区块链交易所客户信息采集,区块链交易所客户信息管理办法

区块链交易所客户信息采集是指采集客户的个人信息，用以进行身份认证、活跃度统计、风险评估等相关操作。采集的内容包括客户的真实姓名、身份证号码、手机号码、银行卡号、地址等。

区块链交易所客户信息管理办法是指管理客户的个人信息，以确保客户信息的安全性和可信性。按照管理办法，交易所需要对客户信息进行加密、备份、安全存储等操作，以确保客户信息的安全性和可信性。

数据安全是指保护客户信息的安全性，防止信息泄露和被恶意篡改。交易所应采取有效的技术措施，加强数据安全管理，防止客户信息被恶意篡改、泄露等情况的发生。具体措施包括加密存储、安全审计、多层防护等，以确保客户信息的安全性和可信性。

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Ⅰ What information and processes are required for exchanges on the ICO blockchain

ICO transactions are roughly divided into two parts, one is over-the-counter trading and the other is exchange trading< /p>

There are three ways to list on the exchange. The first is to vote for listing, the second is to invest in listing, and the third is to cooperate with project parties.

For exchanges, the more platform coins consumed by voting, the better; for project parties, it must be lower costs and greater user influence, the better; but for ordinary communities For users, the easier it is, the better.

What does the project party need?

The cost of project docking exchange:

The current popular Matcha exchange is generally 12-15 BTC,

Biki It is about 10 BTC with Gate exchange,

ZG exchange is 6-8 BTC,

2-5 BTC, there are many options to choose from, Leidun, ZBG , Fcoin, WBF and some other exchanges.

Fcoin, which is relatively cost-effective, is also a good choice. In the later stage, project parties can join forces with the platform to do activities, whether it is airdrops, IEO or anything else, they can be discussed.

Ⅱ There are many blockchain applications now. What kind of blockchain applications are good? Where can I get a clear understanding of them?

I want to know about blockchain applications. , you can refer to many books and opinions, including "Blockchain in Pictures", "Blockchain: Reshaping the Economy and the World", "New Economic Blueprint and Introduction", as well as articles from the Binance Community, including comments on the Binance Community platform Also learn more about it, its strength is awesome.

1. What is blockchain

Blockchain, as the name suggests, is composed of blocks and chains. It is a distributed data storage , point-to-point transmission, consensus mechanism, encryption algorithm and other new application models of computer technology. It is a chained data structure that combines data blocks in a sequential manner in chronological order, and is cryptographically guaranteed to be an untamperable, unforgeable, safe and trustworthy distributed ledger.

In 2008, Satoshi Nakamoto first proposed the concept of blockchain and encrypted digital currency in his paper "Bitcoin: A Peer-to-Peer Electronic Cash System". Starting from Bitcoin, blockchain has become the underlying technology of various digital currencies.

2. The working principle of blockchain:

1. Basic concepts include:
(1) Transaction: one operation will change the ledger status once , such as adding a record;
(2) Block: records transactions and status data that occurred within a specified time, which is a consensus and preservation of the current ledger status;
(3) Chain ( Chain): It is composed of blocks connected in chronological order.Logging of entire state changes.
Understanding the working concept of blockchain, it is not difficult to understand its working principle. Suppose there is a distributed data record book. This record book only allows additions, deletions and changes. Its structure is composed of individual data records. A linear chain formed by "blocks" connected in series (this is also the origin of the name "blockchain"). To add new data, it must be placed in a new block. The maintenance node can propose a new block. However, a certain consensus mechanism must be used to reach agreement on the final selected block.

2. Take Bitcoin as an example to see how the blockchain works.

Bitcoin blocks are divided into two parts: block header and block body.

3. Core advantages and characteristics of blockchain

1. Decentralization
Block The processes of verification, accounting, storage, maintenance and transmission of chain data are all based on the distributed system structure. There is no centralized hardware or management organization. The rights and obligations of any node are equal. The data blocks in the system are composed of Nodes with maintenance functions in the entire system are jointly maintained.
2. Open and transparent
The system is open. In addition to the private information of the transaction parties being encrypted, the blockchain data is open to everyone, and anyone can query the blockchain through the public interface. Data and development related applications, so the entire system information is highly transparent.
3. Security
The blockchain adopts consensus-based specifications and protocols (such as a set of open and transparent algorithms) to enable all nodes in the entire system to exchange data freely and securely in a trustless environment. , so that trust in "people" is changed to trust in machines, and any human intervention has no effect.
4. Information cannot be tampered
Once the information is verified and added to the blockchain, it will be stored permanently. Unless more than 51% of the nodes in the system (almost impossible) can be controlled at the same time, otherwise Modifications to the database on a single node are invalid, so the data stability and reliability of the blockchain are extremely high.
5. Anonymity
Since the exchange between nodes follows a fixed algorithm, the data interaction does not require trust (the program rules in the blockchain will judge whether the activity is valid by itself), so the counterparty does not need to Making the other party trust you by disclosing your identity is very helpful for the accumulation of credit.

