Source: Cointelegraph.com NewsPhysically backed Bitcoin ETFs, like Bitwise Bitcoin ETF, are safer than any other ETFs due to their unique accounting system, Core Scientific founder Darin Feinstein believes.Read MoreETF, Gold, Transparency, Bitcoin ETF, Gold ETF, Spot Bitcoin ETF, Audit, Physical gold, Blockchain, Ledger, Immutable Ledger, Core Scientific, Darin Feinstein, Bitwise