Trustworthy Traceability of Quality and Safety for Pig Supply Chain Based on Blockchain

Pork safety incidents happened frequently in China even if the traditional traceability system was established, which declines the consumers’ confidence rapidly. Thus, this paper aims to explore a trustworthy traceability of quality and safety for the pig supply chain. We then proposed a framework for traceability of pig supply chain based on blockchain. In our research, we found that HACCP is suitable for screening key information in every link of pig supply chain, and GS1 can achieve the series connection of information on the pig supply chain, which reduces the isolated information and increases the transparency of the supply chain. However, information provided by traditional traceability system failed to guarantee the authenticity and credibility because of its hidden troubles such as monopoly, corruption, counterfeit, hacker attack and so on. To tackle this problem, we verified the validity and credibility of pig traceability information by deploying the smart contract on a consortium blockchain and analyzing its operating mechanism from the perspective of consumers.

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