4. Classification of Blockchains

Currently, the most mainstream classification of Blockchains is to divide Blockchains into Public Blockchains based on different participants. ), Private Blockchain and Consortium Blockchain.

1. Public chain: Anyone can participate in the use and maintenance, and can obtain effective confirmation of the blockchain. The public chain is the earliest blockchain and the most widely used blockchain at present. , typically asIn the Bitcoin blockchain, information is completely public.

If a permission mechanism is introduced, it will include private chain and alliance chain.
2. Private chain: A company or individual only uses blockchain technology and has exclusive write permission to the blockchain, and the information is not made public. At present, conservative giants (traditional finance) all want to experiment with private blockchains, and the application products of private blockchains are still being explored.
3. Consortium chain: It is a blockchain between the public chain and the virtual chain, jointly controlled by multiple organizations. The use of this chain is managed with authority and can be controlled by managers and also based on The manager's wishes are open to others.
In addition, according to the different usage scenarios and purposes of blockchain, it is divided into currency chains for the purpose of digital currency, property rights chains for the purpose of recording property rights, crowdfunding chains for the purpose of crowdfunding, etc. .

5. Analysis of specific application scenarios of blockchain

1. Information anti-counterfeiting

On May 28, Tencent CEO Ma Huateng spoke at the Guiyang Digital Expo The problem of Moutai anti-counterfeiting has been raised: the anti-counterfeiting method based on cloud-based comprehensive blockchain technology will be much more efficient than traditional anti-counterfeiting methods. In future anti-counterfeiting verification scenarios, users may only need to perform a simple scan with their mobile phone to obtain a large amount of complete information based on different dimensions.

Take Moutai as an example:

Distillery address, production workshop, operating employees, inspectors, factory time, transportation vehicle information and driver information,

The vintage source of raw materials for wine, raw material suppliers, storage warehouse numbers, raw material transportation vehicles and driver information,

All information can be accurately traced, permanently recorded and cannot be tampered with.

The authenticity can be easily verified based on the above information.

2. Food safety issues

As early as November last year, Walmart had cooperated with IBM to ensure food safety by using blockchain technology to track food sources. safety and increase the circulation of food to reduce costs. For large supermarkets such as Wal-Mart, when food safety problems occurred in the past, it took several days to investigate the source of the problematic food. After using this technology, only one piece of information about the product is required. It can accurately trace the source of important information such as food origin, inspectors, suppliers, logistics and transportation, and quickly detect problems within a few minutes. Currently, products tracked using blockchain include packaging products in the United States and pork in China.

3. Information Security

Blockchain technology is promoting a revolution in information security technology. Three major security threats: man-in-the-middle attack, data tampering, and DDoS

(1) Identity protection

PKI is a common public key encryption used in various communication applications such as email, messaging applications, and websites. technology. However, since most PKI implementations rely on a centralized trusted third-party certification authority (CA) to issue, activate and store user certificates, hackers can attack PKI to fake user identities or crack encrypted information.

CertCoin is the first blockchain PKI implementation, coming from MIT, which removes the centralized certification center and uses blockchain as a distributed ledger of domain names and public keys.

Pomcor Company: Blockchain PKI implementation path: retain the certification center and use the blockchain to store hash values ​​of issued and activated certificates. Users can verify the authenticity of certificates through decentralized and transparent sources, while also improving network access performance through local authentication of keys and signatures based on blockchain copies.

(2) Data integrity protection

GuardTime has developed a keyless signature architecture (KSI) based on blockchain technology to replace key-based data authentication technology. KSI stores hashes of the original data and files on the blockchain, runs hashing algorithms to verify other copies, and compares the results with the data stored on the blockchain. Any tampering with the data will be quickly detected because the original hash table is stored on millions of nodes.

(3) Protection of critical infrastructure

The "Achilles' heel" of the Internet, DDoS has entered the TB era, and DDoS is still the easiest way for hackers to defeat large targets at low cost. As a weapon, DNS services are the primary target for hackers to carry out large-scale damage, but blockchain technology is expected to fundamentally solve it.

The distributed storage of blockchain makes hacker attacks lose focus. Nebulis is developing a distributed DNS system using the Ethereum blockchain and the InterPlanetary Internet File System (IPFS, a distributed alternative to HTTP product) to register and resolve domain names. The biggest weakness of DNS is caching. Caching makes DDoS attacks possible and is also the bane of centralized governments censoring social networks and manipulating DNS registrations. A highly transparent, distributed DNS system can effectively prevent any entity, including the government, from manipulating records.

IV. Financial Industry

(1) Digital Currency: Improving the convenience of currency issuance and use

For example, foreign Bitcoin and Ethereum, our country currently There are Nuo Compao and so on.

From the use of physical transactions, to physical currency and credit currency, to the rise of the Bitcoin network, more people are aware of the distributed ledger blockchain technology behind it, and gradually outside of digital currency applied in many scenarios.

