What I never imagined is that you might outsource the process of building that AI itself as a separate entity (maybe even a separate blockchain.) You could do the entire thing with commitments:
* Build a blockchain that is about rewarding data scientists for predictive models on data sets.
* Commit to a hash of a data set (the challenge to the network.)
* Hash enters chain.
* Release data set.
* Give them a dead line for a solution after which they commit to a hash of their solution / predictive model along with an ECDSA pub key for a reward.
* Solutions are released after N blocks.
* Top N solutions automatically receive rewards in this new cryptoasset.
* Zero trust would be required since it operate on outcomes that anyone can check.
* (This could also be done as an Ethereum smart contract instead of a blockchain.)
Scaling that would be quite hard though and you would need to use standard proof-of-work to avoid attacks.
IMO: What I find the most interesting about this article is that they're using masked data as the input which I think is the kind of futuristic cipherpunk vision a lot of people had in mind for Ethereum when it launched. Ethereum + AI + crypto + game theory is a match made in heaven and we probably haven't even scratched the surface of what's possible in this space. I can't wait to see the kinds of things people come up with in the future.
Edit: formatting.