Example ASPNET5 project that issues & validates JWT tokens. See http://capesean.co.za/blog/asp-net-5-jwt-tokens/ for full details.
This project uses OpenIddict to issue JWT tokens & refresh tokens.
It uses ASP.NET Identity V3 and Entity Framework V7 for the user accounts & storage.
Simply run the project and it should seed the database (configure your connection string in the config file), and open the index.html page.
Click the Get Token button and OpenIddict should do it's magic and return a JWT token which will be displayed on the page.