What's your technical solution to this aspect? The solution must be "technologically trivial" which I take to mean implementable today or in the near future with no change to how current regulations or laws work or to how current workstreams outside of the secondary backup system work (i.e., no change is required like having the judiciary start using crypto). We are also using the strict definition of "only." It should be technologically impossible for any person or entity to access the data without a warrant.