Square, a subsidiary of Block Inc., is offering U.S. merchants free 'Pay with Bitcoin' signs and zero-fee Bitcoin payment processing until the end of 2026. This initiative, targeting over 4 million businesses, aims to integrate Bitcoin into everyday transactions, reduce processing costs, and boost Bitcoin adoption in the retail sector. Led by Block CEO Jack Dorsey and Bitcoin Product Head Miles Suter, the effort seeks to make Bitcoin payments as seamless as traditional card transactions.