**6. Conclusion**

Supply chains are becoming more complex and more difficult to manage. Problems exist because manual processes are still used, such as paper-based bills of lading, different computer systems within a company do not integrate, or different computer systems used by the different members of a supply chain may not integrate with each other. Blockchain technology can help solve problems of complex supply chains. Use of blockchain will increase efficiency, increase supply chain visibility, and eventually prevent mistakes and prevent fraud.
