This is interesting, from what I have seen the solutions are trying to solve symptoms but not the fundamental root problem. What is the entire interview proces

This is interesting, from what I have seen the solutions are trying to solve symptoms but not the fundamental root problem. What is the entire interview process to solve, the problem is trust. Can we trust this person to know what they claim they know, can we trust this person to be a good member of the team etc. The reason we do code interviews, whiteboard exercises, culture fit assesstments is to make sure we want trust that hire. Every company tries and checks for different things, the question that I been asking is there a model for someone to provide 'trust by proxy'