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1. Nowadays, blockchain is so popular. How to distinguish website URLs that are safer and more reliable?
Thanks for the invitation. How popular is the concept of blockchain now, whether it is ordinary people or investors? Still, listed companies or Internet companies are gearing up and eager to try to carve up this cake, even though the cake has not yet taken shape. So much so that there are so many projects and companies disguised as blockchain that are hard to tell whether they are real or fake. They use various website URLs to promote themselves as "blockchain+". As an ordinary citizen, how can we tell whether these website URLs are safe and reliable?
First of all, we can use some professional tools and websites on the Internet for identification. For example, use 360 Demon Mirror, Kingsoft anti-virus software, etc. to filter to determine the security of the website address. At the same time, you can also log in to the webmaster tools and the Ministry of Industry and Information Technology website to check the authenticity and safety.
Secondly, you can enter the website address to see what the website promotes. Blockchain is just a technology. How this technology is applied, its scope of application, etc. all need to be studied and verified. If the content promoted by the website is exaggerated or hyped, we should be vigilant.
2. How to make money with blockchain
Blockchain technology will eventually lead to a "decentralized" "demand docking chain network" that can be connected with demand. , you will definitely make money.
Not to mention the participation of some e-commerce giants, even small and medium-sized enterprises, individual investors, and entrepreneurs are deeply involved in blockchain technology, because everyone knows that in In such an undivided field, everyone can use blockchain technology companies to realize the development potential of entering the road to wealth! Those who hesitate are giving others the opportunity to "get there first".
3. What are the domestic blockchain games?
1. CryptoRabbit – Xiaomi’s “Blockchain Game Project” 2. Dongle – Lineport” "Blockchain Game Project" 3. Blockcat - 360 "Blockchain Game Project" 4. NetEase Lucky Cat, Planet - NetEase "Blockchain Game Project" 5. Leitz - Dog Network "Blockchain" "Chain Game Project" Chongqing Anonymous Technology is still possible, and many are doing it
4. Is online mining real?
Is online mining real, that is, traffic mining.
5. How about the Anbi trading platform?
It is quite reliable.
Anbi Trading Platform is a trading platform focusing on blockchain assets created by a group of digital asset enthusiasts led by Changpeng Zhao (CZ). Provide users with more secure and convenient blockchain asset exchange services, and aggregate global sources of high-quality blockchain assets. We are committed to building a world-class blockchain asset trading platform.
6. "Block Storm" epub download online to read the full text, please ask for Baidu network disk cloud resources
"Block Storm" (Wei Shenmo) e-book network disk download free online Read
Link: https://pan..com/s/1BsHzpPvtp1XGJJWxkXuCFg
Extraction code: 8t43Book title: Blockchain Storm
Douban score: 7.4
Author: Wei Shenmo
Publisher: Jiangsu Phoenix Literature and Art Publishing House
Publishing year: 2018-6
Number of pages: 304
Introduction:
Detective Tian Cai received a request for help from a strange woman. When he visited the woman, he found that she had been kidnapped.
I thought this was just a simple kidnapping case, but found out that it was a criminal transaction using blockchain technology. This dark blockchain is full of unheard cases...
Mystery! revenge! sin!
Peering into the most secret dark corners of the world and staring into the unfathomable criminal abyss of the Internet age.
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☆The First domestic blockchain crime novel, true record of online transaction crimes! ! ! Pry into the hidden dark corners of the world and gaze into the unfathomable criminal abyss of the Internet age.
☆The seemingly peaceful life is filled with many hidden crimes, and these crimes are even more undercurrent due to the existence of the Internet.
☆ Behind the seemingly ordinary people, there are unspeakable sins and sorrows, good and evil, truth and lies. Which one is the real me?
☆When night comes, no one can keep the day in that corner. To know. The abyss is for everyone.
☆The cover of the book is stamped with gold to highlight the theme and enhance the visual impact!
About the author:
Wei Shenmo: a seal carving craftsman, obsessed with traditional culture, born in Xuanwu District, Beijing in 1988, deeply influenced by the culture of Nancheng, Beijing
Currently working in the Information Technology Department of a well-known domestic securities company, as a senior IT engineer and project manager in the industry.
