Just think about one thing:
Why would someone sell USD or BTC to buy this coin? It's a loss-loss game for the hodler of the coin.
Unless you can confiscate people' money in exchange for this coin, i don't see why anyone would be interested in this.
Edit:
In 1990 we had a President in Brazil who had an idea quite similar to yours.
He confiscated every money from every individual in the country (bonds, savings, cd, everything) and gave everyone in the country X "cruzeiros'(the name of our currency in the time). He decided to give back people' money in small amounts for a period of time...
Economy just collapse and he was removed from presidency few months later.
Thank god now I have bitcoin. I am protected from those crazy guys with huge amounts of power.
http://articles.chicagotribune.com/1990-03-25/business/9001240707_1_president-fernando-collor-central-bank-hyperinflation"A day after taking office March 15, Collor withdrew 70 percent of the country`s currency from circulation-an amount equal to $115 billion-and stashed it in the Central Bank, pledging to leave it there for 18 months until the economy cools off."