动物检疫是食品安全监管的重要环节，动物检疫电子出证则是一项保障食品安全的重要工作。动物检疫证是畜牧、家禽及其它肉类产品安全走向市场流转的凭证，具备查询检疫信息快、全程追踪动物及产品流向、疫病追溯及责任管理优势，关系食品安全与居民健康。为提高动物检疫证防篡改和防伪溯源功能、消除换证过程操作风险和食品安全隐患，依托区块链技术去中心化、防篡改、公开独立、可追溯等特性，采用Hyperledger Fabric底层技术框架，设计了基于区块链技术的动物检疫区块链应用系统，搭建了一条联盟链网络，连接养殖场、屠宰场、经销门店和监管方，遵循业务流程的链上流转，检疫员、养殖场等相关方在区块链账本上共同记录票据信息和交易信息。去中心化、无法篡改，保证了出证换证过程的安全透明，动物防疫检疫监管部门可获得监管节点对检疫证出证换证全流程进行监管，有效提升检疫证应用的安全性和可追溯性，减少过程漏洞和提升风险管控能力。这套基于区块链技术的动物检疫证系统利用区块链提供可信、可靠的出证、换证服务，将“技术信任背书”与“存证信任背书”相融合，实现“双信合一”，区块链技术正在成为保障肉类食品安全的重要科技力量。

Animal quarantine is a crucial link in food safety supervision; electronic certification of animal quarantine is highly important toward ensuring food safety. An animal quarantine certificate confirms the safe market conditions for animal husbandry, poultry, and meat products. Such certification efficiently presents information about the state of quarantine; it provides comprehensive tracking of the flow of animals and their products in addition to disease tracing and management responsibility. That certification is vital for food safety and community health. The present study examined ways to enhance anti-tampering and anti-counterfeiting measures with respect to the traceability function of animal quarantine certificates; it aimed to eliminate operational risks and potential food safety hazards during the process of certificate replacement. This paper did so by employing the features of blockchain technology (such as decentralization, anti-tampering, openness, independence, and traceability): it utilized the underlying technical framework of Hyperledger Fabric. An application system for animal quarantine blockchain was designed. A consortium blockchain network was established to link farms, slaughterhouses, distribution stores, and regulators; the chain flow of business processes was followed; quarantine personnel, farms, and other relevant parties jointly recorded invoice and transaction information on the blockchain ledger. Decentralization and inability to tamper with information ensure the safety and transparency of the process of issuing and changing certificates. The department responsible for supervising animal epidemic prevention and quarantine can acquire the supervision node to monitor the entire process of issuing and changing quarantine certificates. This system effectively improves the security and traceability of quarantine applications; it reduces process vulnerabilities, and it improves risk management and control capabilities. Using blockchain technology, this system provides credible, reliable animal quarantine certificates in addition to certificate replacement services. The system integrates technical trust with deposit trust. Thus, blockchain technology is becoming an important technological means to ensure the safety of meat products.