IT: A Blockchain-Based Lightening Interbank Transaction system Nnamdi Stanley Adom Du Zhang Zoe (Zhiyuan) Lin ABSTRACT Interbank transactions make extensive use of Federal Reserve Wire Network (Fedwire) because they provide real-time wiring. However, frequent Fedwire transactions force banks to pay for redundancy. Clearing House Interbank Payment system (CHIPs) mitigates Fedwire redundancy at the cost of speed. In this paper, we propose Lightening Interbank Transaction (LIT) system, an alternative solution to CHIPs using the blockchain. LIT uses a highly consistent distributed ledger and a wallet to frequently net bank transactions. Certified nodes in the network ensure no one bank has all the net work computation power. Experiments show that our imple- mentation of this peer-to-peer blockchain-based system has better performance than existing systems in terms of both efficiency and monetary implication.