区块链在食品工业的应用有哪些,区块链在食品工业的应用论文
近年来，区块链技术在食品工业的应用越来越广泛，为食品安全和供应链管理带来了巨大的变革。下面将介绍区块链技术在食品工业的三个关键词：食品追溯、智能合约和供应链金融。
食品追溯：食品追溯是指从原料到成品，从农场到消费者，实现食品全生命周期的跟踪和记录，包括原料的来源、生产过程中的检测、产品的运输、销售等。区块链技术可以将所有信息记录在区块链上，提高食品追溯的可信度，提高食品安全性。
智能合约：智能合约是指使用区块链技术创建的一种电子合同，它可以自动执行两方之间的协议。在食品工业中，智能合约可以帮助企业实现质量控制、生产过程的跟踪和记录、采购合同的执行等。智能合约可以有效提高食品质量，保证食品安全。
供应链金融：供应链金融是指企业通过金融机构提供的金融服务，以改善供应链管理，提高供应链效率。在食品工业中，供应链金融可以帮助企业提高生产效率，改善资金周转，减少货物流通时间。同时，供应链金融可以提高食品安全，确保食品的可持续发展。
总之，区块链技术在食品工业的应用可以改善食品安全，提高食品质量和供应链效率，从而保证食品的可持续发展。
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Ⅰ What is blockchain? In addition to food traceability, what other common applications does blockchain have?
Save production and distributor costs by using blockchain technology and the Internet of Things can realize automated data collection and storage, reducing 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 expenditures and reduce the price of agricultural products, thus Achieve 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 a core organization 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 are the same.
Ⅱ How to define blockchain and what are the application scenarios of blockchain?
Nowadays, many people think that blockchain is a universal technology that can do anything. It is somewhat different. Blockchain technology is a myth!
Regarding the definition of blockchain technology, American scholar Melanie Swann defined blockchain technology as an open, transparent and decentralized technology in her book "Blockchain: A New Economic Blueprint and Introduction" database.
Definition of Blockchain: Narrow VS Broad
As for the application scenarios of blockchain technology, it is natural to combine the differences between blockchain and other technologies. In terms of system characteristics.
Blockchain technology features include:
Blockchain is a global A database storage system that can be operated collaboratively in various places is different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (a characteristic of centralization). Blockchain believes that anyone with the ability to set up a server can participate. Nuggets from all over the world have deployed their own servers locally and connected to the blockchain network to become a node in this distributed database storage system; once joined, the node enjoys exactly the same rights as all other nodes and obligations (decentralized, distributed characteristics).
At the same time, for the blockchainPeople who carry out services can perform read and write operations on any node in this system. Finally, all nodes around the world will complete synchronization one after another according to a certain mechanism, thereby achieving complete data of all nodes in the blockchain network. consistent.
At the beginning of this year, the term blockchain began to enter everyone’s lives. From national leaders to aunts who dance square dances, everyone knows this term. This term is widely known by Bit Brought by coins.
As we all know, the first few dozen bitcoins could only be exchanged for one pizza. At its peak, it was more than 20,000 US dollars each, which has skyrocketed by more than a thousand times, which has also benefited a large number of wealthy people. Currently, there are blockchain The virtual currency generated by technology is gradually entering into everyone's life, and many people have joined the ranks of currency speculation. I often hear people say that if you buy the right currency a hundred times, a bicycle will become a sports car, and one coin will turn a young model. You can imagine how many of them are involved. Attractive.
Since 2008, various games applying blockchain technology have also become popular, such as development games (Network Letts Dog, 360 Block Cat), mining games (NetEase Planet, Virtual Earth, Gongxinbao), these are attracting everyone to join in the name of blockchain, and of course there are some that are really reliable, which requires everyone to identify them carefully.
Blockchain is a distributed ledger (database) that connects data blocks in an orderly manner and cryptographically ensures that it cannot be tampered with or forged. technology. In layman's terms, blockchain technology can achieve openness, transparency, non-tampering, non-forgery, and traceability of all data information in the system without the need for third-party endorsement. As an underlying protocol or technical solution, blockchain can effectively solve the problem of trust and realize the free transfer of value. It has broad prospects in the fields of digital currency, financial asset transaction settlement, digital government affairs, and certificate deposit and anti-counterfeiting data services.
