Blockchain Committee Node Election for Lower Consensus Latency
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Solution Overview
Problem
Decentralized blockchain systems face significant consensus delay and network latency due to large-scale node networks, which hinder transaction processing speed and efficiency, particularly in Proof of Stake (PoS) systems where randomly selected committees use Byzantine fault tolerance consensus protocols.
Innovation Solution
A blockchain technology that employs a predefined shuffling algorithm to create a draw pool of validator nodes based on their voting power, selects top entries as committee members, and establishes priority connections among nodes with higher voting power to reduce network hops and consensus time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hundreds of nodes are randomly selected to constitute the block generation committee, then the safety of the consensus protocol is improved, but the time to reach block consensus becomes very long
Solution Approach 1:
The patent segments the large-scale node network into hierarchical layers: validator nodes (first layer) and committee nodes (second layer). This segmentation allows the system to maintain safety through a large validator base while achieving faster consensus through a smaller, strategically selected committee subset, directly resolving the contradiction between committee size and consensus speed.
Solution Approach 2:
The system performs preliminary actions by pre-registering validator nodes and pre-establishing their network connections before consensus is needed. The draw pool is pre-generated based on validator information, and priority connections are established in advance, enabling faster consensus execution without compromising safety.
2Adaptability or versatility
If nodes are randomly selected to constitute the committee in a blockchain system having large scale nodes, then the decentralization is maintained, but the average number of network hops between the nodes becomes large
Solution Approach 1:
The patent applies local quality by making different types of nodes have different connection characteristics. Validator nodes establish priority connections with other validators, creating locally optimized connection paths. This allows the system to maintain overall decentralization while creating locally efficient communication paths that reduce network hops for consensus-critical messages.
Solution Approach 2:
Validator nodes serve as intermediaries between the broader network and the committee nodes. By establishing priority connections among validators and using them as message relay points, the system reduces the average network hops required for committee communication while maintaining decentralization through the validator layer.
3Reliability
If a large number of nodes participate in the consensus protocol, then the security and decentralization are improved, but the transaction processing speed lowers
Solution Approach 1:
The system segments participants into two functional groups: validator nodes that maintain security and decentralization through large numbers, and committee nodes that handle consensus operations for speed. This segmentation allows the system to achieve both high security/decentralization and high transaction processing speed by assigning different roles to different node subsets.
Solution Approach 2:
The system applies partial action by having only a subset of validators (the committee) actively participate in each consensus round, while the full validator set maintains security. This partial participation in consensus operations reduces processing overhead and increases transaction speed while the complete validator set preserves security and decentralization guarantees.
Data Source
AI summary
Disclosed are an apparatus and method for electing a committee node in a blockchain. The apparatus for electing a committee node in a blockchain is configured to transmit a staking transaction including validator information to a blockchain system to register a validator node, generate a draw pool for electing a committee node based on the validator information, change entries of the draw pool using a predefined shuffling algorithm, select a preset number of top entries as votes of a committee member from among the entries of the shuffled draw pool, and elect, as the committee node, the validator node that has acquired votes of a committee.