The total reading volume of the article on the "Youdu Stories" APP exceeds 100,000+
In the second season competition of the "Youdu Stories" APP·Literary Freshmen, his short story "Jimen "Smoke Tree" and "Golden Terrace Sunset" stood out and won the Editor-in-Chief's Special Award and the Best Newcomer Award respectively. He was the only author to win double awards in the entire competition.
The novel "The Perpetrator" has been published
7. What epic vulnerabilities in the blockchain discovered by 360
May According to news on the 29th, recently, the Vulcan team of 360 Company discovered a series of high-risk security vulnerabilities in the blockchain platform EOS.Hole. It has been verified that some of these vulnerabilities can remotely execute arbitrary code on EOS nodes, that is, they can directly control and take over all nodes running on EOS through remote attacks.
Blockchain network security risks require urgent attention
EOS is a new blockchain platform called "Blockchain 3.0". The currency market value is as high as 69 billion yuan, ranking fifth in the world in market value.
In the blockchain network and digital currency system, there are many attack surfaces in nodes, wallets, mining pools, exchanges, smart contracts, etc. The 360 security team has previously discovered and exposed multiple attacks against Serious security vulnerabilities in digital currency nodes, wallets, mining pools, and smart contracts.
The series of new security vulnerabilities discovered by the 360 Security Team in the smart contract virtual machine of the EOS platform are a series of unprecedented security risks. No security researchers have discovered such problems before. This type of security issue not only affects EOS, but may also affect other types of blockchain platforms and virtual currency applications.
360 expressed the hope that through the discovery and disclosure of this vulnerability, the blockchain industry and security peers will pay more attention and attention to the security of such issues, and jointly enhance the security of the blockchain network. Safety.
Content source: The Paper
8. What is 360 Block Cat?
360 Block Cat is a casual and fun pet launched by 360 As long as you download the cat blockchain software and go to 360 block cat, you can get your own exclusive cat. So what is the specific method to get it? Let us take a look below.
What is 360 Block Cat?
360 Block Cat app is an electronic pet raising game based on blockchain technology. 360 Block Cat app is officially released by 360. This 360 Block Cat app Similar to Ethereum Cats and Leitz Dogs, the first generation block cats of the 360 Block Cat app are limited to 50,000. Users of the 360 Block Cat app can produce offspring by breeding with each other. Of course, their value will also be affected by the number of reproductions. .
What is the use of 360 Block Cat?
360 Block Cat app is a virtual pet empowered by the blockchain. Each block cat in the 360 Block Cat app is cute and cute, with its own merits. They are uniquely yours in the vast digital universe.
The first batch of 360 Block Cat app is limited to 50,000 pieces. According to the breeding order, "Block Cats" are divided into 0 generations, 1 generations, 2 generations, etc., among which the first generation is the most precious.
During the 360 Block Cat event, users who successfully submit an appointment can adopt a 1st generation cat; if they invite and get the help of 10 friends, they can adopt a very precious 0th generation cat~
360 Block Cat This app only records the user’s reservation and forwarding information for adoption of block cats. Only after the Blockcat platform and products are officially launched can users actually receive their adopted Blockcat.
360 Block Cat Event Description:
Block Cat is empowered by blockchainVirtual pets. Each block cat is exquisite, cute, and unique in its own way. They are uniquely yours in the vast digital universe.
According to the number of reproductions, block cats are divided into generation 0, generation 1 and generation 2...the smaller the generation, the more precious it is~
During the event, users who successfully submit an appointment can adopt a 1st generation cat; Invite and get the help of 10 friends, you can adopt a very precious 0th generation cat~
This event only records the information of users’ reservations and forwarding activities to adopt block cats. Only after the Blockcat platform and products are officially launched can users actually receive their adopted Blockcat.
360 Block Cat event time: February 14, 2018 12:00:00 to February 21, 2018 23:59:59
How to get 360 Block Cat? How to get 360 Mobile Assistant Block Cat?