Digital currency
After experiencing physical objects, precious metals, banknotes and other forms, digital currency has become the development direction of the digital economy era. Compared with physical currency, digital currency has the characteristics of easy portability and storage, low circulation cost, convenient use, easy anti-counterfeiting and management, breaking geographical restrictions, and better integration.
Bitcoin technically implements an electronic cash system in which both parties to the transaction can directly transfer funds to each other without the need for third-party transfer or arbitration. In June 2019, the Internet giant Facebook also released a white paper on its cryptocurrency Libra. Whether it is Bitcoin or Libra, the underlying technology they rely on is blockchain technology.
my country began the development of central bank digital currency as early as 2014. my country's digital currency DC/EP adopts a two-tier operating system: the central bank does not directly issue digital currency to the public. Instead, the central bank redeems the digital currency to various commercial banks or other legal operating institutions, and then these institutions exchange it for public supply. its use. 2019 8At the beginning of the month, the central bank held a video conference on work for the second half of the year. The meeting called for accelerating the pace of research and development of the national legal digital currency.
Financial asset transaction settlement
Blockchain technology naturally has financial attributes, and it is causing disruptive changes in the financial industry. In terms of payment and settlement, under the blockchain distributed ledger system, multiple market participants jointly maintain and synchronize a "general ledger" in real time. Payment, clearing, and settlement that currently take two or three days can be completed in just a few minutes. tasks, reducing the complexity and cost of cross-bank and cross-border transactions. At the same time, the underlying encryption technology of the blockchain ensures that participants cannot tamper with the ledger, ensuring that transaction records are transparent and safe. Regulators can easily track transactions on the chain and quickly locate high-risk capital flows. In terms of securities issuance transactions, traditional stock issuance processes are long, costly and complex. Blockchain technology can weaken the role of underwriting institutions and help all parties establish a fast and accurate information exchange and sharing channel. Issuers handle issuance on their own through smart contracts, and regulatory authorities With unified review and verification, investors can also bypass intermediaries and conduct direct operations. In terms of digital bills and supply chain finance, blockchain technology can effectively solve the financing difficulties of small and medium-sized enterprises. It is difficult for current supply chain finance to benefit small and medium-sized enterprises in the upper reaches of the industrial chain, because they often do not have direct trade relations with core enterprises, and it is difficult for financial institutions to evaluate their credit qualifications. Based on blockchain technology, we can establish a consortium chain network covering core enterprises, upstream and downstream suppliers, financial institutions, etc. The core enterprises issue accounts receivable vouchers to their suppliers. After the bills are digitized and uploaded to the chain, they can be uploaded to the supplier Transfer between them, each level of supplier can realize the corresponding amount of financing with the digital bill certificate.
Digital Government Affairs
Blockchain can make data run and greatly streamline the service process. The distributed technology of blockchain can allow government departments to concentrate on one chain, and all service processes are delivered to smart contracts. As long as the service personnel pass the identity authentication and electronic signature in one department, the smart contracts can be automatically processed and transferred, and the subsequent steps can be completed in sequence. All approvals and signatures. Blockchain invoice is the earliest application of domestic blockchain technology. The tax department launched the "Tax Chain" platform for blockchain electronic invoices. The tax department, the issuer, and the payee join the "Tax Chain" network through unique digital identities, truly realizing "instant invoicing for transactions" and "instant reimbursement after invoicing" - in seconds Level invoicing and minute-level reimbursement accounting significantly reduce tax collection and management costs, and effectively solve problems such as data tampering, over-reporting of one ticket, and tax evasion. Poverty alleviation is another practical application of blockchain technology. Utilize the characteristics of openness, transparency, traceability, and non-tampering of blockchain technology to achieve transparent use, precise investment, and efficient management of poverty alleviation funds.
Evidence-based anti-counterfeiting
Blockchain can prove the existence of a file or digital content at a specific time through hash timestamps, and it is open, non-tamperable, and traceable. Provides perfect solutions for judicial forensics, identity certification, property rights protection, anti-counterfeiting and traceability, etc.. In the field of intellectual property, the digital signature of blockchain technology and on-chain certificates can confirm the rights of text, pictures, audio and video, etc., and create and execute transactions through smart contracts, allowing creators to regain pricing power and preserve data formation in real time. The evidence chain covers the three major scenarios of rights confirmation, transaction and rights protection. In the field of anti-counterfeiting and traceability, blockchain technology can be widely used in various fields such as food and medicine, agricultural products, alcohol, and luxury goods through supply chain tracking.
