区块链食品溯源合约是什么,区块链 食品溯源

区块链食品溯源合约是一种使用区块链技术来追踪食品生产和供应链的技术。它可以帮助消费者确认食品的真实来源，并确保食品的安全和质量。本文将围绕食品溯源、区块链技术和食品安全三个关键词，来介绍区块链食品溯源合约。

食品溯源

食品溯源是指从食品原料的生产到最终产品的流通，通过追踪每一个环节，记录每一步操作，追溯食品的原料、加工、流通、销售等过程，来保证食品的安全和质量。食品溯源可以帮助消费者确认食品的真实来源，避免食品欺诈行为，也可以帮助企业更好地管理食品供应链，从而提高食品安全和质量。

区块链技术

区块链技术是一种分布式账本技术，它可以记录所有的交易历史，并且不可篡改。它可以用来追踪食品的供应链，记录每一步操作，确保食品的安全和质量。区块链技术可以使食品溯源更加可靠，也可以提高食品供应链的效率，从而降低成本。

食品安全

食品安全是指食品不含有有害物质，不会对消费者健康造成危害。食品安全的重要性不言而喻，它直接关系到消费者的健康和生命安全，所以必须要严格监管和管理。而区块链食品溯源合约可以帮助企业更好地管理食品供应链，从而保证食品的安全和质量。

综上所述，区块链食品溯源合约是一种使用区块链技术来追踪食品生产和供应链的技术，它可以帮助消费者确认食品的真实来源，并确保食品的安全和质量，提高食品供应链的效率，从而保证食品的安全和质量。

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『一』Blockchain technology development and implementation of blockchain projects will gradually affect our lives

Blockchain is a distributed shared accounting technology. What it does is enable all parties involved to establish a trusting relationship at the technical level.
Blockchain can be roughly divided into two levels: one is the underlying technology of the blockchain; the other is the upper-layer application of the blockchain, that is, the transformation, optimization or innovative application based on the blockchain.

『二』What is the blockchain + product traceability solution

In the heat wave of “embracing blockchain” in 2018, who can be the first to find application scenarios and launch Implemented projects have become the most important part of competition.

Among them, traceability and anti-counterfeiting are considered to be one of the most promising areas for blockchain implementation, and it is also the first place where giants compete for the implementation of blockchain technology. fields. Domestically, cities such as Chongqing and Hangzhou have taken the lead in "testing" the application of blockchain in food traceability; e-commerce giants such as Tmall and JD.com are also using blockchain technology to trace the origin of goods and prevent counterfeiting in their respective systems.

Compared with traditional traceability and anti-counterfeiting, what are the advantages of blockchain traceability? What pain points can blockchain technology solve in the traceability and anti-counterfeiting business? Can blockchain technology open a new chapter in traceability and anti-counterfeiting business?

『三』What is blockchain? In addition to food traceability, what other common applications does blockchain have?

Saving production and Distributors spend, using blockchain technology and the Internet of Things, can realize automated data collection and storage, reduce labor investment and other equipment investment; in addition, the application of blockchain technology and the Internet of Things can help manufacturers and distributors reduce various expenditure, reduce the price of agricultural products, thereby achieving customer profitability.

The key to blockchain technology is a distributed digital ledger that can store all types of information, including cryptocurrency transactions, NFT usage rights, and DeFi blocks chain.

Although any traditional database system can store this information, digital currency is unique in its complete blockchain technology. In contrast to systems maintained in core organizations by central administrators (such as Excel spreadsheets or bank database systems), blockchain databases have many identical copies stored on multiple computers that exist on the network, but these independent electronic Computers are called connection points.

The name "blockchain technology" is not a whim. Data ledgers are generally described as "chains" composed of separate "data blocks". When new data is imported into the network, a new "block" is created and added to the "chain," which involves all nodes updating their versions of the blockchain ledger so that they can also.

『四』What is blockchain traceability technology

From farm to table, blockchain traceability technology is equivalent to purchasing a liability insurance for the product

Bath crab, lean meat In recent years, there have been reports on the market of food added with white lumps (sodium formaldehyde sulfoxylate), poultry feeding hormones, whitening agents added to flour, seafood soaked in formaldehyde, etc. In addition, fruits are sprayed with ripening agents and enlarged. Agents, spraying highly toxic pesticides on green vegetables, etc. have made people change their color after hearing it. Food safety and health are becoming more and more important to us, so at this time, blockchain traceability technology emerged - a technology that allows agricultural products to be traced from Full traceability technology from cultivation to sale.

