Just saw this on the project’s official website:

Q: How are you protecting against adversaries who will try to access the code and data? A: We will be gating access to the training dataset so only researchers accepted into the challenge can access it. Each participant will need to agree to terms of use on how they use, store, and handle the data, and there are strict restrictions on who else the data can be shared with.

Any idea who they’re counting as a “researcher”?

I’m guessing they’re limiting this to people tied to accredited labs or institutions, and hobbyists are out of luck.