Abstract:
In supply chain systems, financial data is critical for companies to obtain financing. However, the state-of-the-art supply chain systems adopt a centralized management model, where the information among participants in supply chains is asymmetric, and data may be attacked accordingly. It is quite challenging to build a credible data storage platform. To address this problem, a blockchain-based supply chain financial data storage model is proposed to provide credible data for all parties in the supply chain. Firstly, the inter-planetary file systems are combined to store the key data of the supply chain finance on-chain and off-chain to reduce the burden of large file storage on the blockchain and improve the storage efficiency. Secondly, a dual-chain architecture is proposed, and the smart contracts are designed to store and access data on the chain. Finally, a model on the alliance chain platform is built to verify the effectiveness and efficiency of the proposed model. Experimental results show that our proposed model has high storage efficiency and is suitable for the scenarios of supply chain financial data storage.