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Related Experiment Video

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2EZBFT for Decentralized Oracle Consensus with Distant Smart Terminals.

Yuke Cao¹, Kun She¹

¹School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China.

Sensors (Basel, Switzerland)

|October 29, 2025

Summary

This summary is machine-generated.

We introduce 2-layer EaZy BFT (2EZBFT), a novel consensus method for decentralized oracles. This approach enhances efficiency and reduces network overhead in geo-distributed sensor data collection, improving blockchain performance.

Keywords:

blockchain technology consensus mechanism data collection distributed oracle

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Area of Science:

Blockchain technology
Decentralized systems
Network consensus algorithms

Background:

Geo-distributed sensor data collection faces challenges with traditional consensus methods due to network overhead and latency.
Decentralized oracles are crucial for relaying on-chain data, especially in sensitive applications like healthcare networks.
Existing BFT (Byzantine Fault Tolerance) algorithms struggle with efficiency in geographically dispersed deployments.

Purpose of the Study:

To propose a novel layered BFT consensus method, 2-layer EaZy BFT (2EZBFT), to address efficiency and overhead issues in geo-distributed deployments.
To improve data collection and on-chain reporting for decentralized oracles.
To enhance the performance of blockchain-real-world data exchange.

Main Methods:

Implemented a two-layer consensus architecture: 'intra-group synchronization, inter-group consensus'.
Formed multiple independent groups of smart terminals for localized synchronization.
Utilized leader-side aggregation for reduced cross-group interactions and overall network overhead.

Main Results:

2EZBFT significantly reduces intra-group communication complexity and cross-group interactions.
Experimental simulations demonstrated up to 45% higher throughput compared to flat BFT algorithms (PBFT, HotStuff) under high load.
Achieved improvements in network overhead and consensus latency, ensuring consensus security and consistency.

Conclusions:

The proposed 2EZBFT offers a practical and efficient solution for data interaction in decentralized oracles.
The layered consensus approach provides a viable path for enhancing blockchain performance in real-world data exchange scenarios.
2EZBFT offers guidance for optimizing blockchain systems in geo-distributed environments.