Token processing in digital asset transaction platform

Chong, Ru Genn (2025) Token processing in digital asset transaction platform. Final Year Project, UTAR.

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Abstract

This project has developed FC Uniswap—a comprehensive decentralised exchange platform designed to address critical challenges in digital asset token processing. The system integrates the Uniswap V2/V3 protocol with LayerZero V2 cross-chain bridging technology, demonstrating advanced token handling capabilities within digital asset trading platforms. Implementation focused on three core objectives: enhancing interoperability between blockchain platforms through a cross-chain communication framework; optimizing coordination in asset tokenization processes via a Byzantine fault-tolerant synchronization protocol; and strengthening smart contract security through a hybrid verification system. The project employs a layered architecture: the frontend is built using Next.js, smart contract development utilises the Hardhat tooling, and blockchain interactions leverage the ethers.js v6 library. Core technological innovations include a burn-and-mint cross-chain bridge mechanism that enables asset transfers between Polygon Amoy and Ethereum Sepolia testnets, multi-compiler support compatible with Solidity versions 0.4.19 to 0.8.20, and the integration of Uniswap V3's concentrated liquidity feature to enhance capital efficiency. Testing demonstrated a 100% success rate in core functionality (all 14 test cases passed) and an over 95% transaction success rate in mainnet fork environments. The project successfully resolves interoperability challenges through standardised cross-chain protocols, streamlines development workflows to reduce process fragmentation, and implements foundational security measures, including access controls and re-entrancy protection.

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