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Ⅰ Yunnan Blockchain Electronic Invoice Platform Login

What is a blockchain electronic invoice? Blockchain electronic invoices enable invoices to be issued from the beginning by uploading invoice-related information to the chain. The whole process of reimbursement is managed, and every invoice can be checked, verified, credible and traceable. The blockchain electronic invoice management system built by Yunnan Province is mainly aimed at invoices issued without using the value-added tax invoice management system, such as general machine-printed invoices, named invoices, fixed-amount invoices and manual invoices. Taxpayers can choose to use blockchain electronic invoices, and qualified taxpayers can also choose to use invoices issued by the VAT invoice management system. Next, let’s learn how to issue a blockchain electronic invoice! 1. Taxpayers first need to apply to the competent tax authority for the use of blockchain electronic invoices and submit relevant materials. The tax authorities open the blockchain for taxpayers. 2. After taxpayers log on to the chain, they can register as users. Go to the website https://yunnan-cloud.wetax.com.cn/ on your computer to register (if the tax authority has not activated the chain for taxpayers, you cannot register). 3. Click "Register Now" to open the registration page. The content with "*" in the registration page is required. After filling in the required content, click "Register" to complete the account registration (the registration code does not need to be filled in). 4. Click "Account Login" and log in using the account number and password used during registration. Users who log in to the merchant platform for the first time need to complete the contract signing and enter the merchant platform after signing. When logging into the merchant platform for the first time, if you encounter the prompt "The store does not have a tax disk bound", just click OK. 5. After logging in to the merchant platform, click "System Settings" - "Bind WeChat". After binding WeChat, you can use WeChat to scan the QR code to log in to the merchant platform. 6. After logging into the merchant platform, click "Equipment Coding" - "Invoicing Equipment" - "Bind Yunnan Blockchain Electronic Invoice". When binding the tax disk, the "*" content is required. After completing the filling, click "Synchronize". 7. Click "Equipment Code" - "Product Code" - "Add Product Code" - "Tax Product Code" - "Enter the name to search" on the merchant platform. By searching the product code name, you can quickly find the corresponding code, "Select" It will automatically bring out the product number, select the applicable tax rate and other information. Check "Default billing items" to "Yes" and click "Add". 8. Click "Group Management" - "Store Management" on the merchant platform. Check the store, click "Modify", click "Tax Disk" to select the tax disk number, fill in the "Biller" and click OK, then "Download the store QR code" to make a QR code table card for customers to scan on WeChat. Invoicing. 9. Now customers can use WeChat to scan the QR code to submit invoicing information. 10. After the customer submits the information, the taxpayer can see the invoicing information submitted by the customer in the "Invoicing Management" - "Invoicing Review" on the merchant platform. Please check the invoicing information carefully and decide whether it passes the review. 11. Click "Query Statistics" - "Invoice Details" on the merchant platform to view the invoice issuance status, and perform operations such as retry issuance/redemption/send email/download PDF of the invoice..

II What is block linking

Are you asking about the blockchain?
The process of block linking is mining.
Customer needs, tasks, bills, etc. will be packaged into blocks. Blocks must be connected to the blockchain and ensure true, effective and transparent sharing. So an encryption algorithm is needed at this time, and only decryption can become a real block.
The decryption process is not very easy, the purpose is to remove fake blocks and waste blocks. That is to say: there are rewards for telling the truth, and there are penalties for telling lies.
Only when the block is proved to be true and valid, it can be added to the end of the blockchain and allowed to be shared by all clients.

III Components of Blockchain

The components of Blockchain are as follows:

Openness: Blockchain The system data is open and transparent, and everyone can participate. For example, when renting a house, you can know the previous rental information of the house and whether there have been any problems. Of course, some personal private information is encrypted.

Autonomy: The blockchain adopts consensus-based specifications and protocols (such as a set of open and transparent algorithms), and then each node operates according to this specification, so that everything is completed by machines , there is no human element. This changes trust in people to trust in machines, and any human intervention has no effect.

