Why should anyone believe you? This reminds me of that middle-school trope of responding to social challenges with claims of having a girlfriend in another country.
I think it's clear at this point that the exploit exists, but is very hard to discover even with AI. It's likely that only top security groups and nation states have it right now, no one who would care about $2,000
It’s easy to close this matter: Dan can communicate the wallet key to the contest operator out of band, and if the operator affirms, then we know it’s true (assuming they are not conspiring to deceive the public, which seems unlikely).