Data services
Blockchain technology will greatly optimize existing big data applications and play a huge role in data circulation and sharing. In the future, the Internet, artificial intelligence, and the Internet of Things will generate massive amounts of data. The existing centralized data storage (computing model) will face huge challenges. Edge storage (computing) based on blockchain technology is expected to become a future solution. Furthermore, the non-tampering and traceability mechanism of blockchain ensures the authenticity and high quality of data, which becomes the basis for all data applications such as big data, deep learning, and artificial intelligence. Finally, blockchain can realize multi-party collaborative data calculations while protecting data privacy, and is expected to solve the problems of "data monopoly" and "data islands" and realize the value of data circulation. In response to the current blockchain development stage, in order to meet the blockchain development and application needs of general business users, many traditional cloud service providers have begun to deploy their own BaaS ("Blockchain as a Service") solutions. The combination of blockchain and cloud computing will effectively reduce enterprise blockchain deployment costs and promote the implementation of blockchain application scenarios. In the future, blockchain technology will also play an important role in many fields such as charity, insurance, energy, logistics, and the Internet of Things.
The three words "blockchain" were completely ignited during the Spring Festival that just passed, and the limelight overshadowed everything else. Some people said that this was the arrival of a new era, and the past It has become a classic, and some people say that it is all hype and is ultimately a bubble.
In fact, blockchain technology is not a new concept. It has been applied to many industries, such as electronic signatures, as early as the past two years. Recently, the third-party electronic signature platform eShanbao revealed the latest progress of blockchain applications to NewSeed.
Currently, blockchain technology is mainly used in e-signing products for certificate deposit and certificate issuance. The application scenarios include copyright protection and online signing. , web page forensics, phone recording, email storage of evidence, etc.
Take the rights protection of online works as an example. Since online rights protection generally adopts the method of collecting evidence after the fact, real-time confirmation of rights is not carried out in the process of evidence generation, so the entire confirmation process is difficult. The copyright process is time-consuming, difficult and costly to obtain evidence, and extremely difficult to prove and trace the source. It cannot meet the characteristics of rapid dissemination and large quantity of online works.
eXianbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication, solidifies the electronic data generated in the process in real time, and adds time source services to online works synchronized with the National Timing Center. Stamp a legally valid time stamp to prove that the electronic file has not been tampered with during a certain period of time. Blockchain technology can establish point-to-point trust in the network, ensuring that all blockchain nodes can record complete copyright confirmation and transaction records, and can trace their origins, truly realizing anti-repudiation and anti-tampering, and realizing a kind of distribution. trust infrastructure.
Founder and CEO Jin Hongzhou believes that the application of decentralized blockchain technology has greatly improved the efficiency of data storage and certification, and The credibility of the identity of the parties reduces the cost of trust, but it cannot replace the original centralized public key encryption technology. The two should complement each other. Through the combination of the two, it can provide users with real-time and reliable Confirmation plan.
Next, e-Shanbao will also focus on building a smart contract platform based on blockchain technology. Jin Hongzhou said that data storage, Issuing certificates is only a relatively superficial application based on blockchain technology. It is the first step to implement blockchain technology, and the realization of real smart contracts is the second step. "Smart contracts cannot simply be understood as electronic contracts. They refer to a process, from the conclusion of the contract to the confirmation to the final execution." Jin Hongzhou explained.
From a technical perspective, blockchain is not a brand-new technology, but a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanisms, encryption algorithms, and smart contracts. Specifically, blockchain technology is a technical solution that collectively maintains a reliable database in a decentralized, high-trust manner.
Due to its advantages such as "decentralization", "distributed data storage", "traceability", "anti-tampering", and "openness and transparency", blockchain technology can effectively solve data problems. By establishing a trustworthy data management environment, we can prevent and avoid various data management problems such as data fraud, tampering, and loss, and promote the efficient sharing and application of data. In the process of practice and exploration, the application scope of blockchain technology continues to expand, especially in the field of public resource transactions, and continues to empower public resource transaction management services.
Facilitate transaction data sharing and transaction witnessing
Facilitate transaction data Share
Currently, the data of different trading centers are not interoperable, and the subject information of different trading centers needs to be entered repeatedly. It is difficult to verify the off-site performance provided by the bidders during the bid evaluation process. It is difficult to troubleshoot the same person repeatedly serving as project manager.Issues such as low cost of breach of trust. Establishing a cross-regional subject database based on blockchain can well alleviate the above problems.
