تماشای ویدئو فناوری زنجیره بلوکی چطور طی ۱۲ ماه گذشته عملیاتی شد از آی-ویدئو
Jerry Cuomo, vice president of blockchain technologies at IBM, talks to Joy Macknight about how the hype around distributed ledger technologies has turned into action during the past 12 months.