国外区块链供应链溯源研究现状,国外区块链供应链溯源研究

⑴ 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 shoddy 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. Combining blockchain technology with 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, making it easier to preventFalse traceability and supervision.

⑵ Speaking of blockchain traceability technology, what is this?

Blockchain traceability, this technology is used in many fields, and many companies will use this technology to Conduct a test on the source of goods to reassure consumers.
The information in the blockchain cannot be tampered with, that is to say, the information recorded on the blockchain can be used to achieve the goal of traceability as long as the source is correct.
Generally, this technology is mostly used in commodity traceability. Blockchain traceability technology can be learned in Crypto Finance.

⑶ What is blockchain and what is agricultural traceability?

Answer: 1. The connotation of blockchain

Blockchain is a distributed shared ledger and database, which have 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.

⑷ What is the impact of LOS blockchain technology on the traceability business?

Blockchain provides an excellent opportunity for the traceability business. Traceability refers to tracking and recording the circulation chain of tangible commodities or digital commodities. Through the registration of each circulation, it is possible to collect and record information from the source, trace the source of raw materials, production processes, inspection batches, logistics circulation, and anti-counterfeiting authentication. Based on the traceability information Optimize the supply chain and provide supply chain financial services and other goals. The inherent logic of applying blockchain technology to traceability, anti-counterfeiting, and optimizing the supply chain is very similar to the data storage scenario—the data cannot be tampered with and time-stamped.

⑸ WTB public chain, the king of the blockchain 4.0 era

Speaking of WTB, you may not know much about it, but when it comes to Ethereum, everyone must know All have some understanding. Ethereum has always attracted much attention since its release, and any information will touch people's hearts. The issuance of WTB on the WTO public chain is similar to that of Ethereum. Both use computer network technology to generate virtual digital currencies by inputting specific algorithm programs.

The origin of the World Trade Dollar Public Chain WTB

The World Trade Dollar Public Chain is referred to as WTB. It was launched by the Singapore World Trade Dollar Public Chain Foundation in March 2019. Although it was launched not long ago, it has been favored by thousands of people and has been unanimously welcomed by the majority of currency circles, especially by various industries and institutions.With strong support, the growth has been gratifying along the way, which means that I am the only one blooming among thousands of flowers. Nowadays, WTB public chain is widely praised in the currency circle because of its characteristics suitable for long-term investment. The WTB public chain is favored by value investors for hedging investments, and its value is equivalent to physical gold. These seem to be destined that the WTB public chain will rise to become the highest mountain in the future virtual digital currency market. .

What is the virtual digital currency of WTB public chain?

WTB public chain WTB is a blockchain digital currency. It is a multi-chain consensus, multi-chain parallel, DHT sharded storage, NDPOS multi-source hybrid consensus and cross-chain atomic operation to build high-speed A public chain for cross-chain asset circulation. The WTB public chain can not only slowly replace traditional currencies, but also provide almost zero-cost online payment for people anywhere in the world. The WTB public chain is completely decentralized and is not subject to supervision by any country or government. The relevant transaction records can be queried on the block for each transaction. It is an international payment network. Does the WTB public chain have a central agency? The answer is no, there is no central government, it is completely decentralized, and with this currency, individuals can control their own finances because it is a secure network.

How does it compare to other digital currencies?

The outstanding functions of the WTB public chain include low transaction costs, fast and simple transactions, high concurrency, high throughput, openness and transparency, and strong anonymity. Additionally, it ensures better storage efficiency compared to other currencies that are primarily based on mathematical calculations. With the strong support of various industries, with the best liquidity and a throughput of tens of millions of transactions per second (TPS), the WTB public chain has become a commercial medium that complements Bitcoin and Ethereum.

