ICB (Big Intelligence Chain) is committed to digitally creating an artificial intelligence virtual image for users based on big data, according to the authentication of different individual data sources, through 3D stereoscopic image reconstruction and voice recognition technology—intelligent digital Twin IDT (Intelligence Digital Twin), and put individual data and IDT on the chain for authentication, authorization and management. Intelligent digital twins can simulate the behavior of individuals in real and virtual environments. Under the authorization and supervision of individuals, intelligent digital twins can complete various data interaction behaviors on behalf of individuals.