用锁定机制实现频谱资产的可分拆交易，兼顾唯一性和流动性。
Blockchain-Based Spectrum Resource Securitization via Semi-Fungible Token-Lock
- 采用锁/解锁机制替代频繁铸造和销毁，保持资产唯一标识
- 实验显示气体消耗显著降低，且支持授权、证券化与共享功能
- 适合关注区块链频谱管理与资产流动性的研究者
随着6G网络发展，频谱资源需灵活、动态、高效利用，推动基于区块链的频谱证券化。现有基于ERC404混合代币模型的方法依赖频繁的铸造与销毁操作，破坏代币身份连续性并增加链上开销。本文提出半同质化代币锁定（SFT Lock）机制，通过锁/解锁实现频谱资产的非同质化身份保留与历史可追溯性，同时支持份额所有权与转让。该机制以确定性状态转换替代铸造/销毁，确保资产生命周期的一致性表示，并大幅减少链上操作。基于此设计了模块化智能合约架构，支持频谱授权、证券化与共享，并引入质押机制提升资产流动性。在私有以太坊网络上的实验表明，相较于ERC404混合代币模型，本方法实现显著的气体节省，同时保持功能正确性与可追溯性。
原文摘要 · Abstract (English)
As 6G networks evolve, spectrum assets require flexible, dynamic, and efficient utilization, motivating blockchain based spectrum securitization. Existing approaches based on ERC404 style hybrid token models rely on frequent minting and burning during asset transfers, which disrupt token identity continuity and increase on chain overhead. This paper proposes the Semi Fungible Token Lock (SFT Lock) method, a lock/unlock based mechanism that preserves NFT identity and historical traceability while enabling fractional ownership and transferability. By replacing mint/burn operations with deterministic state transitions, SFT Lock ensures consistent lifecycle representation of spectrum assets and significantly reduces on chain operations. Based on this mechanism, a modular smart contract architecture is designed to support spectrum authorization, securitization, and sharing, and a staking mechanism is introduced to enhance asset liquidity. Experimental results on a private Ethereum network demonstrate that, compared with ERC404 style hybrid token models, the proposed method achieves substantial gas savings while maintaining functional correctness and traceability.
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