❓Vcity.ai 的 NFT 体系是怎么设计的？✨Vcity.ai构建了面向全球算力网络的三层NFT体系，用于支撑节点接入、任务调度与能力扩展，同时作为网络参与的核心凭证。

❓How is Vcity.ai’s NFT system designed?
✨Vcity.ai has built a three-tier NFT framework for the global AI computing network, supporting node access, task scheduling, and capability expansion, while serving as a network participation credential.