously realizes the characteristics of multi-user and soulbounding, and designing a framework of teaching and training system based on NFT incentive. Finally, an experimental analysis is conducted under Ethereum blockchain to validate the rationality and effectiveness of the proposed NFT method, and to evaluate its computation and storage overhead to further prove its usability.