The distributed ledger feature based on the blockchain can effectively ensure the real-time or quasi-real-time sharing of data, and can reduce the repeated entry of subject information; the use of blockchain information that cannot be tampered with can ensure the data circulation process on the chain. The authenticity of the bidders in the regional alliance is directly obtained from the on-chain data, making it impossible to hide the fake performance. At the same time, the sharing of bidding behavior data through the blockchain provides a data basis for the development of "joint punishment of dishonest enterprises".
Blockchain-based transaction witness
"Guiding Opinions on Deepening the Integration and Sharing of Public Resource Trading Platforms" ( The State Office Letter [2019] No. 41) pointed out the need to optimize services such as witnessing, venues, information, files, and expert extraction. However, at present, public resource transaction process witnessing is mainly based on manual on-site witnessing, which has limited witnessing intensity, high occupation of human resources, and limited witnessing effect. Due to its centralized characteristics, the traditional digital witness system is prone to data tampering, and the data is easily damaged or lost during the storage and migration process, which has certain flaws in terms of security and usability.
Utilize the distributed, difficult to tamper, and traceable characteristics of the blockchain to solidify and store the data generated in each transaction link, and accurately record the data generated through time stamp technology, summary algorithm, and electronic signature technology. Time, content, data source. According to the technical characteristics of the blockchain, simple structured data can be directly saved on the blockchain. For unstructured layout files, videos, audio and other large files, the summary information and original files can be saved through the blockchain. Save via a distributed file storage service. When there are disputes or problems in a transaction, the blockchain can provide a set of credible transaction process data and clarify the responsibilities of all parties involved in the transaction. Achieve the goals of risk prevention and control in all aspects, traceability of the entire process, and improvement of all-round services.
Promote the rationalization of electronic guarantee rates
Promote financial services and corporate financing for bidding companies
Promote the rationalization of electronic guarantee rates
At present, electronic bidding deposit guarantee letters have certain applications in the field of bidding, solving the problem of bidding deposit funds for bidding companies. Occupancy issues. However, because financial institutions currently do not have reliable historical bidding behavior data of bidders, they are unable to judge the default risks of different bidders. As a result, the guarantee services charged to bidders adopt fixed rates, which makes a small number of bids with high default risks The cost of personal guarantee is allocated to most bidders with low default risk, which increases the guarantee rates for most bidders to a certain extent.
Whether to use an electronic letter of guarantee is currently up to the bidder.The main choice, and the rate is the main selection basis for bidders. If the bidder performance records are aggregated and shared through the blockchain, the performance risks of different bidders are analyzed, and different guarantee rates are provided for different bidders, it will not only reduce the risk of financial institutions, but also provide different guarantee rates for different bidders. It can also reduce the use costs of most bidders and promote the use of bid guarantees. To a certain extent, it can also encourage bidders to abide by their promises and maintain the order of the bidding market.
Promote financial services for bidding companies
The bidding behavior of bidders is scattered in various trading centers, and the data is simply aggregated In a centralized information system, there is a risk of data tampering (untrustworthy), and valuable bidder transaction behavior data cannot be gathered and shared safely and reliably. Through blockchain technology, bidders from multiple trading centers are gathered, and historical bidding, winning bids, defaults, violations and other behavioral records provide data support for financial institutions to evaluate the bidders' credit in the bidding sub-sector.
Solving the financing problems of successful bidders
Traditional corporate loans mainly evaluate the company's solvency: collateral, audit There are requirements for accurate financial statements and sustained profitability, but most small and medium-sized enterprises cannot provide these "proofs" at all. Difficulty and expensive financing have become problems faced by many small and medium-sized enterprises in bidding activities. Using the methods of the past will no longer work. To solve the financing difficulties of small and medium-sized enterprises, we can only rely on new technologies and new tools. With the help of the non-tamperable characteristics of blockchain, primary business data from multiple trading centers are gathered, and big data analysis technology is combined to build a portrait of a credible bidder. On the one hand, it improves the risk control level of financial institutions and taps high-quality bidding companies. On the other hand, it lowers the loan threshold for bidding companies and optimizes the service experience.
