# Wire and Cable Quality Traceability System Based on Industrial Internet of Things and Blockchain
## 1 Introduction
[6] built an electronic product traceability system based on blockchain and ORS technology to solve problems such as easy tampering and insecurity of electronic product production and supply chain process information. [PERSON] et al. [7] proposed a method of managing IIoT identification data through blockchain technology, which solved the problems of heterogeneity, different owners, and remote identification data in IIoT identification management. [PERSON] et al. [8] constructed a full traceability management system for seafood quality and safety based on the application of information technology in quality traceability to realize the traceability and control of seafood quality information. In the United States, in terms of the quality and safety of aquatic products, enterprises importing aquatic products are required to provide quality and safety data before entering the market, and a series of quality traceability systems have been established [9]. [PERSON] [10] improved the dual-storage design of \"database + blockchain\" to solve the problem of low query efficiency of applying blockchain technology in a fruit and vegetable quality traceability system. [PERSON] et al. [11] combined blockchain and RFID technology to build a wood supply chain traceability system within the blockchain architecture to realize the online traceability of wood from standing trees to users. [PERSON] [12] investigated identity resolution and blockchain technology and proposed a new supply chain management solution. [PERSON] et al. [13] analyzed an Internet digital identity management solution combined with the blockchain in the context of the Internet of Things. [PERSON] et al. [14] proposed a framework for traceability in the textile supply chain. They designed a sequence diagram to demonstrate the interaction and information exchange between the participants in the supply chain when tracking information is required. Concerning interaction and information exchange between the participants in the supply chain, [PERSON], [PERSON] et al. [15] proposed an Interplanetary File Storage System (IPFS) to address the issues of credibility and transaction process accountability arising from blockchain-based agricultural product quality traceability. [PERSON] et al. [16] studied and designed a benefit-sharingmechanism, through which manufacturers can share with suppliers reduced recall liability due to traceability improvement to promote the improvement of traceability. Although many scholars have made a lot of studies on quality, safety, and traceability in the production and supply chain of different industrial, agricultural, fishery, and forestry products, taking IIoT identity resolution and the blockchain as the technical entry point, the specific technology of the integration of identity resolution and blockchain has not been in-depth [17; 18]. No particular application method for the integration of the two has been given. To promote the mutual circulation of product information and data, make the query more convenient, and ensure the safety of information and data, the contributions of this paper are as follows: (i) The complementary advantages of IIoT identity resolution and blockchain technology for product quality traceability are analyzed. (ii) According to the actual product quality traceability needs of the cable manufacturing industry, a set of wire and cable product traceability system methods based on the integration of an IIoT identity resolution system and blockchain technology is proposed to solve the problems of insecure data transmission, weak quality control, and information islands in the process of cable quality traceability. (iii) We developed and tested a cable quality traceability system based on identity resolution and blockchain technology to provide theoretical and technical support for realizing data sharing among all parties in the cable industry chain.