Larry Shi, University of Houston (IMAGE) University of Houston Caption Weidong 'Larry' Shi, associate professor of computer science at the University of Houston and co-author of a paper on the obstacles facing the use of blockchain for global supply chains, says the technology could provide added security. Credit University of Houston Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.