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 the pin description does not confirm it happened then; unverified.
BioLite's own blog post and 16 June 2014 publish date report the Kickstarter[1] smashing its $1M goal for the BaseCamp Stove, predating the pin's stored 30 September 2014 date by over three months and not itself confirming that later date; the page could not be fetched to quote directly.
Engineering.com describes the BaseCamp's thermoelectric generator and fan system and notes the Kickstarter[1] had passed its $45,000 goal with manufacturing "expected to begin in October 2014" - close to, but not an exact match for, the pin's stored 30 September 2014 date.
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. A picture that shows something else, or shows it badly, is looked at too, and moved down or replaced.