Traceability of Multi-Link Supply Chains

This paper describes a multi-link supply chain model, which includes several links, each of which may have its own participants and supplied goods. Such a model allows to reflect complex production processes, when the final product is formed by the interaction of several supply chain participants. The proposed solution provides independent exchange of information between the links and comprehensive information about the participation of all links in the production of the final product. The use of blockchain technology helps in solving the problems of multi-link supply chain, as blockchain provides a reliable, secure and transparent system for managing data and transactions between supply chain participants. Blockchain can accommodate both logistics and financial transactions. At the same time, it does not limit the possibility of a supplier working with different buyers within different supply chains. For the realization of multi-link systems, a solution is proposed where participants can form supply networks of complex structure, where chains can join, intersect, separate and realize options that best satisfy consumers.