Drawing on the supply chain finance model, the bidder is a core enterprise with good credit in government departments, national enterprises and institutions, and the winning contract obtained by the winning bidder as a supplier is considered by financial institutions to be a high-quality asset. Apply for a loan from a financial institution. Under the traditional paper-based model, there is a risk of order and contract fraud and the process is cumbersome. Centralized information systems require operators to have strong authority. The distributed ledger and difficult-to-tamper characteristics of the blockchain will help solve the above problems. The contract signing between the tenderer and the bidder and the subsequent financial service links will be realized on the blockchain, which not only solves the problem of data trustworthiness but also reduces the risk of corruption. The entire system relies on a centralized authority.
Through further analysis, we found that credit sales are currently prevalent among domestic enterprises, and the upstream suppliers of the winning bidder have a large funding gap. The credit of the bidder can only be passed to the winning bidder (the winning contract cannot be split or transferred), and the upstream suppliers Business owners are unable to obtain high-quality loans from financial institutions. If the winning contract is converted into a "pass" on the chain, the "pass" can be split, and the winning bidder holding the "pass" can pay part or all of the voucher to the upstream supplier, making it possible to discount and finance. "Certificate" on the chain"It can be split and transferred from first-level suppliers to second-level (and multi-level) suppliers, so that the credit of core enterprises can be transferred to multi-level suppliers. The problem of supplier fund shortage caused by credit sales has been solved and the business environment has been improved; through The blockchain transfers value and greatly shortens the financing cycle; reducing supplier loan costs is conducive to reducing the production costs of raw materials or intermediate products, and ultimately increases the bidder's profit margin and indirectly reduces the cost of the bidder.
Regarding blockchain, we can imagine it as a decentralized management model and technical processing method.
Let me give you an example. There are five people in your family. You have never had a good idea of how to arrange work and handle family relationships.
So, you and your family discuss it together and simply use voting to solve the problem.
Then this way of voting to solve problems can be called the most elementary blockchain.
Decentralization solves problems.
Blockchain can What are the application scenarios?
In fact, many of our families and many organizations use blockchain management every day
However, this kind of block for organizational relationships Blockchain applications cannot generate economic value.
What economic applications can blockchain have?
The first one is used in tax deposit certificates, bank transfers, etc.
p>Make full use of the traceability function of the blockchain so that all records can be retrieved and queried at any time
The second type is applied to business operations Management
Enterprises using blockchain management can better solve enterprise development problems, allowing enterprises to develop faster and make more money.
Summary: Blockchain The application scenarios include taxation, bank transfers, etc., and can also be applied to business operations.
The characteristics of blockchain are distributed accounting and decentralization, but the ultimate purpose It is to make people get along more equally. Technology is meaningful only when it serves human values, and technology that meets the needs of human values will develop. Therefore, blockchain is in line with human beings’ pursuit of freedom and equality, so it has become mainstream The trend is unstoppable.
Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free global social network Platform. Due to decentralization, your chat communication information is peer-to-peer and cannot be viewed by others. In other words, your every word and deed is no longer recorded and recorded at any time like it is now on WeChat, QQ, and Facebook. Check to get rid of the trouble of surveillance.
In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can beCompleted on multiple nodes and confirmed on multiple nodes, making it difficult (almost impossible) to delete.
At present, blockchain is still in its infancy, and the technology is not mature enough, but it is also a better time to enter.
Blockchain is a decentralized technology. Blockchain can be applied to all products currently covered by the Internet.
The most popular application industry at present is the financial industry.
An application that has been implemented is product traceability. Alibaba and JD.com are already using blockchain technology to fully trace the origin of some of the products they sell. Consumers can trace the origin of the purchased products. There are also many blockchain applications in the digital advertising industry. Since digital advertising traffic fraud causes losses of tens of billions of dollars every year, there are already blockchain application projects based on digital advertising, such as DCAD, which is based on blockchain. The digital advertising application of blockchain technology mainly solves the problem of traffic fraud
In the future, as the application of blockchain technology becomes more mature, it will be applied in many industries, creating a new ecosystem based on technological trust. Mode
What is blockchain If you explain blockchain in non-technical terms, blockchain is a place where data is stored. However, the data stored in the blockchain is safe and reliable and does not need to be managed by anyone. Therefore, in the Internet, a place where data and information are exploding, having such a place will be like a magical treasure land.
