ISO blockchain education video

Does anybody have that video where a guy describes bitcoin’s public ledger, there’s people standing in front of tables and everybody has white masks on and he’s like “if one system changes their ledger so it doesn’t match the others, everybody knows “ and all the other people look directly at the malicious actor?

I swear I just saw it two or three days ago on ( r/cryptocurrency I think )and I can’t find it now!

I think it was produced by forbes or bloomberg or some other finance news agency.