Important things to consider when applying (which you've probably considered but worth stating)
- Business model: You'd be applying as a startup not as an open source project, so it's important that go-to-market considerations are built in to the application. For instance applying as a startup that would provide services tied to Truthcoin (i.e. the PolitiFact-esque reputation service that arbitrates claims) could be a good approach that leaves flexibility to pivot down the way.
- Equity: Tied to the consideration of business model is how you'd provide equity to investors. I'm skeptical they'd take equity in the form of blockchain coins, as that's difficult from a compliance standpoint.
Inkling Prediction Markets was a YC backed company so they are interested in the potential of PMs, and it would help with a lot of the chicken/egg problems re: adoption. Seems like a great approach!