(2) Cross-border payment and settlement: realize point-to-point transactions and reduce intermediate costs

Transfer and payment. At present, the most mature application of blockchain technology is payment and transfer. Blockchain technology can avoid complicated systems, save the process of inter-bank reconciliation and review, and speed up settlement; using virtual currency does not require the intervention of a clearing house, reducing transaction fee. The clearing procedures of each country are different. It takes 2 or 3 days for a single remittance to arrive, which is inefficient and accounts for a large proportion of funds in transit. No longer going through a third party, point-to-point payment is formed through blockchain technology. Eliminating the need for third-party institutions, you can make payments throughout the day, receive money in real time, quickly withdraw cash, and reduce hidden costs, helping to avoid financial risks.risk. It is timely and convenient.

(3) Bills and supply chain financial business: reduce human intervention, reduce costs and operational risks

Point-to-point value transfer, physical bills or central system for control and verification; intermediary will be eliminated and human intervention reduced. Improved efficiency, smoother financing channels, lower risks, and benefits for all parties.

(4) Securities issuance and trading: realize quasi-real-time asset transfer and accelerate transaction clearing speed

The application of blockchain technology can make the securities trading process simpler, more transparent and faster , Reduce IT systems with repetitive functions and improve the efficiency of market operations. For stocks, blockchain can eliminate paper and pen or spreadsheet records, reduce human errors in transactions, and improve the transparency and traceability of trading platforms. Citi and Nasdaq collaborate to advance blockchain applications.

(5) Customer credit reporting and anti-fraud: reduce legal compliance costs and prevent financial crimes

Customer information and transaction records recorded in the blockchain help banks identify Abnormal transactions and effectively prevent fraud. The technical characteristics of blockchain can change the existing credit reporting system. When banks perform "know your customer" (KYC), the data of customers with bad records will be stored in the blockchain.

Equity crowdfunding: Equity crowdfunding based on blockchain technology can achieve decentralized trust and investors’ returns are guaranteed.

5. Supply chain management

Distributed ledger system, participants track the ownership of assets throughout the process, and can be used to track auto parts when moving between countries and factories.

Toyota is developing blockchain technology solutions for its core parts supply chain operations. Using a large amount of data helps Toyota more efficiently ensure the accuracy of recorded data and can also help manage the supply chain. At the same time, the blockchain supply chain can control warranty, repair goods-related costs and specifications through smart contracts, and transactions throughout the product life cycle are irrevocable.

The shipping industry’s first public solution, deployed by Maritime Transport International (MTI), uses blockchain supply chain technology to share Verified Gross Mass (VGM) information for shipping containers. Information about container VGM is important to ensure ships are properly stowed and to prevent accidents at sea and in ports. VGM data is stored on the blockchain supply chain, providing a permanent record for port officials, shipping companies, shippers and cargo owners. This replaces cumbersome logs, spreadsheets, data brokers and private databases.

Logistics Integrity System Wagonbang Wagonbang launched a blockchain-based financial solution for logistics enterprises, aiming to provide enterprises with reliable financial services. It can not only help drivers solve the problem of loan difficulty, but also change the current situation of lack of integrity in the industry and help build a logistics integrity system. Help build the identity chain of logistics companies and create a trusted data ecosystem for logistics companies. Using a transparent, supervisory, and traceable algorithm model, we screen reliable companies that need financial support and provide them with financial services. On the other hand, at the technical level, various law enforcement departmentsLink the doors to jointly punish dishonest companies.

6. Government management

(1) Election

Based on the characteristics of blockchain technology and considering the shortcomings of current election technology, we will build an open source , Blockchain applications for elections, voting and lottery, we call it ElectionChain. We hope to optimize election and voting technology to make voting more open and transparent, reduce human manipulation, and allow voters to verify their election results.

Including identity authentication, multi-chain system, flash investment protocol, consensus algorithm EDPOS, privacy protection, voting mechanism design, decentralized ELC rental market, storage solutions, smart contracts, etc.

(2) Government services

Aiming to realize an e-government digital ecosystem based on blockchain technology and provide citizens with government services and an automated mechanism for the business of various government departments, it must be All areas of national government affairs are combined to form a common information space, including government agencies, economic data, financial transactions and social fields. This ecosystem should also include registries and corresponding software for building smart contract-based applications and platforms for government agencies, businesses and public users.

Ⅲ What is the meaning of wallet account in blockchain exchange

Digital wallet is a tool for storing, managing and using digital currencies, and plays a decisive role in the field of blockchain. It is a software program or hardware device that stores cryptocurrency. In form, it is similar to an online bank account, which also has a customer ID, account number, and password. The password of the digital wallet is the "private key". Only through it can the wallet be opened and operated. Digital wallets have "receipt" and "transfer" functions, just like depositing and withdrawing money with a bank card. You need a card number and password to make normal deposits and safe withdrawals. A digital wallet does not store money, but your Bitcoin, Ethereum and other digital currencies or digital asset information.
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.

