From a popularity perspective, this type of project is indeed not "sexy"—no application development, no hype around concepts, and no immediate scene dividends. But it is tackling a hard nut that cannot be avoided: when AI makes decisions for you, why trust it?

This is the logical evolution of blockchain. In the past, the blockchain addressed the issue of "trustworthy ledger," but now someone wants to solve the problem of "trustworthy thinking process." Writing reasoning processes on the chain and using zero-knowledge proofs to constrain computation steps essentially turn AI's black-box decisions into verifiable and traceable transparent processes. It is highly technical, but in the long run, this might be more fundamental infrastructure than the application layer.