Traders Magazine 0 Shares Cowen, the US broker-dealer, has partnered with PolySign to give clients access to cryptocurrency and digital assets while Copper, a digital asset infrastructure provider, has raised $50m (€41m) in funding. Mathew McDermott, Goldman Sachs Mathew McDermott, global head of digital assets at Goldman Sachs, said in a report by the bank that digital custody is very different from traditional custody but institutions are getting more comfortable as there institutional-grade offerings which have improved security, execution and risk management. “Many of these entities are now raising capital in the public markets, both to further institutionalize their offerings and credentialize their activities,” he added. “The quality of custody both in terms of the technology itself as well as the products around it have evolved with the market.”