{"count":1,"since":null,"types":["price_drop","price_increase","new_price","new_product","new_ai_agent","new_integration","new_alternative","security_certification","product_change","documented","research_update","funding","acquisition","source_changed"],"statement_id":"st_89771df1197bfa84a1d5","contract":"A change to a state that describes our research (unknown, estimated) is a research_update, never a change to the product. source_changed is a hash difference of the page text and carries no judgement.","changes":[{"id":"1","type":"documented","label":"First documented","material":true,"sentence":"MacBook Air 13-inch: Display size documented as 13.6 (verified). A first finding of ours, not a change at the vendor.","noticed_at":"2026-09-01T23:17:59.941Z","subject":{"kind":"product","slug":"macbook-air-13","name":"MacBook Air 13-inch"},"before":null,"after":{"value":13.6,"verification_state":"verified","confidence":90},"claim_id":"2bad29ce-855e-4263-a85b-38669ad6dfbf","statement_id":"st_89771df1197bfa84a1d5","corrected":null}]}