The information cannot be tampered with: If the information is stored in the blockchain, it will be saved permanently and there is no way to change it. As for the 51% attack, it is basically impossible to achieve.

Anonymity: There is no personal information on the blockchain, because it is all encrypted and is a string of letters and numbers, so your various ID card information and phone number will not appear. Numbers are being resold.

IV Give an example of what is blockchain

Question 1: What is blockchain technology? What exactly is blockchain? What is blockchain? 1. Data blockchain is an important concept in the Bitcoin financial system. It records transaction record data on the entire Bitcoin network, and these data are shared by all Bitcoin nodes. Through the data block, we can query each transaction record. A look at the history of Bitcoin transactions. 2. Example: There are three persons A, B, and C. All funds of A and B are kept by C. And every financial transaction must be recorded by C. Now assume that A and B each have 1 million in custody of C. Then: A spends 80,000 yuan to B, then C's account book record will subtract 80,000 yuan from A's name, and add 80,000 yuan to B's name. If B transfers 50,000 yuan to A, C will add 50,000 yuan to A's name and subtract 50,000 yuan to B's name in the account book. A spends 50,000 yuan to B, then C's account book record will subtract 50,000 yuan from A's name, and add 50,000 yuan to B's name. 3. The role of the data blockchain is similar to that of C’s account record book. It records the user’s ownership of Bitcoin and the records of all users’ Bitcoin transactions. It’s just this “account record book”is recorded by the mining software of every Bitcoin miner on the network. If a Bitcoin transaction is confirmed by the data blockchain, the relevant information will be recorded in the data blockchain. Bitcoin’s “account record book” is called the data blockchain. All data blockchains on the network form Bitcoin’s distributed network database system. 4. The essence of data blockchain technology is a decentralized and distributed structure of data storage, transmission and certification methods. It uses data blocks to replace the current Internet's dependence on central servers, so that all data changes or transaction items are recorded. On a cloud system, the self-certification of data during data transmission is theoretically realized. In a far-reaching sense, this transcends the traditional and conventional information verification paradigm that relies on a center and reduces the cost of establishing global "credit." This point-to-point verification will produce a "basic protocol", which is a new form of distributed artificial intelligence and will establish a new interface and shared interface between human brain intelligence and machine intelligence.

Question 2: What is the transaction process of the blockchain? Best to give an example 20 points 1. Definition
Blockchain is like an open network ledger. It originated from Bitcoin and is the underlying technology of Bitcoin. In a Bitcoin transaction, all the information recorded in the transaction is packaged into a "Block" for storage. With the expansion of information exchange, blocks are linked to each other, forming a blockchain.
2. Characteristics
Digital currency represented by Bitcoin is a peer-to-peer electronic cash system. Among them, each transaction will be broadcast to all participants in the network, and will be recorded in the ledger after multiple confirmations. This ledger is the "blockchain". Each participant will have his own ledger. In this way, when false information occurs, it can be broken through mutual verification, thereby ensuring network security.
In the blockchain, every node is equal, and there is no centralized management organization. This "decentralization" feature makes the blockchain unnecessary to rely on third parties, and its operation does not require any human effort. intervention, capable of independent self-validation. In addition, the blockchain network is open to the world, and anyone can query data through the public port, so the entire system is highly transparent.
3. Application
In short, the blockchain is a trusted database and a reliable "ledger". In the future, it will be used in cross-border payments, securities, loans, voting, etc. For example, in cross-border payments, with the security provided by blockchain, money can be sent to the world anytime and anywhere, thus eliminating many intermediate links and high handling fees.

