[Paper Review] Traceability Decentralization in Supply Chain Management Using Blockchain Technologies

Thomas Sermpinis, Christos Sermpinis|arXiv (Cornell University)|Oct 22, 2018

Blockchain Technology Applications and Security2 references8 citations

TL;DR

This paper proposes a blockchain-based decentralized traceability system for supply chains to enhance data integrity and transparency, eliminating single points of failure. By leveraging blockchain's immutability and distributed architecture, the authors design and evaluate a model that outperforms traditional centralized systems in auditability and resistance to tampering.

ABSTRACT

With the increase of web users and applications with real time requests, the ability to identify, track and trace elements of a product as it moves in the supply chain is deemed necessary, and for many industries is even mandated by national or international regulations. Traceability presupposes the integrity and transparency of data that is saved and shared. This is a problem for current technologies, as there are many examples with tampered data and database vulnerabilities that resulted in serious implications and data loss. A solution to this problem can be the decentralization of the system, which will remove the central point of failure. To that effect, blockchain or DLT technologies, an emergent technology that enables the decentralization of a network can be used, by implementing a trustless model to achieve it. Blockchains are tamperproof and transparent, which means that by exploiting blockchain characteristics, traceability can be improved. A model that describes the decentralization process of the supply chain traceability part has been developed for this paper and is later evaluated and compared with the traditional system.

Motivation & Objective

• Address the critical need for reliable, tamper-proof product traceability in supply chains due to increasing regulatory demands and data integrity risks.
• Identify limitations in current centralized systems, including vulnerability to data tampering and single points of failure.
• Propose a decentralized traceability model using blockchain technology to ensure data transparency and immutability.
• Evaluate the proposed model against traditional centralized systems to demonstrate improvements in security and reliability.

Proposed method

• Design a blockchain-based architecture to decentralize supply chain traceability, removing reliance on a central authority.
• Utilize distributed ledger technology (DLT) to ensure data is cryptographically secured and time-stamped across multiple nodes.
• Implement a trustless model where data integrity is enforced through consensus mechanisms and cryptographic hashing.
• Structure the system to allow real-time tracking of products through each supply chain stage with verifiable records.
• Ensure end-to-end transparency by enabling authorized stakeholders to audit the entire product journey using immutable records.
• Compare the proposed model with traditional centralized systems using qualitative and structural analysis of traceability performance.

Experimental results

Research questions

• RQ1 How can blockchain technology improve the decentralization and integrity of supply chain traceability systems?
• RQ2 What are the key architectural differences between centralized and blockchain-based traceability models in supply chains?
• RQ3 To what extent does decentralization reduce the risk of data tampering and single points of failure in supply chain systems?
• RQ4 How does the proposed blockchain model enhance transparency and auditability compared to traditional systems?
• RQ5 What are the structural and operational advantages of using distributed ledger technology for product traceability in regulated industries?

Key findings

• The proposed blockchain-based model successfully eliminates single points of failure by distributing data across a decentralized network.
• Data integrity is significantly enhanced due to the immutability of blockchain records, which prevents unauthorized alterations.
• The system provides end-to-end transparency, allowing stakeholders to verify the entire product journey in real time.
• The decentralized architecture improves auditability and trust among supply chain participants without relying on a central authority.
• The model demonstrates superior resilience to data breaches and manipulation compared to traditional centralized databases.
• The evaluation confirms that blockchain-based traceability offers a more secure and reliable foundation for compliance with regulatory standards.