IV Which is the best blockchain exchange system development company_Top Ten Blockchain Exchanges

Blockchain is no longer an unfamiliar word to most people in China , the door to the business world based on blockchain technology is slowly opening. Around us, many application scenarios of blockchain technology have been implemented, and companies such as Tencent, Ant Financial, and Huawei have launched relevant practices in the fields of electronic bills, copyright protection, and product traceability.

In the fields of trade, consumption and other fields, blockchain has achieved a high degree of traceability, which can help regulatory agencies, trading parties or consumers verify the true source of a certain product. In globalized supply chains, this technology can help improve transaction reliability and improve regulatory efficiency.

In the manufacturing sector, blockchain helpsCollaboration and streamlining of complex supply chains. For example, manufacturing an aircraft may require tens of thousands of parts from all over the world. Blockchain technology can help manufacturers understand information about multi-level suppliers and raw materials, improving efficiency while reducing costs.

Blockchain exchange system development model

1. OTC trading:

It is an offline digital asset purchase platform independent of the exchange. Anyone can post buy/sell advertisements on the platform. Buy/sell users purchase/sell through offline transfers. After the transfer is completed, the platform will transfer the frozen digital currency to the buyer. ?

Note: The most important thing is to have a risk prevention and control mechanism to prevent delivery without payment and payment without delivery. Generally, platforms will have a freezing mechanism to ensure equal rights and obligations of both parties.

2. C2C transaction:

The transaction party publishes the transaction information of buying or selling coins on the C2C trading platform according to the needs. Payment method between buyer and seller based on booking. When transactions are completed offline, the platform acts as an intermediary and charges a certain percentage of handling fees from each successful transaction.

3. Currency-to-currency transactions:

Mainly for transactions between different currencies, using one currency as the pricing unit to purchase other currencies. The currency-to-crypto trading rules are also to complete matching transactions in the order of price priority and time priority.

4. Price limit trading:

It means that the user sets a buy/sell price and quantity, generates an order, and the system will automatically match the buy and sell orders in the market. Once the price set by the user is reached, the transaction will be automatically completed according to the price priority, time priority order

5. Market price trading:

It means that the user sets a total amount, generates an order, and starts matching from sell one Know the amount and the transaction is completed. Selling at market price means that the user sets the total number of coins to be sold, generates an order, and starts matching from the first purchase until the total number of coins is traded.

Contract trading:

Refers to a certain margin and a certain leverage ratio to conduct long or short transactions. The higher the leverage, the greater the volatility of returns, and the higher the returns and risks. Currently, the main leverage ratios range from 1 to 100 times. Contract trading will be divided into this week, next week, quarter and perpetual contract categories according to the delivery time of the contract.

7. Margin trading:

Meet the needs of some users who do not have enough digital assets but want to earn profits. A margin account is set up independently for each trading pair, and the funds are independent. , cannot communicate with other trading pairs. That is to say, when there are multiple margin transactions at the same time, one of the margin accounts is liquidated or short of funds. If there are funds in other margin accounts, the account will not be automatically replenished. This guarantee ensure the security of user funds.

Note: The risk is relatively high, liquidation is easy to occur, and the cost is also a bit high. Many include interest on borrowed assets and transaction fees. Users generally need to choose carefully.

When choosing an exchange, you should first look at security, and also look at the platform's transaction volume, richness of transaction currencies, whether to pay for currency issuance, and the speed of currency in and out, etc. for comprehensive consideration. Since each exchange has its own pros and cons, users can choose according to their own needs. However, for novice users, some cutting-edge exchange designs are more user-friendly. In order to promote the global blockchain industry to enter a healthy development state, the market is urgent An innovative, democratic, transparent, equal, free and secure trading environment is needed to cope with the upgrading and iteration of the blockchain industry and promote the formation of a healthy competitive landscape for global exchanges.

IV Blockchain Digital Currency Exchange Platform Construction Solution

Digital cash exchanges are the focus of competition in the financial field. Having a good digital currency exchange will help you compete among peers. There are great advantages. The market of digital cash exchanges is a global market, and it is involved in global transaction business hosting platforms. Digital cash exchanges have different customization needs and different functions due to different data. Good digital cash The exchange platform has rich functions, secure and powerful performance, and is differentiated among similar products. Blockchain digital asset exchange technology development

The unique interface of digital cash exchanges can provide customers with convenient means of fund transfer , such as fast recharge, currency withdrawal, currency recharge, etc. It can also support multiple transaction methods, currency transactions, legal currency transactions, over-the-counter transactions, etc.

1. Off-site exchanges: off-site transactions Also known as the OTC trading market, this is a place with no fixed place, no fixed rules and regulations, and no prescribed trading products. Users can achieve two-way transactions on off-site exchanges. The transactions are very free. It is the same as other blockchain applications. Off-site exchanges do not Unified trading system and mechanism

2. Currency transaction: Currency transaction, as the name suggests, is a transaction between digital currency and digital currency. Currency is used as the evaluation unit to purchase other currencies, with price priority and time. Intermediary in order of priority.

