A Traceability Approach for Agarwood Based on Distributed Identity and Smart Contracts

Hainan agarwood is a valuable commodity with a diverse range of applications, including use in spices, medicines, and cultural artifacts. This has led to the emergence of a growing market for the product. Nevertheless, several challenges persist within the Hainan agarwood industry, including inconsistent product quality, recurrent instances of market fraud, and an opaque supply chain. In order to address these issues, we put forth a proposal for an agarwood traceability method based on Distributed Identity (DID) and smart contracts. The implementation of distributed identity technology enables the assignment of a unique digital identity to each entity within the industrial chain, thereby facilitating enhanced accountability and accurate traceability. Concurrently, smart contract technology is utilized across all links of the industrial chain to achieve comprehensive process information recording and retrieval. This method guarantees that the data associated with each link in the agarwood industry chain is stored on the blockchain in a manner that is immutable. The proposed method effectively identifies counterfeit products while not relying on a single organization, thus reducing the risk of single-point failure and abuse of power, and improving the fairness and credibility of the system.