The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Date has passed, but interestingengineering.com does not confirm it happened then; unverified.
Vice independently reports the same claim as the pin's source (originally an Xconomy story on Momentum Machines' prototype, which the company said could produce roughly 360-400 fully customized burgers per hour) - corroborating the underlying prototype demo, though no single firm date is given and the company's actual 2018 Creator restaurant topped out far lower at about 240/hour.
PYMNTS covers Momentum Machines' (the robot's maker) 2017 funding round, independently confirming the company and robot behind the pin's claim were real, though not pinning an exact date for the 400-burger claim itself.
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.