It’s tough, because a degree demonstrates perseverance and conformism. There’s no short-cut to either because a short-cut would be the choice of non-conformists & less perseverant people. There’s a great deal of work on this, known as the ‘signaling model of education’.
I agree with this broadly speaking, I wasn't necessarily asking for a shortcut or way to undermine it, more just of a way of demonstrating this ability assuming you have it.
The problem with demonstrating this equivalence is that signalling must be expensive to work; there's no 'low-cost' substitute for signalling. One example is natural diamond engagement rings; they must be expensive to signal commitment; an imitation doesn't do the job, no matter how beautiful.