Before figuring out the blockchain traceability technology, we must first understand the difference between "traceability" and "traceability".

"Traceability" includes two meanings: logistics tracking and traceability. People often think of traceability and traceability as the same thing. In fact, what companies care about is tracking (don’t lose the goods), while consumers care about traceability (whether what I bought is safe).
The biggest feature of Sanqing Fertile Farm is its traceability, which is a powerful means to ensure food safety. It starts from the source of planting and controls the source, production and processing, cleaning and disinfection, sub-packaging, packaging, storage, transportation, sales and other links.

In short, to be precise, food traceability is a cost and an essential initial investment, which is equivalent to purchasing a "liability insurance" for your product. Maybe you won't see the effect for a year or two, but when you really use it, it may be a life-saving straw.

『Wu』 The significance of blockchain technology in anti-counterfeiting and traceability

——Yinlian’s answer:

Blockchain can realize data traceability, It cannot be tampered with because it is based on a distributed database established by cryptographic links, thus forming a data source that cannot be tampered with. Therefore, complete information recording can be achieved in the entire process of products from production to circulation, providing comprehensive product data information to regulatory authorities, allowing them to complete product quality inspection and data interconnection and mutual sharing more efficiently. In this process, blockchain can solve Four issues:

First, information cannot be tampered with, consensus is reached and trust is established. In the network nodes composed of various participants, the business process forms data records. In the product logistics, warehousing, and production links, including raw material sources, processing, assembly and other information are stored in the blockchain network, providing regulatory authorities and cooperative enterprises with Or organizations provide data information for each link.

Second, the process is open and transparent. To achieve product anti-counterfeiting and circulation in the business process, identification chips can be implanted into the product and registered on the blockchain so that it has a digital identity, and then all the information of this digital identity can be recorded through a jointly maintained ledger. Such as source, circulation, etc., to achieve verification effect.

Third, save costs and improve efficiency. The data recorded on the blockchain are kept confidential, and the regulatory authorities store, transmit, verify, and analyze product information, and transfer it between different departments to achieve unifiedOne voucher, full record, and corporate credit reporting can effectively solve problems such as multi-party participation, information fragmentation, and repeated review of circulation links.

Fourth, information sharing. The circulation of enterprise product certification relies on the interconnection of public data resources among departments and institutions such as commerce, customs, quality inspection, industry and commerce, and banks. Under the review environment established by the blockchain, all departments obtain information simultaneously and establish a supply chain-based The credit evaluation mechanism is organically connected with various supply chain platforms to disclose and share information such as credit ratings, credit records, risk warnings, illegal and dishonest behaviors, etc.

The disadvantages of traditional anti-counterfeiting traceability have become very obvious. Anti-counterfeiting traceability has always been an important scenario in blockchain applications. Typical Ruyin Chain also starts from the anti-counterfeiting traceability scenario, hoping to create a blockchain suitable for commercial use. .

Compared with the traditional centralized anti-counterfeiting traceability technology, Yinlian uses the underlying technology of the blockchain, and the merchants produce the anti-counterfeiting codes themselves, eliminating the trust problem of cheating by the middle anti-counterfeiting dealers. The main process is as follows:

『Lu』What is blockchain and what is agricultural traceability

Answer: 1. The connotation of blockchain

Blockchain is a distributed shared ledger and database, which has the characteristics of decentralization, non-tampering, full traceability, traceability, collective maintenance, openness and transparency.

2. The connotation of agricultural traceability

1. Agricultural traceability is the most complex and difficult part of food traceability. Currently, except internationally, there is no traceability based on food safety production and the entire supply chain. A fully integrated agricultural product traceability system that manages both aspects.

2. The most important thing in the construction of agricultural traceability system is "one center and three modules", which is a traceability cloud data center and three modules of producers, regulatory authorities and consumers.

3. Composition of blockchain

The blockchain system consists of data layer, network layer, consensus layer, incentive layer, contract layer and application layer.

"Qi" With this certification (ant blockchain traceability), does it really mean it is authentic?

No, it can only prove that the product has a traceability To the identification (ID), if it is assumed that all counterfeit and shoddy products cannot obtain this identification, then all genuine products have a traceable ID.

And the binding between a traceability logo and a product is not unique and unbreakable! The key is that the logo is on the block, but the product is not! In other words, a logo can also be used for counterfeiting. Increasing the difficulty of marking can raise the threshold for counterfeiting, but it cannot completely eliminate it!

