OAK RIDGE, Tennessee, Nov. 23 -- The U.S. Department of Energy's Oak Ridge National Laboratory issued the following news release: Although blockchain is best known for securing digital currency payments, researchers at the Department of Energy's Oak Ridge National Laboratory are using it to track a different kind of exchange: It's the first time blockchain has ever been used to validate communication among devices on the electric grid. The project is part of the ORNL-led Darknet initiative, fu  more