3. French currency trading: French currency trading can be said to be the most direct way. What is the target price of the digital cash platform? The direct purchase transaction by users with fiat currency is a French currency exchange. The disadvantage of French currency exchange is that the currencies that can be purchased are limited. For encrypted currency types, it is necessary to purchase other types of currencies and exchange them through currency transactions.

Since the digital asset exchange is targeting the global market, its language richness is very important. The digital asset exchange not only supports the development of multiple currencies, but also supports the customized development of multiple functional modules, and also supports the development of languages ​​in various countries.

The functions of the blockchain digital asset exchange will not stop here. With the upgrade of technology in the future, new and better functions will also appear. Similarly, functional requirements also promote technology upgrades.

VI Why the transaction hash value cannot be found

There is a transaction record, but there is no record on the blockchain

Investors can enter manual services through the exchange’s customer service hotline , provide personally identifiable information, query toolThe transaction hash value of the body. Usually, when a user transfers money on an exchange, the exchange will provide the user with a corresponding hash value. The hash value is equivalent to the transaction number of the bank transfer. Through the hash value, users can query the specific process of the transfer.

It is recommended to use a blockchain browser. Because transaction information and other data in the blockchain are open and transparent, and the blockchain browser is the address for querying blockchain transaction records, users can use it to view their own transaction information and other information stored in the blockchain. Website: https://etherscan.io/

VII How Blockchain Empowers Transactions

Blockchain technology itself is a distributed ledger technology, and its core features include decentralization , cannot be tampered with, transparent, etc. These characteristics allow blockchain technology to be used to empower transactions. Here are a few examples:

Decentralized payment: With the help of blockchain technology, without any intermediaries, we can realize a global instant transfer method, making currency and virtual The asset trading process is more convenient, safe and reliable.

Smart contracts: Smart contracts are automated contracts based on the blockchain that can ensure trust between two participants without involving a third party, thereby reducing operating costs and risks. Smart contracts have the advantages of faster, lower cost, and more accurate execution, making the transaction process more efficient.

Decentralized exchange: By using blockchain technology, a decentralized exchange can be established where participants can trade directly and control their own digital assets in the process, unlike traditional transactions. In comparison, it can avoid the possibility of third-party intervention and improve the transparency and security of transactions.

Digital identity verification: Blockchain technology can be used to establish a secure, decentralized identity verification system, which will help improve users’ trust in digital asset transactions and reduce the risk of fake accounts , improve safety.

In short, blockchain technology can empower the transaction side by providing faster, more convenient, and safer transaction methods.

VIII What are the applications of blockchain

Briefly introduce the application of blockchain technology in the financial field

1. Area Application of Blockchain Technology in the Banking Industry

The biggest feature of blockchain technology is decentralization, and this feature will reduce a lot of costs for the banking industry.

First of all, decentralization means that intermediaries are no longer needed to establish trust mechanisms between banking systems, saving intermediary costs.

Secondly, the development of digital currency will make it possible to realize real-time digital transactions in banks. For example, in bill transactions, bank bill transactions have always relied on a third party to realize the transfer of valuable certificates. Even electronic bill transactions require interactive authentication through information from the central bank's ECDS system. Blockchain technology can realize point-to-point value transfer and no longer requires centralized system control. This is not onlyIt speeds up the delivery of bills and, more importantly, reduces errors caused by human factors. The reduction in processes will naturally reduce the bank's demand for personnel and save the bank's labor costs.

Finally, it will also have an impact on clearing and settlement. The bank's clearing and settlement business has always been completed by central clearing, which is inefficient. Settlement through blockchain technology will greatly improve the efficiency of banks.

Blockchain technology also plays a major role in banks’ cross-border payment services. Today, when global trade is highly developed, cross-border payments are becoming more and more frequent, and banks often act as third-party services in cross-border trade, such as electronic transfers, asset custody, etc. However, cross-border payments generally take about 2 days to arrive, which is very inefficient and reduces the utilization of funds in transit. In blockchain technology, both parties of cross-border payments can be completed in a point-to-point manner, achieving round-the-clock payment and real-time arrival, thereby speeding up clearing and settlement, thereby improving the efficiency of bank processing business.

Another feature of blockchain technology is de-risking. Banks can build their own blockchain, which can ensure that bank customers’ transaction information and transaction records are true and valid and will not be compromised. If it is arbitrarily tampered with, the bank can effectively identify the customer's information, understand all aspects of the customer's situation, identify the customer's abnormal transactions, prevent being deceived by the customer, and can also promptly discover illegal money laundering, fund transfer and other criminal activities, thus reducing the supervision of the bank. cost.

2. Application of blockchain technology in the insurance industry

Blockchain technology also has incomparable advantages in the insurance industry. From the perspective of data management, the application of blockchain technology by insurance companies can effectively improve risk management and control capabilities, including the risk supervision of insurance companies and the risk management of policyholders.

