A Blockchain Oracle-Based API Service for Verifying Livestock DNA Fingerprinting

【Author】 Pasdar, Amirmohammad; Lee, Young Choon; Ryan, Paul; Dong, Zhongli

【Source】SERVICE-ORIENTED COMPUTING - ICSOC 2022 WORKSHOPS

【影响因子】

【Abstract】Blockchain, a type of distributed ledger technology, has revolutionized the digital economy such as cryptocurrencies and supply chain management with its transparency, immutability, and decentralization properties. In addition, smart contracts are introduced to the blockchain to provide programmability removing third parties for administration. Although promising, blockchains and smart contracts are closed technologies meaning they have no interaction with the external world where real-world data and events exist, i.e., off-chain data. It becomes more challenging when the off-chain data is unstorable onto the blockchain due to data volume and privately maintained by third parties for security and confidentiality. In this paper, we address the problem of enabling a private blockchain platform to access privately owned sensitive off-chain data (i.e., DNA fingerprinting). This off-chain data is used for the traceability of products (i.e., products' origin) along the supply chain with a real-world livestock use case. To this end, we present a livestock blockchain oracle (LBO) as a service to mitigate the accessibility issue and automate the process of verifying purchasable products for livestock DNA fingerprinting verification. We have conducted an evaluation study using real-world livestock data from third-party service providers. Results based on the livestock product information and registered DNA service providers show that LBO is a reliable and responsive decentralized oracle blockchain for verification.

【Keywords】Blockchain; Smart contracts; Blockchain oracles; DNA fingerprinting service

【发表时间】2023

【收录时间】2023-06-28

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