Question 3: What is blockchain? What does it mean in layman’s terms? What is China’s attitude towards blockchain? What can blockchain do? Blockchain, a great technology that accompanied the birth of Bitcoin, is currently used in financeDomain applications can significantly reduce transaction costs and improve efficiency, which is enough to excite Wall Street. However, this is just the tip of the iceberg. Its potential applications are very broad and will subvert every aspect of our lives in the future.
Blockchain is an important concept of Bitcoin. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. One of the most basic characteristics of Bitcoin is decentralization. In recent months, financial giants have gradually begun to pay attention to Bitcoin's technology and used it in non-monetary fields, such as stock trading, election voting, etc. (1) Art Industry
Artists can use blockchain technology to declare ownership and issue numberable, 100% edition works in digital form for any type of artwork. It even includes a marketplace where artists can buy and sell through their website without the need for any intermediary services.
(2), Real estate industry
Use blockchain technology to solve various problems faced by everyone involved in real estate, including the naming process, land registration, agency intermediaries, etc.
(3), Insurance Industry
The financial industry has always been the most sensitive to advanced technology. Traditional banking and securities industry giants have been involved in the booming blockchain venture capital investment since 2014, with total global investment reaching US$1 billion within two years.
(4) P2P wallet
Personal assets can be traded through this P2P wallet in the future without going through any central institution, such as Bitcoin.
Most blockchains are in their infancy, mainly overseas. There are very few good domestic blockchain projects, so it is not recommended for any non-professionals to invest in blockchain projects. If you are very interested in blockchain technology and have a technical or financial background, it is recommended that you consider starting a business in this area. In terms of the blockchain protocol system, the lowest layer is the underlying technology of the blockchain, including the technical protocols of the blockchain, as well as some platform routing and basic algorithms; in the middle layer, some application interfaces and some credentials must be solved Issuance and verification, including some industry platform services, big data analysis, etc. This is a very rough classification, and there should be more detailed classifications; the top ones are some applications of blockchain, including finance Some applications and some applications in other aspects, the Internet of Things and so on.
Introduction to Bubi Blockchain
Bubi Blockchain has been focusing on the research and development and innovation of blockchain technology and products since its establishment. It has a number of core technologies and has achieved substantial results in many aspects. Radical innovation has resulted in a number of core technological achievements, such as: mathematically provable distributed consensus technology, fast large-scale ledger access technology, multi-chain general ledger technology that supports business expansion, and interconnection technology between heterogeneous blockchains. wait. On April 25, "Gege Points" introduced the point system to the blockchain concept, jointly opened it up with multiple parties, and issued points.and exchange to promote the circulation of points. Each cooperative institution can jointly participate in transaction verification, ledger storage, and real-time settlement; the third-party payment platform of the enterprise points issuer makes the entry and exit of points more flexible. Bubi has developed its own basic blockchain service platform, which has been applied in equity, supply chain, points, credit and other fields. Bubi has been committed to building an open value circulation network with decentralized trust as the core, allowing digital assets to flow freely.
A simple understanding of blockchain is a technology at the bottom of Bitcoin, which is also a peer-to-peer electronic cash system that can realize peer-to-peer value delivery. We should distinguish between Bitcoin, Bitcoin blockchain, blockchain and blockchain. Blockchain technology and other concepts. In countries with relatively developed finance in the past, finance and blockchain technology have a long history, and the legislation of digital currencies and blockchain networks is also very important. With the advent of the financial era, large financial institutions are studying blockchain technology. They have their own teams and conceptual technologies. Slowly, banks in various regions are also participating in digital currency discussions. The application and support of this technology are not only that. The influence of blockchain on enterprises is also huge. For larger domestic enterprises, Bubi Blockchain is also used in various equity, supply chain, points and other fields. Major domestic financial institutions and enterprises have taken a fancy to the new industry. value, they have developed their own blockchain platforms, and blockchain has instantly become a new innovative industry in China. In terms of overseas internationalization, the United States has already obtained 15 blockchain patents at the end of last year compared to China. Blockchain financial applications are entering a new stage in an all-round way. Various applications will become more and more in-depth, and related changes will also become more and more profound. It is attracting more and more attention and will form a huge new trend... >>

