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.
Wikipedia's Cannon Lake article says it is "based on Palm Cove, a 10 nm die shrink of the Kaby Lake microarchitecture", the "first mainstream CPUs to support the AVX-512 instruction set", and that the sole model, the Core i3-8121U, has its integrated GPU disabled.
AppleInsider reports Intel's first 10nm Cannon Lake chip, the Core i3-8121U, "launched in the second quarter of 2018" and had shipped by the article's May 17, 2018 publish date - postdating the pin's stored April 1, 2018 date by roughly six weeks.
TechPowerUp's own title and May 16, 2018 publish date - "Intel Core i3-8121U Cannon Lake Processor Debuts in Lenovo Ideapad 330 Laptop" - corroborate AppleInsider's[3] near-identical May 2018 timing, both later than the pin's stored April 1, 2018 date, though the page itself could not be fetched directly.
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.