Senior Standards and Technology Advisor at the National Institute of Standards and Technology (NIST), Paul Grassi, discusses digital identity, blockchain and more. Bio: Paul Grassi is the Senior Standards and Technology Advisor at the National Institute of Standards and Technology (NIST). He joined NIST in June 2014 to advance and accelerate the development and adoption of identity authentication and authorization related standards and technologies needed to implement the identity ecosystem envisioned in the National Strategy for Trusted Identities in Cyberspace (NSTIC).