# Blockchain Traceability Process for Hairy Crab Based on Cuckoo Filter
## 1 Introduction  
Smart agriculture is highlighted in China's Rural Revitalisation Strategic Plan (2018-2022) as a key part of the country's national strategic plan, aiming to improve agricultural productivity and food safety through technological innovation [1]. With consumers' increasing concern for food quality and traceability [2, 3, 4, 5, 6, 7, 8, 9, 10], Yangcheng Lake hairy crabs, as a high-quality regional brand, are facing the challenge of counterfeiting phenomenon for their market value and brand reputation [11, 12, 13]. This paper takes Yangcheng Lake hairy crabs as the research object and explores the application of blockchain technology in enhancing its brand value and market competitiveness to meet consumers' demand for food safety and traceability. Through blockchain technology, the whole chain of traceability from breeding to sales is realised to ensure the authenticity and non-tamperability of information and enhance consumer trust.  
The literature [14] focuses on the latest applications of blockchain technology in the agricultural sector, especially for fresh produce enterprises. The interactions between firms' strategies of joining platform blockchain technology and channel invasion decisions are explored. The results show that the inclusion of blockchain technology can improve consumer trust and increase product demand. The study provides insights for fresh produce companies to make strategic decisions, highlighting the potential of blockchain technology to enhance supply chain management and increase consumer trust. The authors of [15] explore the application of blockchain technology in the supply chain of agricultural products and analyses the impact of companies joining blockchain on e-commerce platforms on theirsales strategies. The study points out that blockchain technology enhances consumer trust by improving product traceability, which in turn may increase the demand for agricultural products. Meanwhile, whether enterprises set up third-party shops on e-commerce platforms and their adoption decisions of blockchain technology are influenced by consumers' sensitivity and trust in product freshness. The authors of [16] focus on enterprises in the agricultural supply chain in Vietnam. It provides an in-depth analysis of the main barriers faced by enterprises in adopting blockchain technology and examines how the lack of government regulation, insufficient system scalability and speed, large resource and capital requirements, and lack of stakeholder trust combine to influence their strategic choices. In addition, the study proposes an order to prioritise these barriers to accelerate the adoption of blockchain technology in Vietnam's agricultural supply chain. The authors of [17] delve into the role of blockchain technology in enhancing the performance of traceability systems in agri-food supply chains. By comprehensively analysing 78 relevant studies, it focuses on the application of BCT in tracking key food categories such as fruits, vegetables, meat, dairy products, and milk. It reveals how BCT-based traceability systems can achieve decentralisation, data immutability, transparency, and reliability while highlighting the key role of automated processes in monitoring real-time data and decision-making.