Reliable inter-blockchain communication framework for improving scalability
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The scalability problem is a well-known problem in blockchain implementation. Traditional solutions such as sharding and side chain aim to solve this problem within one blockchain system. On the other hand, some companies seek to use interoperability for overall scalability. By learning from these works, this study proposes a novelty inter-blockchain communication framework that provides secure interoperability for each blockchain. In this framework, cross-chain tasks need to follow a workflow between the two systems. The result of these tasks will peg to all other blockchains through the blockchain's terminated branch transferred in a gossip network. The workload of anchoring is dynamically compressed and eventually achieved. For a given rate of cross-chain tasks, our framework can guarantee the number of message, which are directly related to the task, will not change according to the scale of the system.
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