Question 4: What is blockchain technology? What is blockchain? How to explain the concept of blockchain? People in each industry have different understandings, and relevant explanations are gradually emerging due to more and more real-life applications. With the popularization of this blockchain technology, the related results are getting bigger and bigger. If we want to understand this technology, we must have an in-depth understanding of reality.
In the past six months, the concept of blockchain has gradually become popular in China, and a blockchain whirlwind has taken off in the financial circle. Blockchain has attracted the attention and favor of more and more people in the industry due to its unique technical advantages. Blockchain technology, which is decentralized (or multi-centered), highly transparent, cannot be tampered with, and has no single point of failure, is entering the field of vision of financial institutions and enterprises. It has at least been used in digital currency, payment exchange, registration and settlement, Digital assets, traceability and anti-counterfeiting, supply chain, Internet of Things and many other fields have moved from theoretical discussions to practical applications.
"Blockchain" was first introduced with "Bitcoin" released in early 2009. Blockchain has become the basic protocol and technical application for the launch, recording, and circulation of Bitcoin. Although Bitcoin has been controversial since its inception and cannot even be regarded as a "currency" by governments and monetary authorities, the blockchain technology used in Bitcoin has received many approvals, including *** Widespread concern, including from ** and monetary authorities.
Why has blockchain become a rapidly heating up hot technology and topic?
The most important of these may be that the launch of Bitcoin based on blockchain technology has opened up a new relationship with traditional society ( The exploration and attempt of new technologies and rule systems such as Internet user identity verification, wealth confirmation, transaction records, notarization and verification, which have little connection with offline) and are completely applied to the online world (online), provide people with the opportunity to adapt to the Internet society. Development provides alternative paths and unlimited imagination.
Judging from its application in Bitcoin, blockchain is a set of new network blocks (BLOCK, also called communities) formed by combining encryption technology with the Internet. Bitcoin configuration, netizen identity verification, and Bitcoin (value) confirmation formed by mining, Bitcoin transaction records, and extended encryption of Bitcoin cross-block flow (value transfer) (added block and transaction time identification, etc. Internet protocol rules and accounting (Ledger) system including block chain, full encryption, mutual authentication, etc., including factor) registration and verification. Precisely because Bitcoin is not a substitute for offline legal currency, but is issued and managed by non-legal currency authorities, mainly imitating the model of gold, and is completely new and decentralized protected and supported by basic Internet protocols and strict encryption technology. Internet currency (virtual currency) has thus formed a new set of currency rules and systems that are different from and not subject to real social laws, and can be bought, sold or exchanged with legal currency. It has been more than 8 years since Bitcoin was launched. There has been no record of funds or user information being stolen. Its security has been verified, and its efficiency and cost of fund settlement also have obvious advantages. This has made people's confidence in the blockchain technology used in Bitcoin continue to increase, and people have become more and more aware that although blockchain is a technology and protocol pioneered and applied by Bitcoin, the blockchain Chain is not the same as Bitcoin, and its application is by no means limited to Bitcoin. The application of blockchain can be decentralized or centralized; it can be a public chain model or a private chain model. Therefore, after Bitcoin, blockchain technology is also constantly developing and innovating, and constantly exploring new application fields, especially in the financial field.
The reason why blockchain is valued highly by more and more people is because the development and widespread application of the Internet have caused more and more economic exchanges and transaction activities to be conducted online, and the online world (or online world) society) is rapidly expanding, enriching and active, and online transactions must solve the efficiency and security protection issues of the parties' identity verification, value verification, transaction records, inspection and verification, etc., and require strict intermediaries and agreements (rules or constitutions). In this regard, traditional thinking and customary practices are to conform to the development trajectory of the shift from offline transactions to online transactions, and to integrate the prevailing rules and regulations of the real (offline) society intoThe practice has been pushed to the online (network) society, but in practice it is increasingly difficult to adapt to the needs of online transactions.
For example, for the identity verification of the parties, the natural choice is to use the information on the identity documents protected by the laws of various countries as the basis, and then add account or transaction passwords, as well as facial recognition, iris, fingerprints and other biometrics to conduct online transactions. Verification, but this method first makes the citizen identity information in the cross-border interconnected online world subject to the administrative jurisdiction of real society... >>

