As ecosystems develop around competing blockchain platforms, it is clear that interaction between these platforms is essential for success. Early efforts to solve integration challenges have ventured towards cooperative standards incorporated into each codebase or messaging, which undermines the core bene昀椀ts of blockchain. Accenture developed an approach that enables two or more DLT systems to work together without changes to the DLT platforms or introducing messaging. We completed the 昀椀rst working prototypes and continue to re昀椀ne solutions that enable interaction between ecosystems while maximizing the bene昀椀ts of distributed ledgers. 2 CONNECTING ECOSYSTEMS: BLOCKCHAIN INTEGRATION