This is one I personally have grown fond of: https://github.com/DeDiS/cothority https://github.com/DeDiS/cothority I've heard of blockchain based ideas as well

This is one I personally have grown fond of: https://github.com/DeDiS/cothority https://github.com/DeDiS/cothority I've heard of blockchain based ideas as well but I'll leave that to your google-fu