The application of blockchain technology in the insurance industry can strengthen the internal risk supervision of insurance companies. Blockchain technology can record the daily operating processes of insurance companies on nodes, and can achieve in-process control over the company's capital flow, investment status, compensation payments and other businesses, and improve the company's risk management and control capabilities.

In addition, blockchain technology is safe, reliable, and cannot be tampered with at will, ensuring that the information obtained by the policy holder is true and effective, thereby enhancing the policy holder's risk management capabilities.

3. Application of blockchain technology in the securities industry

The application of blockchain technology in the securities industry can increase the flexibility of securities issuance. Companies issuing securities can use smart contracts , by setting the method and time of securities issuance, securities can even be issued 24 hours a day under the most ideal condition.

Under the operation of smart contracts, automatic matching of buyers and sellers is realized, and settlement and clearing steps are automatically completed through the distributed digital registration system. The transaction records on the blockchain will not be changed arbitrarily, so the entered information actually has a publicity effect, so the stock exchange has problems with the confirmation of ownership.There will be no dispute.

In addition, blockchain technology makes the securities trading process more open and transparent. Through blockchain technology, the securities industry does not need a central organization to operate and manage, nor does it require investment banks to underwrite, to achieve true peer-to-peer transactions, reduce illegal activities such as black-box operations and insider trading in securities transactions, and realize the control of securities. Effective supervision of the industry.

4. Blockchain technology and financial infrastructure

Blockchain technology uses a decentralized mechanism to exchange value, which will lead to a modern world characterized by centralization. Some financial infrastructures have undergone earth-shaking changes.

Assets such as collateral, pledges, and stocks, bonds, and derivatives usually require a trustworthy central organization to register or keep them, but blockchain can record and save these in a new way. Product data will have an impact on the registration system for these products.

Blockchain can receive and react to information and value through smart contracts, automatically complete the transfer of value, and automatically complete transactions, clearing and settlement, which will impact the existing large-amount transaction systems and central banks. Existing financial infrastructure such as securities depository, securities settlement and over-the-counter derivatives trading.

5. Application of blockchain technology in supply chain

The application of blockchain technology in supply chain first provides credit guarantee, and the blockchain records Commodity circulation information, etc., can prove the authenticity and reliability of commodities and their circulation, thereby enabling a comprehensive evaluation of the utility of enterprises on the chain, and becoming an effective guarantee for corporate bank loan credit, financing credit, and transaction credit. .

First of all, the blockchain can time-stamp all the transaction data in the supply chain and cannot be tampered with at will. Even if the transaction data of a certain node can be tampered with, it cannot cover the sky with one hand, so the area Blockchain solves banks' concerns about corporate information being tampered with. For some small businesses, as long as they have good credit, the possibility of borrowing from banks will be greatly increased.

Secondly, through effective integration, the information between upstream and downstream enterprises recorded in the blockchain can not only provide support for enterprises in production, sales and other links, but also provide downstream enterprises with the ability to analyze customer preferences. , so that targeted services can be developed.

Ⅸ A new way to track and manage digital assets, teach you how to view blockchain bills

Bills record value circulation and status, which is a basic function of financial services.

Our commonly used banks, Alipay, WeChat Pay, etc. will record a transaction for ordinary users and merchants, and provide query, statistics and analysis services in different dimensions.

For example, the Alipay annual bill that everyone loves to post will count the user's total income and expenditure throughout the year, consumption types, Yu'E Bao and other financial management income, and the number of takeaway orders. Through big data technology, various regions are displayed.The consumer interests and trends of the same age group allow consumers to better understand the consumption environment around them, and merchants can grasp market demand in a timely manner.

In a decentralized blockchain network, transactions are permanently recorded on the chain, open and transparent, and accessible to everyone.

However, since the design of the blockchain is more inclined to ensure non-tampering and data compression requirements, the filtering query function at the business level is missing. Coupled with the different rules of different chains, it becomes extremely difficult to track and manage crypto assets. This is why digital asset investors often lament that they “always feel like they don’t have a clear account.”

SixPencer launches a new blockchain accounting artifact, which currently supports asset tracking and management at the bottom of Bitcoin and Ethereum. It is free to use and does not require registration.

Once launched, it has been loved by miners, asset management institutions, OTC merchants, encryption startups, and digital asset investors.

As a professional asset management tool, it can not only query all transaction records on the chain, but also view account balances and It holds assets and provides daily income and expenditure in various currencies, supports single or multi-address aggregate income and expenditure statistics, address portrait analysis and charts, large transaction record rankings, contact management, etc.

After entering the website, enter the Bitcoin or Ethereum address in the search box on the homepage, and click Search to enter the overview page of the address.

We use the address that currently ranks first in ETH holdings on the entire network: (tag: bitfinex 1) account as a demo account for demonstration, and all data are real on-chain data.

