Still, like Bitcoin itself, BTMs seem poised to become an ever-more regular part of the real world. He says that the machine can sometimes take a very long time—as much as 30 minutes—to complete a transaction. According to figures provided by the company, Coinsource has seen percent growth across the country in , and percent growth in New York City alone. But where these benefits are going, and who really has access to them, is a murkier question. Once it is broadcasted, and depending on how long it takes for miners to verify transactions, confirmations on the blockchain usually takes about 20 minutes. Entrepreneurs of all types have poured into the space the Winklevoss twins, for example, now run Bitcoin exchange Gemini. Powered by Visa and MasterCard accepted here.