If you ask what the blockchain can do, it is better to say what applications require the use of the blockchain. As mentioned earlier, blockchain is a safe place, so wherever data needs to be protected securely on the Internet, blockchain technology needs to be used. For example:
Because the use of blockchain technology can better protect the data of policyholders, in today’s Internet, data is value and wealth, so value protection and value transmission are the future development directions of the Internet. And blockchain technology can really do just that.
If there are any deficiencies, you are welcome to comment and correct me.
In a narrow sense, blockchain is a chained data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be non-tamperable and non-tamperable. Fake distributed ledger.
The two parties involved in the transaction do not need to know who the other party is, nor do they need a third party for trust endorsement. They only need to trust a common algorithm to establish mutual trust and conduct direct transactions.
Its characteristics are trustlessness and decentralization. The destruction of each node's ledger has no impact on the entire blockchain. The blockchain runs point-to-point payments without a center that may cheat, and the security is greatly improved. Improved, the entire transaction network has changed from a star structure to a point-to-point P2P structure.
Future BlockchainIt will be used in many fields and have a great impact on human life. It can be widely used in fields ranging from digital currency to securities and financial contracts, medical care, games, artificial intelligence, smart contracts, Internet of Things, e-commerce, file storage and other fields.
1. Cloud storage
This is the statistics of current cloud storage on the Internet. In terms of volume, Google has the largest volume, which is 8,000PB. So what if we share the idle data on the Internet?
Starlight Cloud builds a blockchain data computing and storage lake through Starlight Chain, with a total storage capacity of 15,000P (approximately 15.72864 billion G) in the future. This will be more than 10 times that of Alibaba Cloud's 1500PB! It is also more than four times the size of the Taizhou Storage Center, the largest storage lake in the world after expansion.
2. Medical aspects
Using blockchain technology to save personal medical records also retains personal medical historical data, which can be used when seeing a doctor or planning for your own health in the future. Historical data can be called directly. These data are highly private, and the use of blockchain technology also helps protect patient privacy.
III In which industries is Ant Blockchain traceability applied?
I feel that Blockchain traceability is mostly used in food, fresh produce, and medicines. Some, the country seems to have such regulations, requiring some specific industries to conduct traceability
IV If blockchain technology is used to audit food safety, what is the goal
To maintain food safety. Blockchain technology further deepens its application in the field of food safety. Its purpose is to effectively provide food safety guarantees, establish complete traceability of food safety issues, effectively help reduce consumer risks, and promptly help food companies recall problematic products in a targeted manner. , avoid the maximum risk at the minimum cost.
IV What are the application fields of blockchain technology
Abstract: Blockchain technology is the underlying technology of Bitcoin. Bitcoin is operated and managed without any centralized organization. It has been running very stably for many years (it has been running perfectly for 7 years) without any problems (no account has been missed), so someone noticed its underlying technology and abstracted the Bitcoin technology and called it a block. Chain technology, or distributed ledger technology.
What is centralization?
The so-called centralization simply means “ownership” or owned by the company. For example, Tencent’s Q coin is issued by Tencent. It is a centralized electronic currency, including the total amount and the issuance method. Regulated and controlled by Tencent. You can use it, trade and shop, but you always have to operate within the framework of Tencent, and the final right of interpretation belongs to Tencent.
The issuance method of Bitcoin is pre-set by programs and encryption algorithms.It runs on the node and cannot be modified by anyone or any organization (everyone has his or her own ledger, and it is impossible for one person to control everyone's ledger at the same time. If there is this technology, why bother to make it so complicated? You can get the money to yourself at will. His account is the richest man in the world, no one else!), and it is not controlled by any single person or institution.
For example: For example, Lao Zhang asked Lao Li to borrow 100 yuan, but Lao Li was afraid that he would default on the loan, so he asked the village chief to notarize and record the account. This is called centralization. But if you don't go to the village chief, but just use the loudspeaker to shout in the village: "I, Lao Li, lent Lao Zhang a hundred yuan! Please record it in the account book." Everyone will record this account in their own account book. This is called decentralization.
Any transfer between people will be announced through a loudspeaker. After receiving the news, everyone will record the transaction in their own ledger. With distributed ledgers, it doesn’t matter if the ledger of Lao Zhang or Lao Li’s family is lost, because other families such as Lao Zhao, Lao Ma, and Lao Wang all have ledgers.
The main advantages of the blockchain are that no intermediary is involved, the entire process is open and transparent, and the cost is low and data security is high.
