Triplebyte was trying to do this a while ago, weren't they? My last observations from a year and change ago suggested they were running into what might have been signaling equilibrium issues / risk aversion, but I'd be curious if there's other perspectives around.

That's what Triplebyte is attempting to do, yep. But it does seem like a considerable challenge and they're still figuring out their product. Also feels like for an industry-scale problem like this, it would require a consortium of the major employers (not just FAANG but large companies from Microsoft to Intel to Oracle and beyond) to hash out some sort of standard, not to mention a body representing the engineers (if not a SWE union, at least something like the IEEE/ACM) and the academic institutions that provide the education.

One wonders what the history of how the credentials in medicine or law were forged.