Blockchain Tuesday is a recurring community gathering for builders, developers, and founders in New York City. The March 24 session runs from 5:30 to 8:30 PM and includes co-working, networking, and a structured workshop on cross-chain bridges and PayFi. The workshop covers how blockchain bridges function, types of bridging architectures, cross-chain communication mechanisms, and security considerations, with applied examples from DeFi, RWAs, and multi-chain projects.