智能合约表明：飞机维护记录现在值得信赖
Smart Contract Tells: Aircraft Maintenance Records Are Now Trustworthy
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中文总结 AI 辅助
针对飞机维护记录分散问题，提出基于双层架构的区块链锚定dApp，结合IPFS链下存储与链上锚定，每条记录链上载荷为\(\mathcal{O}(1)\)。给出经济框架建模相关关系，实验显示可大幅降成本，验证了原型技术可行性与经济潜力。
中文摘要 AI 辅助
飞机维护记录对适航性和资产估值至关重要，但常分散于各利益相关者，造成验证瓶颈和信息不对称，可能压低飞机残值。本文提出基于双层架构的区块链锚定去中心化应用（dApp），结合基于星际文件系统（IPFS）的链下存储与内容标识符（CIDs）及选定元数据的链上锚定。链上每条记录的有效载荷与链下文件大小有关，相比直接链上存储每条记录为\(\mathcal{O}(n)\)，这里每条记录保持为\(\mathcal{O}(1)\)。该架构纳入了联邦航空管理局（FAA）电子记录保存指南中的元数据和可追溯性控制。主要贡献是一个经济框架，对防篡改维护记录来源、审计工作流程持续时间、飞机残值和运营成本之间的关系进行建模。在币安智能链测试网上进行的7千字节实验中，与直接链上存储相比，CID锚定使燃气消耗降低了93.9%。在明确的场景假设下，审计成本模型显示潜在节省超过90%。这些结果支持了原型的技术可行性并说明了其经济潜力，不过估计的财务效益仍有待使用运营数据进行验证。
英文摘要
Aircraft maintenance records are critical to airworthiness and asset valuation, yet they are often fragmented across stakeholders, creating verification bottlenecks and information asymmetry that may suppress aircraft residual value. This paper proposes a blockchain-anchored decentralized application (dApp) based on a dual-layer architecture that combines InterPlanetary File System (IPFS)-based off-chain storage with on-chain anchoring of Content Identifiers (CIDs) and selected metadata. With respect to off-chain file size, the on-chain payload per record remains $\mathcal{O}(1)$, compared with $\mathcal{O}(n)$ for direct on-chain file storage. The architecture incorporates metadata and traceability controls informed by Federal Aviation Administration (FAA) electronic recordkeeping guidance. The main contribution is an economic framework that models the relationship between tamper-evident maintenance-record provenance, audit workflow duration, aircraft residual value, and operational cost. In a 7-kB experiment conducted on the BNB Smart Chain testnet, CID anchoring reduced gas consumption by 93.9\% compared with direct on-chain storage. Under explicitly stated scenario assumptions, the audit-cost model indicates potential savings of more than 90\%. These results support the technical feasibility of the prototype and illustrate its economic potential, while the estimated financial benefits remain to be validated using operational data.
