Enabling Blockchain Interoperability Through Network Discovery Services

2025-06-19

AI Summary

Existing blockchain interoperability research largely overlooks the fundamental challenge of initial network discovery, resulting in cross-chain communication systems lacking dynamic awareness of target chains. Method: This paper proposes the first trustless, decentralized blockchain network discovery service—free from centralized dependencies—built on Substrate. It integrates a P2P overlay network, a distributed hash table (DHT), and a token-based incentive mechanism to enable real-time external discovery of target chains, their assets, and associated services. Contribution/Results: The key innovation lies in fully decentralizing the discovery process and embedding intrinsic incentives for nodes to collaboratively maintain an up-to-date global topology. Experimental evaluation demonstrates that the system supports 130,000 concurrent requests with a median response latency of only 5.5 ms, exhibiting high elasticity and horizontal scalability.

Technology Category

• Search and Optimization: Distributed Search
• Data Mining & Knowledge Management: Scalability, Parallel & Distributed Systems
• Constraint Satisfaction and Optimization: Distributed CSP/Optimization

Application Category

• Security and Privacy: Blockchains and distributed ledgers
• Systems and Infrastructure for Web, Mobile and WoT: Decentralized Web and Fediverse systems
• Economics, Online Markets and Human Computation: Incentives in network design for Web infrastructures and ecosystems

Abstract

Web3 technologies have experienced unprecedented growth in the last decade, achieving widespread adoption. As various blockchain networks continue to evolve, we are on the cusp of a paradigm shift in which they could provide services traditionally offered by the Internet, but in a decentralized manner, marking the emergence of the Internet of Blockchains. While significant progress has been achieved in enabling interoperability between blockchain networks, existing solutions often assume that networks are already mutually aware. This reveals a critical gap: the initial discovery of blockchain networks remains largely unaddressed. This paper proposes a decentralized architecture for blockchain network discovery that operates independently of any centralized authority. We also introduce a mechanism for discovering assets and services within a blockchain from external networks. Given the decentralized nature of the proposed discovery architecture, we design an incentive mechanism to encourage nodes to actively participate in maintaining the discovery network. The proposed architecture implemented and evaluated, using the Substrate framework, demonstrates its resilience and scalability, effectively handling up to 130,000 concurrent requests under the tested network configurations, with a median response time of 5.5 milliseconds, demonstrating the ability to scale its processing capacity further by increasing its network size.

Problem

• Decentralized discovery of unknown blockchain networks
• Interoperability without pre-existing network awareness
• Incentivizing node participation in discovery services

Innovation

• Decentralized blockchain network discovery architecture
• Mechanism for discovering assets and services
• Incentive mechanism for node participation