If you list pub list, then I have no idea how to find proof of the fact.

Edit: Below are a bit ranty comments on research style. Please ignore it and provide pointers that show the person created a new research area.

And frankly, the changing of the research areas (security -> deep learning -> blockchain) are a typical symbol of smart people who are good at catching trendy research topics, but never achieved the true top-tier research results. To be specific, such people are absolutely smart and intelligent, but they have a pattern to always latch on so-called cutting-edge topics, and quickly gain high reputation. In the end, their fame and what they do usually does not well match each other.