If it did require a trusted source, do you think there would be a way for said source to 1) involve no human administration, 2) behave deterministically and 3)

If it did require a trusted source, do you think there would be a way for said source to 1) involve no human administration, 2) behave deterministically and 3) be resistant to attacks that could break either of the above 2? That would also solve the problem.