The document discusses the current landscape of transaction banking and the significant changes brought about by new fintech technologies like blockchain. It outlines the traditional transaction banking ecosystem and some of the organizations involved. New entrants like Bitcoin and blockchain technology are disrupting the system and reducing complexity. There is potential for blockchain to vastly reduce costs by streamlining processes. However, issues around compliance, regulation, and technical questions still need to be addressed. Overall, collaborative engagement between banks and fintech companies around new technologies like blockchain could transform transaction banking.