Question 5: The so-called "district" What is "Blockchain"? Blockchain itself is a tool called decentralization and trustlessness. For example, when you graduate from university, the current practice is to have a certificate recognized and issued by an authoritative agency as your certificate. This setting is more troublesome, because this is a piece of paper, and paper can be forged, so there will be various gaps. The issuing authority is also a person, and there will be various gaps in the middle. As long as it is related to people, whoever There are various possibilities related to media. The blockchain provides a great opportunity. As soon as you graduate, you will have a record on the blockchain. No one can change this record. This thing exists objectively. You, as a physical existence , and then as a data existence, the blockchain was born. In this case, anyone who wants to check where you graduated can easily solve the problem. This is similar to the big data often involved in social networking (WeChat) and payment platforms (Alipay, Yibao).

Question 6: What is blockchain? Can you explain the principle of 10-point blockchain in plain language: decentralized distributed accounting system
Blockchain The core of the technology is that all currently participating nodes jointly maintain transactions and databases. It makes transactions based on cryptographic principles rather than trust, so that any two parties who reach an agreement can directly conduct payment transactions without the participation of a third party.
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Technically speaking, a block is a data structure that records transactions, reflecting the flow of funds for a transaction. The blocks of transactions that have been reached in the system are connected together to form a main chain, and all nodes participating in the calculation record the main chain or part of the main chain. A block contains the following three parts: transaction information, hash hash formed by the previous block, and random number. Transaction information is the task data carried by the block, specifically including the private keys of both parties to the transaction, the number of transactions, the digital signature of electronic currency, etc.; the hash formed by the previous block is used to connect the blocks to realize the past The order of transactions; random numbers are the core of transaction completion. All miner nodes compete to calculate the answer to the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for update, thus completing a transaction.
1.1 What is Blockchain
Blockchain (BlockChain) refers to a technical solution that collectively maintains a reliable database through decentralization and trustlessness. This technical solution mainly allows any number of nodes participating in the system to associate and generate a series of data blocks (blocks) using cryptographic methods. Each data block contains all the information exchange data of the system within a certain period of time, and generates The data fingerprint is used to verify the validity of its information and chain to the next database block.
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In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. Behind all systems there is a database, which is a big ledger. Then who will keep this ledger becomes very important. At present, it is whoever owns the system who keeps the accounts. Each bank’s account books are kept by each bank, and Alipay’s account books are kept by Alibaba. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are new transaction data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write the recorded content to the ledger, and Send the contents of the ledger during this period to all other people in the system for backup. In this way, everyone in the system has a complete ledger. Therefore, this data becomes very safe. A tamperer needs to modify more than half of the system node data at the same time to truly tamper with the data. Such tampering would be extremely costly, making it nearly impossible. For example, Bitcoin has been running for more than 7 years. Countless hackers around the world have tried to attack Bitcoin, but so far there have been no transaction errors. It can be considered that the Bitcoin blockchain has been proven to be a safe and reliable system.
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1.2 Why is there blockchain innovation?
Human beings need to communicate during their activities, and communication is based on information. In the past, information circulation was not convenient enough to satisfy market participants. There is a demand for information, so intermediaries and centers are born. This centralized system has problems such as high cost, low efficiency, value dispersion, "information islands" and insecure data storage. However, due to technical and environmental factors, this system continued to operate for many years until the emergence of the Internet. The starting point of the first generation of the Internet is the TCP/IP protocol, which is an open code that implements a unified format for peer-to-peer transmission of information by all nodes on the network, and brings the basic values ​​of freedom and equality required by a global unified market into programmed, protocol-based, and reliably Execution. The Internet eliminates low-value, high-cost intermediate chains and achieves low-cost and high-efficiency global information transmission in a decentralized manner.
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However, the first generation of the Internet did not solve the problem of information credibility. Activities that can be decentralized on the Internet must be activities that do not require credit endorsement, and activities that require credit guarantee must be activities involving centralized third-party intermediaries. Therefore, Internet technology that cannot establish global credit has encountered great obstacles in its progress-people cannot use decentralized methods on the Internet.participate in any value exchange activities. To realize value exchange, people still need third-party intermediaries based on credit (such as banks, clearing agencies, exchanges). The global centralized credit system still has problems such as high operating costs, low efficiency, and vulnerability to attacks and damage. For example, each country's legal currency has different credit values ​​and incompatible clearing systems, which adds a lot of cost to global trade.
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Therefore, what the second generation Internet must break through is: how to establish global credit in a decentralized manner? Let...>>

