I was also thinking if the radio host was reading serial numbers from a specific newish year and the bank notes are more likely to be new then old maybe that would also increase the odds.
Yeah, but I'll pass on that. Give me a job at walmart over reading serial numbers all day.
There is a few stories from the book "Sandworm" which government hacker teams infiltrated a system and used cheesy bitcoin heist as a cover up for the real purpose.
But gotta love goggins, dude likes taking the hardest path to success.