It is very good article with lots of research work done before writing. Your explanation based on EDI with FAX example is good, also you have explained blockchain in simple way that even a common man can understand. Also you have explained about the methodologies involved in current supply chain management system along with its shortcomings. In the last if we can implement Blockchain solutions at enterprise level for supply chain management system then it would just be a start. Hope everything is implemented practically in future at production level.