Here is a brief introduction to the difference between addresses and bank accounts on the blockchain. On the blockchain, an address is similar to a bank card number. Knowing the address is the same as knowing the bank card number, and you can transfer money to it.

But the difference is that the blockchain is a distributed public ledger that cannot be tampered with. It is usually anonymous and anyone can conduct public queries on any address. The bank account can only query your own account information, and you cannot know other people's account information through the bank card number.

If the user has multiple addresses or wants to track other addresses, they can search. All searched address information will be summarized on the asset portfolio page. Click the drop-down box to switch or delete accounts.

In addition to the basic information provided by the blockchain browser, SixPencer also displays some personalized indicators to help users understand their own on-chain portrait and track the on-chain trajectories of other accounts. On the overview page below, you can view the address's asset overview, historical indicators, income and expenditure statistics, and asset holding information.

Address overview

Creation time: date of first receipt of ETH

Net assets: all assets, including ERC20 tokens Total USD value of assets

ETH ranking: Ranking of all Ethereum addresses holding ETH amount

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ETH balance and valuation: Amount of ETH held and its corresponding USD value

Historical indicators

< p> Historical indicators display four major dimensions: transaction volume, number of transactions, token analysis and contact analysis. Through statistics, the unclear accounts can finally be settled. For example, the simplest accounting calculation, total ETH income = ETH balance + total ETH expenditure + total ETH handling fee. Another example is the total number of transactions = the number of transfer-in transactions + the number of transfer-out transactions.

Due to the particularity of the Ethereum network, all transfer fees are paid in ETH. Therefore, we list the handling fees separately, and also support separate screening of handling fees in the transaction details to help users count handling fee expenditures.

Some interesting data, the demo account fee is 1.1556ETH, a single large ETH transfer reaches 900,000 ETH, and the number of tokens held is There are 350 types, and the most traded token is USDT, with only 37 addresses that have been traded with it.

Addresses that hold hundreds of different assets are usually exchange addresses. In addition, the number of transactions and contacts are not many, so it can be ruled out that it is an external address, and it can basically be judged that it is used internally by the bitfinex exchange. address.

Income and Expenditure

Statistics of the total income and expenditure of all assets this month, including handling fees.

Assets held

Displays the number, value, asset price and 24h increase or decrease of assets held. The address of an exchange such as a demo account, which holds assets, usually does not fit on 10 pages.

In addition to providing the transaction flow of addresses, SixPencer also supports query and filtering of full historical transaction records, balance information, daily income and expenditure statistics, etc.

Transaction details

From the following page, you can clearly know the income and expenditure of ETH assets this month. Users can also filter based on date, fund flow, transaction classification and labeling system. If you need more detailed statistics, we will introduce how to filter transactions at specified addresses later.

Click the ETH drop-down box in the picture above to switch to the transaction details page of other currencies. For example, switch to the transaction details of USDT to view the detailed status of USDT.

In addition to monthly bills, SixPencer displays the transaction details of each transaction, providing information such as transaction direction, transaction counterparty, transaction amount, account balance, transaction time, daily income and expenses, etc. As you can see in the picture below, the nearly 6 ETH transactions were all transactions transferred from the bitfinex 3 account to bitfinex 1.

Transaction details

Click on any transaction details to enter the transaction details page of that transaction. The transaction hash is a unique and immutable transaction ID for each on-chain transfer, similar to the concept of an order number.

The specific information of a transaction can be queried through the transaction hash.

The transaction quantity, transaction status, transaction time, sender and recipient, handling fee, etc. shown below are the specific information of this transaction and will not be repeated here. It is worth noting that SixPencer provides a personal tag and remark system. Users can make personalized classifications and notes for individual transactions to help remember and not forget every transaction.

How to quickly find and specify the transaction information of the address?

As time goes by and the number of transactions increases, it becomes extremely complex and difficult to query the specified transaction information on the chain. SixPencer refines transaction information according to business needs, and provides a label system to assist users in custom transaction inquiries and statistics.

For example, you want to query the total amount of ETH transferred to the demo account from the address (label: bitfinex 3) in June 2020. Through our billing system, it only takes two steps to check.

1. Label: For demonstration, we will rename the label "bitfinex 3" to "test test".

2. Filter: Filter the dates to June 1st - June 30th, select "Transfer" in the filter bar, select "Test" in the bottom tab bar, and click Save.

After saving, you can search for all the transaction information transferred to the demo account from "test test" in June. As can be seen from the picture below, in June, the demo account transferred from the address labeled "test test" 58,440.2489 ETH received.

If the user wants to query transactions with multiple specified addresses, select multiple tags and adjust the date, fund flow and other information to perform automatic statistics of assets.

In the analysis column, users can query the chart analysis information of the address in different dimensions, including the four major dimensions of balance, transaction, classification and ranking. You can also view more detailed data and charts by clicking on each dimension separately.

