Shares of IBM are down more than 12 percent year-to-date. In a research note published last week by UBS, the bank said technologies like Blockchain IBM'S "best hope for recovery." Cheddar's Hope King spoke with IBM's Vice President of Blockchain, Brigid McDermott, about how the company is using the technology for food safety. McDermott says IBM is getting big businesses to work together with this technology to solve big problems.