In theory you should privately invite someone to replicate your work, then publish it if the replication works. You'd probably get scooped though, so you have no choice but to arxiv it immediately.
> In theory you should privately invite someone to replicate your work, then publish it if the replication works. You'd probably get scooped though, so you have no choice but to arxiv it immediately.
What are we optimising for here? I'm not even convinced that that's better. What's the harm in the way they went instead, assuming they're not frauding.