Last week, Bank of China Zhejiang Branch launched a four-party cooperation model of brand dealers, dealers, platform service providers and banks – “Tmall dealer supply chain financing products”, which realized the flow of trust through blockchain technology. . It is reported that the underlying technology of the platform is the BOC blockchain platform independently developed by BOC. The use of blockchain traceability, consensus and decentralization features ensure the credibility of transaction information and further reduce the cost of capital control. . The “double-chain” integration of “blockchain + supply chain finance” will provide a new mindset for supply chain financing.