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A Blockchain Approach to Product History Tracking Using Hierarchical NFTs

  • Journal of The Korea Society of Computer and Information
  • Abbr : JKSCI
  • 2025, 30(9), pp.87~97
  • Publisher : The Korean Society Of Computer And Information
  • Research Area : Engineering > Computer Science
  • Received : July 14, 2025
  • Accepted : September 10, 2025
  • Published : September 30, 2025

Nitin Bhagat 1 JongWook Bae 1 Su-Hyun Lee 1

1국립창원대학교

Accredited

ABSTRACT

This paper presents a blockchain-based product tracking framework using hierarchical Non-Fungible Tokens(NFTs), enabling modular representation and traceability. In contrast to existing flat NFT structures, our system introduces a modular and traceable hierarchical model for complex assembly products. A key innovation of the system is a two-phase transfer mechanism where first, structural reassignment updates the NFT hierarchy to reflect new relationships and then, recursive ownership transfer ensures all subordinate NFTs are transferred in a depth-first manner. This design ensures part-level traceability, transparency, and accountability throughout a product’s lifecycle. The system offers practical benefits for domains such as automotive, electronics, and healthcare, where managing modular assets and detailed traceability is critical. By extending the NFT framework to support structural reallocation and recursive transfers, the proposed model enhances product verification, maintenance tracking, and ownership transparency.

Citation status

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