I'm not sure it falls under socialism, but I always enjoy reading about the "Miracle of Wörgl" and Wörgl's mayor Unterguggenberger. There is even a movie about it!
I'm unsure as well but either way this is fascinating; I've only ever heard the term 'scrip' used with negative connotations so this seems like a very refreshing change. The way the currency value was kept stable also looks to me like a great benefit.
Welp, now I gotta write a blockchain that tries to match this experiment as closely as possible
East Germany? Why do you call that a good example of socialism? Post-wall coming down it was mostly East Germans coming to West Germany, less of the reverse. Even today the eastern half of Germany is typically socioeconomically lower on most stats, and a lot of that stems from decades of decisions made in DDR.