1. Make an appointment to adopt a 1st generation block cat
1. During the event, users click the "Book Now" button at the bottom of the page, fill in the user information, and successfully submit the block cat appointment and adoption registration, then they can adopt it. 1 1st generation block cat.
2. Each user (the same WeChat ID, mobile phone number, device, and IP address is considered the same user) can adopt up to one first-generation block cat through reservation.
3. Each user can only make one reservation, and repeated reservations are invalid.
2. Forward this activity to adopt a 0-generation block cat
1. During the activity period, the user successfully shares this activity with WeChat friends or WeChat Moments, and invites WeChat friends to click the "Help them realize their wishes" button on the page , with the help of 10 WeChat friends, you can adopt a zero-generation block cat.
2. A WeChat friend must have successfully adopted a 1st generation block cat, otherwise the WeChat friend will not be able to help the user adopt a 0th generation block cat after clicking the "Helping him or her wish come true" button.
3. A WeChat friend (the same WeChat ID, mobile phone number, device, and IP address is considered the same WeChat friend) can only help the same user once. Each user can adopt up to 1 animal by forwarding this activity. Generation 0 Blockcat.
360 Block Cat Activity Rules:
1. To participate in the activity, users need to fill in their mobile phone number and other real identity information and pass verification.
2. Each user can only adopt a maximum of 1 1st generation block cat and 1 0th generation block cat.
3. During this event, 50,000 generation 0 cats will be given away. Users are on a first-come, first-served basis while supplies last.
4. Blockcat is expected to be launched in April 2018. The official launch time and content of Blockcat activities after the launch are subject to the provisions of the Blockcat User Agreement. After Block Cat is officially launched, users can verify and redeem Block Cat on the Block Cat platform with the mobile phone number registered in this event.
5. If the user cannot find the previous appointment record after reopening the activity page, he can click the appointment button again. After completing the mobile phone verification, he can see his adoption appointment record; the activity page only displays the latest 20 appointments for him. Make appointments with friends for help and records.
6. If the system determines that the user has cheated, for example, the same ip address registers multiple users, uses non-human operation methods such as auxiliary programs or exploits platform technical loopholes, etc. For example, users who adopt block cats have the same mobile phone number, device, WeChat account, the same or similar address, the same IP, and the same email address In such circumstances, 360 reserves the right to terminate the user's qualifications to participate in this activity, cancel all activity rewards, and has the right to pursue relevant legal liabilities.
7. This activity does not charge any fees to users, and users do not invest any money in participating in this activity. According to legal regulations, Blockcat products and platforms may be adjusted, changed or even terminated at any time. Users understand this and have no objections. Zaoyin
8. 360 reserves the right to interpret this activity within the scope permitted by law.
9. "Metaverse" is popular, what is this thing?
The Metaverse is linked and created using technological means, and mirrors the real world and interactive virtual world, a digital living space with a new social system. [12]
The Metaverse is essentially a virtualization and digitalization process of the real world, which requires a lot of transformation of content production, economic systems, user experience, and physical world content. However, the development of the Metaverse is gradual. It is finally formed by the continuous integration and evolution of many tools and platforms under the support of shared infrastructure, standards and protocols. [23] It provides an immersive experience based on extended reality technology, generates a mirror of the real world based on digital twin technology, builds an economic system based on blockchain technology, and closely integrates the virtual world and the real world in the economic system, social system, and identity system. , and allows each user to perform content production and world editing. [23]
The term metaverse was born in the 1992 science fiction novel "Snow Crash". The novel depicts a huge virtual reality world where people use digital avatars to control and compete with each other to improve their status. , up to now, it still describes an advanced future world. [1] Regarding the "metaverse", the more recognized source of thought is the American mathematician and computer expert Professor Verno Vinci. In his novel "Real Names" published in 1981, he creatively conceived a brain-computer system. Interface to enter and gain sensory experience in the virtual world.
10. How to define blockchain and what are its application scenarios
Many people now think that blockchain is a universal technology that can do anything. 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.
