Probably "unprecedented" is too strong: the citizens' "Voice" Голос/Голас initiative at the 2020 Belarusian presidential election was very much in the same spirit.
An advantage in the VE case was the independent statisicians' team with a preregistered protocol - AltaVista PVT (Parallel Vote Tabulation).
Also the csv file with a static domain for the jpegs helps with reproducibility.
https://en.wikipedia.org/wiki/2020_Belarusian_presidential_election#Internet_initiatives