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.
Happened as dated, per the source: "Year of Completion: 2015."
The Skyscraper Museum's own building page is a specialist, authoritative primary source for supertall buildings like 432 Park Avenue, backing the pin's December 2015 completion claim, though the page content could not be retrieved (domain blocked) to quote directly.
Wikipedia states 432 Park Avenue "had been officially completed on December 23, 2015," matching the pin's stored date exactly.
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.