http://www.forbes.com/sites/kashmirhill/2013/11/13/sanitizing-bitcoin-coin-validation/

    "Now the unlikely trio of two technologists and a Wharton grad is
    launching 

Coin Validation,

    a due diligence service for Bitcoin businesses that they hope will
    help set regulators’ minds at ease.

    It’s a tracking system for Bitcoin ownership that would
    theoretically weed out ‘bad actors’ – like the Dread Pirate Roberts
    – from the legitimate Bitcoin business world"

    "But what about Bitcoin laundering services and 

wallets

      designed specifically to make observation and tracking challenging

?

    “The average user is not sophisticated enough to launder Bitcoin,”
    says Guo"