For poverty to be eradicated 100% it would take more than a new currency, you would need to convince rich people that they can't be that rich, because there aren't enough resources in the world and if we want not a single person to be poor, we have to raise the average global standard of living, that only means the top richest people have to lower their lifestyle, and good look with that unfortunately, they are psychopaths.
Poverty will never end. There will always be an imbalance in terms of wealth distribution. That's the reality of life. But there are ways to lessen poverty and many philantrophists like Bill Gates donate huge amounts regularly to help those in need have hope for a better future.