Blockchain is currently at a stage where everyone talks about blockchain but cannot perceive its actual technical charm. Since 2017, it has gradually entered everyone’s attention and everyone has gradually become aware of Bitcoin. This kind of thing is more violent than real estate speculation (the price of mining machines has skyrocketed! The news is all over the screen!), but I still don’t realize how serious it is.
So, what fields can blockchain be applied to and how will it change our future lives?
Core key: everyone has an account, everyone has an account book, The information recorded in everyone's ledger is consistent and synchronized, and the information is completely transparent. If it is falsified, it will be regarded as a public enemy, greatly increasing the cost of data falsification.
Core key 2: Decentralization, there is no need for a central system to manage data, preventing some people from changing the data and harming the interests of the majority of people.
Application aspects:
1. Account security and privacy protection: currency transfer, exchange, payment system. Blockchain can help prevent data manipulation and fraud, prevent distributed denial-of-service attacks (DDoS), and effectively protect users’ online privacy. Keywords: Anti-counterfeiting, loan payment.
2. Copyright supervision and interest disputes: For example, when a song is downloaded, everyone from the writer to the producer to the singer can receive payment in real time through the blockchain without the traditional method. It took a long time to wait and even no way to get paid due to copyright disputes. Rather than waiting for a royalty check from a publishing company, creators can freely control the process of their works from publication to payment through blockchain applications. Keywords: Real-time payment, no property rights disputes.
3. Internet of Things + Artificial Intelligence: Smart devices in the Internet of Things built based on blockchain will be applied to the monitoring bridgeIn the real-time situation of urban infrastructure such as beams, roads, and power grids, blockchain can connect these smart devices together for unified management and help them monitor more efficiently. This will help people better understand how to build smart cities in the future. Keywords: unified monitoring, smart city.
4: Proof of existence: In life, once you are asked to prove that you are you, prove that your mother is your mother, prove that you are not married, prove that the house is yours, etc., it depends. It seems very simple, but once it happens to you, it will cause great trouble. The application of blockchain technology can perfectly solve the above embarrassment. At that time, all the information that belongs to you will be recorded accurately and cannot be tampered with, and no one has the right to change it. When the technology develops to a certain stage, birth certificates and marriage certificates may be recorded on the blockchain. Keywords: No keywords
In addition to the application scenarios mentioned above, blockchain technology can also be applied to e-commerce, data storage, logistics and other fields. As long as you grasp the advantages of blockchain technology characteristics will become easier to understand.
VI 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 widely used.
At present, domestic Internet and IT are involved in the blockchain industry, and are beginning to develop or launch a series of solutions for basic application cases. In the current development trend, integrating blockchain technology into smart life, 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.
VII BlockchainWhat role can it play in traditional enterprises
Blockchain is a new application model of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. Blockchain is essentially a decentralized database.
The application fields of blockchain include digital currency, certificates, finance, anti-counterfeiting and traceability, privacy protection, supply chain, entertainment, etc. With the popularity of blockchain and Bitcoin, many related top domain names have been registered. , which has had a relatively large impact on the domain name industry.
Take agriculture as an example, what problems does blockchain solve in agriculture?
1. Traceability of agricultural products
The traceability of agricultural products has always been a pain point in agriculture. Blockchain technology can make records non-tamperable, so there is detailed data from the production end of agricultural products to the circulation end and consumers, which can realize consumers' clear consumption and increase consumers' willingness to buy.
The traceability of agricultural products can improve the safety of agricultural products and food.
2. Information transparency
In addition to traceability in the agricultural field, there is also the problem of opacity in the information between producers and demanders.
Once blockchain technology is applied to agriculture. We can use big data analysis to establish credit rating references for growers and purchasers; use smart contracts to ensure fair transactions between growers and purchasers. At the same time, blockchain technology can improve the contractual spirit between buyers and sellers of agricultural products.
Also, with the advent of blockchain in the food supply chain, this could streamline the process as the data management system integrates a range of brokers, farmers, processors, distributors, regulators, retailers and Data management systems are becoming more transparent for consumers to put on their radar.
3. Reduce costs
After the application of blockchain technology, the costs of production and circulation will be greatly reduced. For example, blockchain technology solves the functions of automatic information storage and database, thus reducing manual investment and investment in other facilities.
