[sickpig]

Untraceable money is an oxymoron, the whole point of money is that the whole network of people using it, can trust it is not forged out of someones ass, and is instead what its claimed to be.

Quick someone tell the federal reserve / ecb that QEs can't be used because they are an oxymoron (sorry can't resist).

That said it is possible to have an open ledger used to avoid duble spends without revealing anything about someone finance, just look for monero (xmr) or zerocash.