You will never find the project winner because he is dead    But you can find the project owner. But a project owner usually doesn't waste time talking to strangers. If you want to talk about the bounty, you can contact the project's marketing department.  You can email them or find them on Telegram, Discord and other chat rooms

There is a strategy and technique to contracting project team and convince team to run a bounty campaign with him. Which a bounty managers know best. And everyone uses there own strategy and no one will ever tell anyone's secret. So you move on from your own thoughts good luck