Question 7: Explain clearly what is blockchain in an easy-to-understand manner. The English name for blockchain is Blockchain. Block literally means block, block, and chain means chain, chain. Therefore, together they are translated into blockchain.
1. Use cryptography technology to encrypt and decrypt so that records cannot be tampered with. Common blockchain encryption methods include hash algorithm, RSA algorithm, elliptic curve algorithm, etc.;
2. The huge amount of calculation needs to be supported by a reasonable reward mechanism. Because every transaction must be recorded, Bitcoin’s blockchain has more than 60 gigabytes so far. Every new transaction requires confirmation of the information related to the trading account to ensure that the transaction is valid. The huge amount of calculation requires a computer with powerful computing power to complete.
In order to encourage the participation of powerful computing power, Bitcoin provides two rewards: one is to issue a certain number of Bitcoins to these computers every day; instead, all transfer fees are awarded to these computers. (The technical term for these computers is "mining machines", and the people who hold the mining machines are called "miners".)
Biying China is working hard on the digitization of assets and has launched the digital currency crowdfunding platform Biying China.

Question 8: What is blockchain? Blockchain is a new application model of computer technology such as distributed data storage, point-to-point transmission, consensus mechanism, and encryption algorithm. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.
In May 2016, the Currency Blockchain Research Center published the first book in China that introduces blockchain in simple terms, "Blockchain: Defining a New Pattern of Future Finance and Economics." It introduces the impact of blockchain technology on future finance and economy

Question 9: What is blockchain? For the time being, this is a relatively high-end technology. It connects all nodes (which can be understood as servers) through p2p network technology. Complete data (blocks) are stored on each node. The addition and withdrawal of any node will not affect the normal operation of the chain. Data is embodied in the form of data blocks. Blocks are connected to each other and can be understood as a one-way linked list. The hash value of the nth block is generated based on the n-1th blockThe hash, the transaction recorded in the current block, and the random number are generated as parameters. In this way, if you want to modify the data of the historical block, you have to modify all the blocks from the modified block to the final block. The difficulty can be imagined.
The blockchain also introduces a consensus mechanism and an incentive mechanism. There is no way to describe it too comprehensively here. I hope everyone can discuss and learn together

Question 10: What is blockchain: This explanation of blockchain is more understandable. Blockchain (Blockchain) refers to the method of decentralization and trustlessness. A technical solution for collectively maintaining a reliable database.
In layman’s terms, blockchain technology refers to a way for all people to participate in accounting. There is a database behind all systems. You can think of the database as a big ledger. Then who will keep this ledger becomes very important. Currently, whoever owns the system keeps the accounts. Tencent keeps the accounts of WeChat, and Alibaba keeps the accounts of Taobao. But now in the blockchain system, everyone in the system has the opportunity to participate in accounting. If there are any data changes within a certain period of time, everyone in the system can do accounting. The system will judge the person who has the fastest and best accounting during this period, write his recorded content into the ledger, and record this Within a period of time, the contents of the ledger are sent to all other people in the system for backup. In this way, everyone in the system has a complete ledger. In this way, we call it blockchain technology.
Blockchain technology has become the darling of the financial community in China and has become a hot topic. Domestic Puyin Group has launched Puyin, a tea-based digital currency.