The value stability of the World Trade Yuan public chain WTB is also trustworthy. Its total amount is limited to 1.99 pieces and will never be issued additionally. That is, the value of the World Trade Yuan public chain WTB will increase with the algorithm difficulty and quantity. decreases and continues to rise. As mentioned earlier, its essence is the same as precious metals, with both high value and limited quantity. And the earlier you buy it, the greater the room for appreciation and the more profit you will make.

What about its practical application?

The WTB traceability application of the WTB public chain further demonstrates its value. Because the traditional traceability system is completely centralized, the proportion of code scanning verification is very low. There are cases in the industry that tamper with data due to their own interests. Each enterprise in the supply chain keeps accounts independently, forming an information island, and the data cannot be traced. In addition, the traceability systems of most enterprises cannot actually produce value. They only increase costs and become a semblance of engineering to cope with supervision. At the same time, because of complete centralization, it is difficult to prevent evil within the enterprise, resulting in information fraud and Leakage is the biggest drawback of traditional traceability. However, compared with traditional traceability, blockchain traceabilityThe traceability information is stored in the blockchain ledger, and each participant in the product life cycle will serve as a blockchain node to jointly maintain and store the traceability information, ensuring that once the traceability information is uploaded to the chain, it cannot be tampered with, forged, or repudiated. Form a traceability mechanism with high credibility among product participants, consumers and regulatory agencies to solve the core pain points of data fraud.

The WTB public chain uses the unique and non-tamperable distributed ledger recording characteristics of the blockchain to build a traceability system based on blockchain technology, through the sub-chains of the implemented projects and the corresponding DAPP applications. To solve the problem of information traceability, anti-counterfeiting and authenticity verification for enterprises in the process of raw material procurement, production, warehousing, circulation, distribution and terminal consumption. In the WTB traceability system of the WTB public chain, neither the companies on the chain nor the platform parties can modify the existing information on the chain. This also prevents insiders of a single company from tampering with it at low cost as before. It is costly and difficult to persuade 51% of the nodes to commit crimes at the same time, which reduces the space for fraud and profit and improves the credibility of the information.

The traceability system created by the WTB public chain enables everything to be traced back to its origins, creating a precedent for blockchain + traceability, and taking a solid step forward for blockchain to serve the public. .

So, you can pay attention to the trends of the WTB public chain for a long time, because in a sense, this move will help you quickly become a "coin circle boss" and you can enjoy it from now on WTB brings you the freedom of wealth.

⑹ What are the benefits of blockchain + supply chain in industry applications

The application prospects of blockchain in the field of Internet of Things and logistics Blockchain in the field of Internet of Things and logistics Can also be combined naturally. Through blockchain, logistics costs can be reduced, the production and delivery process of items can be traced, and the efficiency of supply chain management can be improved. This field is considered a promising application direction of blockchain.
Skuchain has created a new supply chain solution based on blockchain to synchronize commodity flow and capital flow while mitigating the problem of counterfeit goods. London-based blockchain start-up Provenance provides supply chain traceability services to enterprises. By recording the entire process information of the retail supply chain on the blockchain, it can achieve the retrieval and tracking of product materials, raw materials and product origin and history information. , improve the transparency and authenticity of information in the supply chain. A German start-up company Slock.it has made a smart lock based on blockchain technology, connecting the lock to the Internet and controlling it through smart contracts on the blockchain. Simply transfer money to the smart contract account through the blockchain network to open the smart lock. When used in hotels, guests can open the door easily. This is the real sharing economy!
Not only in supply chain management, but also in the financial field, intelligent manufacturing, culture and entertainment, financial services, medical health, and IP copyright , education, sharing economy, communications, social management, charity, social employment, and e-government can all be usedwidely used.
At present, domestic Internet and IT are involved in the blockchain industry, and have begun to develop or launch a series of solutions for basic application cases. In the current development trend, integrating blockchain technology into smart life, the Internet of Things and other fields, integrating massive physical business application scenarios, carrying out blockchain + physical industry projects, and realizing the physical transformation and upgrading of the physical industry are among the most promising. One of the representative blockchain application directions.