Brazilian neobank Nubank has teamed up with payments platform Lightspark to bring Bitcoin Lightning Network to its 100 million customers in Latin America. The integration is part of Nubank's plan to offer faster, cheaper transfers via blockchain. Lightspark, co-founded by former PayPal president David Marcus, will also integrate the Universal Money Address standard, a payment system built on top of Lightning. Nubank, backed by Warren Buffet’s Berkshire Hathaway, offers trading of 14 cryptocurrencies and recently announced it would allocate 1% of its net assets to Bitcoin.