Network resiliency is the capacity of a distributed system to maintain its operations and integrity despite failures, attacks, or adverse conditions. In blockchain networks, this refers to the system’s ability to resist censorship, remain available, and continue processing transactions even if some nodes become compromised or offline. It is achieved through decentralization, redundancy, and robust consensus mechanisms that ensure the network can withstand various disruptions. A highly resilient network is crucial for the security and trustworthiness of digital assets and decentralized applications.
Context
Network resiliency is a paramount concern for the long-term viability and security of blockchain protocols, particularly as they scale and face increasing threats. Discussions often involve assessing the effectiveness of different consensus algorithms and decentralization metrics in preventing network disruptions. Efforts to improve resiliency focus on diversifying node operators, enhancing network infrastructure, and implementing advanced fault-tolerance mechanisms.
This research establishes fundamental communication lower bounds for randomized Byzantine broadcast in dishonest-majority networks, framing the ultimate scalability limits.
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