So, EV code signing certificates? Windows has that, and it'll verify that right in the OS. Git for instance, shows as being signed by

CN = Johannes Schindelin O = Johannes Schindelin S = Nordrhein-Westfalen C = DE

Downside is the cost. Certificates cost hundreds of dollars per year. There's probably some room to reduce cost, but not by much. You also run into issues of paying some homeless person $50 to use their identity for cyber crimes.