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.
Given as a target, not a fixed date, per the pin description: "…n a purpose-built site north of Riyadh. Estimated date.…"
The official Expo 2030 Riyadh site states the event runs "1 October 2030 - 31 March 2031," an exact match to the pin's stored opening date.
Arab News's own headline, "Saudi capital Riyadh to host World Expo 2030," published 28 November 2023, reports the hosting decision itself rather than the opening date, supporting the pin's claim at one remove; a 403 error blocked retrieval of the full text.
Argaam corroborates, "Riyadh Expo 2030 is scheduled from Oct. 1, 2030, until April 1, 2031," matching the pin's stored 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.