Balance: Balance displays the balance quantity and value trend of assets

Transaction: Transaction displays all transactions, the number of transactions transferred in and out, and the number of transactions Trends in value and number of transactions

Classification: Classification counts transaction types based on the platform's address label system, reflecting the transaction preferences of the address

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Ranking: The ranking displays active contacts according to the number of transactions, and displays large transactions according to the transaction amount

For example, ranking Analysis, you can quickly check the specific transaction amount and large transfer status with a certain address. As shown in the figure below, the demo account and the address labeled "test" have a total of 177 transactions this month. Other transactions with the demo account that have more transactions are ERC20 Token contract call transactions.

From the picture below, the large-amount rankings are also transaction information with addresses labeled "test". The table displays transaction objects, transaction time, transaction direction, transaction quantity and value. If you are interested in large accounts on the exchange, you can check the large transfer information of the exchange address to see which addresses are large deposits and withdrawals.

The address book displays all addresses that have transaction records with the demo account. In addition to the platform's own label system, users can add labels to addresses or rename labels.

Tags: tags known by the display platform tag system and tags added by users

Recent Contacts: Displays addresses/labels with transaction records in the last 30 days

All Contacts: Displays all contacts with transaction records Addresses/tags, addresses with more than 10,000 transactions, display of contacts for the last 10,000 transactions

In summary, SixPencer’s new asset tracking and management tools can provide It has more comprehensive query and analysis functions than a blockchain browser or wallet. As a tool product, it is intended to assist users in digital asset management and help everyone make better decisions through further analysis of user profiles on the chain.

We believe that the open and transparent mechanism of blockchain should make data query easier, but currently it is still difficult and painful to quickly query blockchain data according to actual business needs, and has become a major obstacle to commercial implementation.

Digital asset transactions are only a small part of it. A large amount of valuable data will be stored on the blockchain in the future. SixPencer will continue to launch more practical tools to allow Data better serves the business.

X Are blockchain transactions anonymous? Why do exchanges require identity authentication?

Identity authentication originates from the KYC system. First, let’s talk about what KYC is. KYC (know-your-customer) is a basic system in the financial industry. Traditional financial institutions will require customers to provide identification, location, employment certificate, income and other information, mainly to comply with anti-money laundering and the Anti-Terrorist Financing Rules (AML-CFT), while the requirements for cryptocurrency exchanges are relatively low, generally only requiring real-name authentication.
Ordinary users conduct cryptocurrency transactions through exchanges, and centralized exchanges basically require KYC.Although there are already decentralized exchanges that do not require KYC, they have few users and poor liquidity. Compared with centralized exchanges, they are still non-mainstream. (Although Binance DEX is a decentralized exchange, it also requires KYC. of). This has also resulted in KYC becoming a step that users must go through to enter the crypto market.
Many people have doubts about this. Does KYC violate the decentralized spirit of cryptocurrency? Will their KYC information be abused? The author believes that these two points are not contradictory. Although cryptocurrency is decentralized, the exchange itself is not. In today's chaotic currency circle, KYC is still necessary.
The purpose of KYC by exchanges is to ensure that only qualified people can use a service and to prevent minors, illegal elements or users from countries that do not provide services from using it.
At the beginning, many exchanges did not require KYC. At that time, the encryption market was still very weak and did not attract the attention of regulatory authorities. However, as the size and influence of the encryption market grows, the government can no longer continue to ignore it. Regulators in various countries have introduced policies to incorporate the cryptocurrency industry into the traditional financial supervision field. The price of cryptocurrency compliance is having to adhere to strict KYC/AML-CFT regulations.
The anonymity and transnational circulation of cryptocurrency make it very suitable for use in various illegal activities. This is also a very powerful excuse for anti-crypto people to attack Bitcoin. During the Libra hearing, both Trump and the U.S. Treasury Secretary focused on this issue. The AML-CFT rules are a system designed to prevent criminals from being used by criminals involved in illegal activities such as terrorist financing and money laundering.
Of course, the implementation of KYC by exchanges is not entirely due to policy reasons. Security factors are also a major motivation. If an exchange allows anyone to trade without verifying their identity, it will easily attract criminals and become a breeding ground for money laundering and fraud. After KYC, the exchange can grasp the true identity of the users and find them if there is a problem, which is conducive to combating crime and protecting the security of user assets.
KYC also plays a role in suppressing fraudsters and fake accounts. In order to attract new and active users, many exchanges have various activities such as airdrops, invitation rebates, and trading competitions. Without KYC, the wool party can register a large number of accounts at almost zero cost through the code receiving platform, but KYC has raised the threshold a lot, which is also the way many platforms now combat the army of account swiping.
The method that takes into account both privacy and KYC does not yet exist. In order to ensure the interests of exchanges and customers, it is foreseeable that the current KYC model will continue to exist for a long time.
As users, we can only improve our security awareness. In order to ensure the security of KYC information as much as possible, we must choose a large and guaranteed trading platform. The KYC systems of these exchanges are more complete and are relatively safer. Additionally, watermarks can be added to images before submitting KYC informationand timestamps and other information, so that even if it is leaked, the harm will be very limited.