BlockThe characteristics of blockchain technology include:
Blockchain is a database storage system that is distributed around the world and can operate collaboratively. , different from traditional database operations where read and write permissions are in the hands of a company or a centralized authority (centralized characteristics), 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, people who provide services on the blockchain can perform read and write operations on any node in the system. In the end, all nodes around the world will complete the process again and again according to a certain mechanism. Synchronize in sequence to achieve complete consistency of data in all nodes in the blockchain network.
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 advantages of easy portability and storage, low circulation cost, convenient use, easy anti-counterfeiting and management,Breaking geographical restrictions and enabling 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. In early August 2019, 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 on-chain transactions 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 launches the blockchain electronic invoice "Tax Chain" platform, the tax departmentDoors, issuers, and payees join the "Tax Chain" network through unique digital identities, truly realizing "instant invoicing upon transaction" and "instant reimbursement upon invoicing" - invoicing in seconds and reimbursement in minutes, significantly reducing tax collection and management costs. Effectively solve problems such as data tampering, over-reporting of one vote, 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. It 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. The limelight overshadowed everything. Some people said that this was the arrival of a new era. 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 issued a request to Xinya NewSeed revealed the latest progress in blockchain applications.
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.
eShanbao's new intellectual property protection solution based on timestamp + blockchain starts from the user's real-name authentication and solidifies the information generated during the real-time solidification process. Electronic data, and through the time source service synchronized with the National Time Service Center, online works are stamped with legally valid timestamps to prove that electronic files have not been tampered with in 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. Data authenticity, security and openness issues in the field, through the establishment of trustworthy dataData management environment, prevent and avoid various data management problems such as data fraud, tampering, and loss, and promote 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 bidding corporate financeServices and corporate financing
Promote the rationalization of electronic guarantee rates
At present, electronic bidding deposit guarantee guarantees have been used in the bidding field It has certain applications and solves the problem of capital occupation in bidding deposits for bidding companies. 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.
At present, it is up to the bidder to choose whether to use an electronic letter of guarantee, and the rate is the main choice basis for the bidder. If the bidder performance records are shared through the blockchain and the performance risks of different bidders are analyzed, it will be Different bidders provide different guarantee rates, which not only reduces the risks of financial institutions, but also reduces the use costs of most bidders and promotes 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, and the centralized systemInformation systems also 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 discountable and financing. The "tokens" on the chain can be split and transferred from first-level suppliers to second-level (and multi-level) suppliers, thereby allowing core enterprise credit to be transferred to multi-level suppliers. The shortage of funds from suppliers due to credit sales has been solved, improving the business environment; through value transfer through the blockchain, the financing cycle has been greatly shortened; the cost of supplier loans has been reduced, which will help reduce the production costs of raw materials or intermediate products, and ultimately Increase bidders' profit margins and indirectly reduce bidders' costs.
Regarding blockchain, we can imagine a decentralized management model and technical processing method.
Let me give you an example. There are five people in your family, and they have never been able to figure out 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.
What application scenarios can blockchain have?
In fact, many of our families and many organizations use blockchain management forms every day
However, this kind of blockchain application for organizational relationships cannot produce Economic Value.
What are the economic applications of blockchain?
The first type is used for tax deposit certificates, bank transfers, etc.
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 enterprise operation and management
Enterprises using blockchain management can better solve the problems of enterprise development and allow enterprises to Able to develop faster and make more money.
Summary: The application scenarios of blockchain 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 goal is toPeople get along with each other more equally. Technology is meaningful only when it serves human values, and technology that meets human value needs will develop. Therefore, blockchain is in line with human pursuit of freedom and equality, so its trend to become mainstream is unstoppable.
Currently, there are many blockchain gimmicks, which are basically used to issue coins. The newly launched ono is a decentralized, free and global social 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 will no longer be recorded and reviewed at any time like it is now on WeChat, QQ, and Facebook, freeing you from the trouble of surveillance.
In fact, blockchain technology can be used in any field. Information that previously required third-party confirmation can be completed online and confirmed at 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 explode, 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 a cryptographically guaranteed distributed ledger that cannot be tampered with or forged.
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.
In the future, blockchain will be used in many fields and will 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 15,728.64 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.
