Last month, the owners of the New York Stock Exchange quietly bought a domain name for a made up word. The misspelled wordplay belongs to startup Bakkt—pronounced ‘backed’—which had been in the works for months. Bakkt introduced itself to the world Friday as a digital asset ecosystem hoping to make cryptocurrency mainstream for consumers and merchants. That’s the goal of many a crypto company, but this time it might be more than just talk. Bakkt will launch with an impressive global partner, Starbucks. “As the flagship retailer, Starbucks will play a pivotal role in developing practical, trusted and regulated applications for consumers to convert their digital assets into US dollars…