IV What is the concept of blockchain

Literally understood, blockchain includes two concepts: block and chain. The blockchain itself is composed of blocks, and the network built by linking different nodes together is the blockchain. The main function of the blockchain is to store information. Any information that needs to be saved can be written to the blockchain or read from it.

Each block stores: some valid record or transaction; information involving the block; links to the previous block and the next block through the hash of each block - which can be considered a block The unique code of the fingerprint.

Each block therefore has a specific and immovable position within the chain, as each block contains information from the hash of the previous block. The entire chain is stored in every network node that makes up the blockchain, so an exact copy of the chain is stored among all network participants.

Uses

Essentially, blockchain can be used to store any type of information that must remain intact and be more secure than going through a middleman. , decentralized and cheaper ways remain available. Additionally, since the stored information is encrypted, its confidentiality is guaranteed as only those with the encryption key can access it.

Using blockchain in healthcare. For example, health records canto be merged and stored in the blockchain. This means that every patient's medical history is secure and, at the same time, available to every authorized doctor, regardless of the health center where the patient received treatment. Even the pharmaceutical industry could use this technology to authenticate medicines and prevent counterfeiting.

Blockchain is also very useful for managing digital assets and documents. The problem with digitization so far has been that everything is easily copied, but Blockchain allows you to record purchases, deeds, documents or any other type of online asset without it being counterfeited.

Ⅵ Imtoken wallet "address, password, private key, mnemonic phrase, Keystore"

Before using imToken, there are several terms that must be deeply understood, otherwise it may cause confusion. Loss of blockchain assets, these terms are address, password, private key, mnemonic, and keystore.

If we take a bank account as an analogy, the corresponding contents of these 5 words are as follows:

Address = bank card number

Password = bank card password< br />
Private key = bank card number + bank card password

Mnemonic = bank card number + bank card password

Keystore + password = bank card number + bank card Password

Keystore ≠ Bank card number

Address = bank card number

1. Generate

After creating the wallet, a A 42-bit string starting with 0x. This string is the wallet address. One wallet corresponds to one wallet address. The address is unique and cannot be modified. That is to say, the transfer and payment addresses of all tokens in a wallet are the same. For example, the transfer and payment address of ETH in a wallet is the same as the transfer and payment address of EOS. This is different from that on the trading platform. The transfer and payment addresses for different tokens on the platform are generally different. Therefore, you must confirm the address before transferring money to the trading platform.

2. Purpose

The wallet address can be used to receive money transfers from others, and can also be used as a certificate for transferring money.

Password = bank card password

1. Settings

When creating a wallet, you need to set a password, which requires no less than 8 characters. For security reasons, it is best to make the password more complex. The password can be modified or reset. There are two ways to modify the password. One is to modify the password directly, which requires entering the original password. If you forget the original password, use the mnemonic phrase or private key to import the wallet, and set a new password at the same time.

2. Purpose

The password has two uses. One is the payment password when transferring money, and the other is the login password when importing the wallet using keystore.

3. Features

In the real world, a bank card only corresponds to one password. After the password is modified, the original password will lose its effect. But in the imToken wallet, it is different. A wallet can use different passwords on different mobile phones, and they are independent of each other and do not affect each other. For example, if a password is set in mobile wallet A, importing the wallet on mobile phone B and setting a new password will not affect the password usage of mobile wallet A.

Private key = bank card number + bank card password

1. Export

After creating the wallet, enter the password to export the private key. This private key It is a plain text private key, consisting of a 64-bit string. A wallet has only one private key and cannot be modified.

2. Purpose

In the imported wallet, enter the private key and set a password (without entering the original password), you can enter the wallet and have control of the wallet. You can transfer the tokens in the wallet.

Mnemonic phrase = bank card number + bank card password

Mnemonic phrase = private key

1. Backup

After creating the wallet, a backup mnemonic function will appear. Select the backup mnemonic and enter the password. 12 words will appear. There is a space between each word. This is the mnemonic. There is only one mnemonic for a wallet. The word cannot be modified.

