Blackbird Labs, a hospitality-tech startup founded by Resy and Eater co-founder Ben Leventhal, launched a Web3 payments platform for restaurants called Blackbird Pay, according to a July 30 announcement. Built on Blackbird’s new blockchain network, Blackbird Flynet, the platform gives restaurants a “way to address the ever-growing problem of shrinking margins and eroding cash reserves by providing them with their very own end-to-end payments and check settlement network for the first time,” according to the statement. Related: Futurama can’t stop making fun of crypto and blockchain Blackbird P…