By Jonathan Gordon and Jesse Welsh-Keyser ( October 16, 2018, 4:01 PM EDT) -- It is no surprise to thoughtful commentators that as the hype and prices for cryptocurrencies have waned, functional use cases for blockchain technology have finally taken center stage. For health care, blockchain presents potential solutions to long-standing limitations and frustrations for both providers and patients in both traditional health care and emerging health-related technologies. Blockchain-powered tools may resolve many technical barriers that have prohibited providers from easily exchanging medical and health records while ensuring patients maintain control over when and how their protected health information is shared. And it could potentially empower consumers to control their own biometric, DNA and genomic data with researchers and innovators while enabling the development of new treatments and improving the quality of health care more broadly. But like all technologies with potentially revolutionary applications, blockchain presents novel legal challenges and questions for startups and innovators....