An integration protocol Additional considerations for the solution included: requires that the leaders Asset Locking Mechanism in of two or more DLT based value transfer. At a high-level, ecosystems establish assets are transferred from one DLT to another by “locking” the the business rules, asset on the 昀椀rst chain and then creating a representation of the policies, standards, and governance by which asset on the second DLT platform. they agree to work Prevent Double-Spend in “active state.” When building together. The business a blockchain integration solution, the solution must maintain as logic resulting from these many blockchain-like guarantees governance agreements as is possible. For digital assets (even, digital representations is then used to con昀椀gure of real-world assets), it is the interoperability necessary to ensure that multiple representations of the same asset node and technical do not exist at the same time. implementation. For example, double-spend in a supply-chain may make some assets disappear and other assets be overcounted. 10 CONNECTING ECOSYSTEMS: BLOCKCHAIN INTEGRATION