Blockchain projects are crawling along or being disco'd

A major blockchain technology test between A.P. Moller-Maersk A/S and International Business Machines Corp. has been discontinued. Another one by Walmart to track groceries is moving along slowly. “There’s not one company that has really shown, let’s say, a material change,” said Francesco Bozzano, vice president of the corporate finance group at Moody’s Investors Service.