Blockchain can only protect digital assets. If you want to protect commodities, the higher the social cost, the more difficult it will be to overcome it. Because commodity protection requires relevant social investment. In fact, the fact that this matter is attached to the concept of block chain is pure speculation! There are no block chains, and the classic technology stack has many solutions for traceability identification!

Is blockchain + anti-counterfeiting traceability necessary?

Blockchain is a distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computers The new application of the technology is a series of data blocks generated using cryptographic methods. Each data block contains information about a change of hands or transaction.

It can be used in the food sector so that each party in the supply chain (producer, processor and distributor) can provide traceability information about their specific role (such as date, location, farm construction, distribution channels).

At present, among the many application fields of blockchain, blockchain food traceability and anti-counterfeiting is currently one of the most promising blockchain fields.

The reasons can be summarized in three aspects:

First, for consumers, this technology will meet their growing demand for food quality transparency;

< p>The second is that for food suppliers (breeders), this is a means to demonstrate the high quality and professionalism of their products;

The third is that the technology is easy to promote and use, and the outer packaging of each product Each will include a QR code that consumers can scan using their smartphones, eliminating the need to purchase additional equipment.

『8』 Use blockchain to achieve full traceability of goods

Currently, the application of blockchain technology in new retail is mostly discussed in the supply chain - —That is, the full traceability of goods can be achieved through blockchain technology, thereby preventing counterfeit and inferior goods, or when problems occur, the source of the problem can be quickly found. The basic framework for the application of blockchain technology in the supply chain (Figure 1) is that by using blockchain technology, we can solve the problem of consistency and traceability of the circulation of goods at different nodes in the supply chain. However, due to the It is a physical asset, which is different from virtual assets, so the digitization of goods needs to be realized first.

To realize the digitization of physical assets, a lot of work needs to be done, and the authenticity of the on-chain needs to be ensured. Even in certain scenarios, the on-chain and off-chain need to be synchronized at all times. These are application areas. Costs and Difficulties of Blockchain Technology. One of the current feasible ways to solve this problem is to combine it with the Internet of Things. Specifically, it is to apply RFID technology to achieve the identification of goods and a certain degree of intelligence.

RFID technology has long been used to improve the transparency of the supply chain. Now combined with blockchain technology, it can ensure the transparency and security of mapping items from the physical world to the virtual world. Because blockchain technology can register the transfer of goods or commodities on the ledger as a transaction to determine the various participants, product origin, date, price, quality and other relevant information related to the management of the production chain. In addition, due to the decentralized structure of the ledger, it is impossible for any party to have ownership of the ledger or manipulate the data for personal gain. Furthermore, because transactions are encrypted and immutable, the digital ledger is difficult to compromise. If you willThe combination of blockchain technology and RFID technology can not only combat counterfeit goods, but also improve customers' trust in the product supply chain.

On the one hand, whenever the custody of a product changes, products with RFID tags need to be scanned. Each scan will update the RFID chip and backend password, and capture and update geographic information in the system. On the other hand, when consumers purchase goods, they can scan the RFID tag with a smartphone equipped with an RFID reader to view the supply chain history to ensure that the product is genuine. When scanning, product information such as origin, manufacturer, appearance, and storage location changes will also be provided. Because each item carries a different RFID tag, which changes dynamically with updates and password changes in the supply chain, copying or counterfeiting is eliminated. Opening the product or removing the label renders the label unusable and therefore cannot be used for illegal purposes.

In addition, with the help of the Internet of Things, automatic uploading of data from various entities in the supply chain can be achieved. At the same time, blockchain technology and smart contracts are used to completely preserve the data of all entities in the entire supply chain, ensuring that the data is open, transparent, traceable and cannot be tampered with, which facilitates anti-counterfeiting, traceability and supervision.

『玖』How is the anti-counterfeiting traceability application of blockchain implemented?

The three major characteristics of blockchain are well known, which are decentralization, openness and transparency and inaccessibility. tamper. The non-tamperable feature enables blockchain to be used in many places. Such as product traceability, anti-counterfeiting, privacy protection, etc.

Because the production process it traces is all uploaded manually, so even if the data cannot be tampered with, the authenticity of the data cannot be guaranteed, and it still cannot be Solve substantive issues.

In general, although blockchain has brought great benefits, it is not perfect after all. However, blockchain technology has advanced the development of the times, and I believe its future is worth looking forward to.