A metaverse breaks the boundaries of time and space between people, realizing a more realistic virtual experience, improving work efficiency, and creating a new business model. Blockchain, as one of the key supporting technologies for a metaverse design, provides a trusted interactive environment. However, the rich and varied scenes of a metaverse have led to excessive consumption of on-chain resources, raising the threshold for ordinary users to join, thereby losing the human-centered design. Therefore, we propose an adaptive and modular blockchain-enabled architecture for a decentralized metaverse to address these issues. The solution includes an adaptive consensus/ledger protocol based on a modular blockchain, which can effectively adapt to the ever-changing scenarios of the metaverse, reduce resource consumption, and provide a secure and reliable interactive environment. In addition, we propose the concept of Non-Fungible Resource (NFR) to virtualize idle resources. Users can establish a temporary trusted environment and rent others' NFR to meet their computing needs. Finally, we simulate and test our solution based on XuperChain, and the experimental results prove the feasibility of our design.

翻译：元宇宙打破了人与人之间的时空界限，实现了更真实的虚拟体验，提高了工作效率，并创造了全新的商业模式。区块链作为元宇宙设计的关键支撑技术之一，提供了可信的交互环境。然而，元宇宙丰富多变的场景导致链上资源过度消耗，提高了普通用户的参与门槛，从而偏离了以人为本的设计理念。为此，我们提出了一种面向去中心化元宇宙的自适应模块化区块链架构以解决这些问题。该方案包含基于模块化区块链的自适应共识/账本协议，能够有效适配元宇宙不断变化的场景，降低资源消耗，并提供安全可靠的交互环境。此外，我们提出了非同质化资源（NFR）的概念来实现闲置资源的虚拟化。用户可建立临时可信环境，租用他人的NFR以满足其计算需求。最后，我们基于XuperChain对方案进行了仿真测试，实验结果证明了设计的可行性。