I’m working on porting PoH to StarkNet along with another user of the community. Right now the port is extremely experimental and my thinking about it is changing rapidly, so I haven’t submitted an HIP or even posted about it much here. I’ve brought it up though with Clement, Justin and a few other members of the community.
I’m not even sure that StarkNet is the right L2 to target. It requires rewriting all the PoH contracts in StarkWare’s own language, Cairo, and the ecosystem/tooling is still nascent. We’re working on that right now but it’s too early to say whether we’ll hit a hard block.
I’ll share more once the plans/architecture are more complete. And of course, my experiments shouldn’t discourage anyone else from pursuing other potential paths to L2 scalability. This is a decentralized project, after all!