The Sam Altman-founded “proof-of-humanity” project Worldcoin — which rebranded to World — has launched an Ethereum layer 2 blockchain it dubbed World Chain. In an Oct. 17 statement, World said the 15 million users who have verified their identity by scanning their iris for a “World ID” could now use the network. The firm launched World Chain to help improve efficiency and introduce new functionality for users of its Worldcoin (WLD) token as the company looks to expand its onboarding efforts. World said its new blockchain would prioritize verified human users — those with World IDs — ahead of b…