(Bloomberg) -- BlackRock Inc., the world’s largest asset manager, is preparing to list an exchange-traded product tied directly to Bitcoin in Europe, following on from the success of its $58 billion US ETF tracking the cryptocurrency.Most Read from BloombergState Farm Seeks Emergency California Rate Hike After FiresTransportation Memos Favor Places With Higher Birth and Marriage RatesNYC’s Newest Transit Leader Builds a Worker-Driven StrategyNew York’s First ‘Passive House’ School Is a Model of