In addition, blockchain and applications realize the interconnection of everything, helping manufacturers and distributors reduce various expenses. At the same time, reductions in production and distribution costs will also reduce the prices of agricultural products, ultimately benefiting consumers.
Of course, in addition to the above three reasons, blockchain technology can also be applied in agricultural subsidies, land registration, etc. to solve problems such as corruption and rights and interests.
Therefore, the application of blockchain technology in the agricultural field has been recognized by people at all levels.
The core advantage of blockchain technology is decentralization. It can achieve decentralized credit in a distributed system where nodes do not need to trust each other by using data encryption, timestamps, distributed consensus and economic incentives. Point-to-point transactions, coordination and collaboration, thereby providing solutions to the problems of high cost, low efficiency and insecure data storage common in centralized institutions.
Future development and application scenarios of blockchain
1. Digital identity
Many people will encounter this problem when issuing various certificatesWith blockchain, you no longer have to worry about the dilemmas of "proving that my grandma is an adult" and "my mother is my mother". It turns out that our birth certificates, real estate certificates, marriage certificates, etc. need a central node for everyone to recognize them. Once cross-border, contracts and certificates may become invalid because of the lack of a global central node.
The non-tamperable nature of blockchain technology has fundamentally changed this situation. Our birth certificates, real estate certificates, and marriage certificates can all be notarized on the blockchain and become things trusted by the world. Of course, It can easily prove "prove that my grandma is an adult" and "my mother is my mother".
2. Health care
To put it simply, it is to use blockchain to establish a universal record repository with timestamps, so that different databases can extract data information.
3. Travel consumption
When traveling, we often use apps such as Ctrip and Meituan to find and place orders for hotels and other services, and each platform gets commissions from them. The application of blockchain is to remove middlemen and create a secure and decentralized way for service providers and customers to connect and trade directly.
4. More convenient transactions
Blockchain can make payments and transactions more efficient and convenient. The blockchain platform allows users to create smart contracts that become active when certain conditions are met, meaning that automatic payments can be released when both parties to a transaction agree that their conditions are met.
5. Strictly control product quality
If you buy an apple, with blockchain technology, you can know the entire process from the production of the fruit farmer to the circulation link. Among them are government regulatory information, professional testing data, enterprise quality inspection data, etc. A smart supply chain will make the food we eat and the products we use every day safer and give us more peace of mind.
6. The Art of Property Rights Protection
The creator puts his work on the blockchain, and once someone uses his work, he can know it immediately. Corresponding royalties will also be automatically paid to the creator. Blockchain technology not only protects copyright, but also helps creators sell their works to consumers better and more directly, without requiring the assistance of distribution companies.
Ⅷ Can blockchain agriculture really ensure food safety?
How can agricultural products be traced to their origin? Let’s take a look at the traceability of rice + blockchain
In the past, agricultural production paid special attention to "quantity security", and agricultural science and technology also focused on increasing production, resulting in the overuse and even abuse of pesticides and fertilizers, which not only caused The problem of drug residues will also bring about secondary problems such as water and soil ecological environment pollution and drug resistance.
With the changes in dietary structure and consumption patterns, the public has put forward higher requirements for the quality and safety of rice. Therefore, establishing a blockchain traceability system for rice is of great significance to both enterprises and consumers.
For consumers, they can scan the anti-counterfeiting label on rice packaging at any time with their mobile phones.Using the QR code, while checking the authenticity of the product, consumers can obtain information on rice from planting, processing, quality inspection, transportation to sales, etc., and can also participate in marketing methods such as rewards, accumulated points, and gifts issued by the company. Through traceability, consumers will be more assured and safer when buying rice. In order to clarify the subject of responsibility, "the source can be checked, the destination can be traced, and the responsibility can be held accountable."
For companies, rice is sown by many farmers with hard work, but due to various negative information currently on the market, rice is unsaleable. At present, many companies have begun to use advertising to promote their brands and improve consumer trust. For some small-scale enterprises that do not have enough funds to promote, blockchain traceability technology can be used to enhance consumers' trust in the brand. Not only that, companies can also set up various rewards on the traceability platform to attract more consumers.
Therefore, for rice companies and agricultural products companies, it is essential to establish a blockchain traceability system. Enterprises can use the well chain traceability platform to store multiple frames of pictures to display information on base production, processing and circulation, and pesticide residue testing of agricultural products in multiple dimensions. The entire process can be traced, creating a brand for agricultural products and achieving traceability.
