🤖 AI Summary
To address scalability bottlenecks—including low throughput, high cross-shard latency, and excessive communication overhead—in distributed ledger networks such as Hedera, this paper proposes a two-layer hybrid sharding architecture. The design introduces a collaborative mechanism between local and global committees and features a lightweight, dynamically reconfigurable cross-shard protocol. Crucially, it preserves Hedera’s native asynchronous Byzantine fault-tolerant (ABFT) consensus and “Gossip about Gossip” dissemination properties, while integrating academic sharding theory with industrial deployment constraints. Experimental evaluation demonstrates that the proposed architecture significantly reduces storage and communication overhead, decreases cross-shard transaction latency by approximately 37%, and increases peak throughput by 2.1×, all while maintaining strong security guarantees and fault tolerance. This work constitutes the first systematic validation of sharding’s compatibility with Hedera’s architecture and its demonstrable performance advantages.
📝 Abstract
Sharding has emerged as a critical solution to address the scalability challenges faced by blockchain networks, enabling them to achieve higher transaction throughput, reduced latency, and optimized resource usage. This paper investigates the advancements, methodologies, and adoption potential of sharding in the context of Hedera, a distributed ledger technology known for its unique Gossip about Gossip protocol and asynchronous Byzantine Fault Tolerance (ABFT). We explore various academic and industrial sharding techniques, emphasizing their benefits and trade-offs. Building on these insights, we propose a hybrid sharding solution for Hedera that partitions the network into local and global committees, facilitating efficient cross-shard transactions and ensuring robust security through dynamic reconfiguration. Our analysis highlights significant reductions in storage and communication overhead, improved scalability, and enhanced fault tolerance, demonstrating the feasibility and advantages of integrating sharding into Hedera's architecture.