You are new here. Lurk more. Assange never had a blue check. He used a blue diamond to troll twatter over it.
For most people, the govt will simply convert their FRNs into USDs 1:1 to keep everyone from freaking out. Same with most bond holders - retirement accts, pension plans, etc. We will also probably make good on debt/bonds held by China, Japan, Saudis, etc.
I think the trick is whether we exchange money held in unnamed offshore accounts or cash sitting on pallets in caves. Hint: we wont. Trillions in debt disappears.