2. Purpose

The mnemonic is another form of private key and has the same function as the private key. In the import wallet, enter the mnemonic and By setting a password (without entering the original password), you can enter the wallet and have control of the wallet, and you can transfer the tokens in the wallet.

3. Features

The mnemonic phrase can only be backed up once. After the backup, it will never be displayed in the wallet again, so it must be copied down when backing up.

keystore+password=bank card number+bank card password

Keystore ≠ bank card number

keystore=encrypted private key

keystore+password=private key

1. Backup

There is a backup in the walletFor the keystore function, select the backup keystore, enter the password, and a large section of characters will appear. This is the keystore.

2. Purpose

In the imported wallet, select the official wallet, enter the keystore and password, and you can enter the wallet. It should be noted that this password is the wallet password originally set on this phone. This is different from using a private key or mnemonic phrase to import a wallet. Using a private key or mnemonic phrase to import a wallet does not require you to know the original password and you can directly reset it. Set password.

3. Features

The keystore is an encrypted private key and is closely related to the wallet password. After the wallet password is modified, the keystore will change accordingly. When using the keystore to import the wallet , you need to enter a password. This password is the wallet password when backing up the keystore, and has nothing to do with subsequent password changes.

6. Conclusion

In the real world, if you lose your bank card and forget your password, you can go to the bank to help you find it, and your money is still yours. Money cannot be lost, this is the advantage of centralization.

But in the blockchain world, no one stores your wallet information except yourself. If your wallet information is lost, no one can help you retrieve it, not even the wallet company. Therefore, as long as you protect your wallet information, the property in your wallet belongs only to you and no one can take it away. This is the advantage of decentralization.

1. Forget

What will be the consequences if you forget your wallet information? There are several situations:

(1) If the address is forgotten, you can use the private key, mnemonic phrase, keystore + password, and import it into the wallet to retrieve it.

(2) If you forget your password, you can use your private key, mnemonic phrase, and import it into your wallet to reset your password.

(3) If the password is forgotten and there is no backup of the private key and mnemonic phrase, the password cannot be reset and the token cannot be transferred, which is equivalent to losing control of the wallet.

(4) If the password is forgotten, the keystore will lose its function.

(5) If you forget the private key, you can export the private key as long as your wallet has not been deleted and the password has not been forgotten.

(6) If the private key is forgotten, you can also use mnemonic words, keystore + password, and import it into the wallet to retrieve it.

(7) If you forget the mnemonic phrase, you can import the private key, keystore+password into the wallet and back up the mnemonic phrase again.

(8) Forgot keystore, as long as your wallet does not have itDelete, the password is not forgotten, you can back up the keystore again.

(9) If you forget the keystore, you can import the private key and mnemonic phrase into the wallet to back up the keystore again.

As can be seen from the above, as long as there is information in "private key, mnemonic phrase, Keystore + password", the wallet is there. Therefore, it is most important to back up your "private key, mnemonic phrase, Keystore + password".

2. Leakage

It is important to back up your wallet information, and it is also important to prevent wallet information from being leaked. What will be the consequences if wallet information is leaked? There are several situations:

(1) The address is leaked, it doesn’t matter.

(2) The password is leaked, it doesn’t matter.

(3) If the address + password are leaked, it doesn’t matter as long as the phone is not lost.

(4) The keystore is leaked, but the password is not. It doesn’t matter.

(5) If the keystore+ password is leaked, others can enter the wallet and transfer the coins.

(6) If the private key is leaked, others can enter the wallet and transfer the coins.

(7) If the mnemonic phrase is leaked, others can enter the wallet and transfer the coins.

It can be seen from the above that as long as one piece of information in "private key, mnemonic phrase, Keystore + password" is leaked, others will have control of your wallet, and the coins in your wallet will be Others move away. Therefore, the "private key, mnemonic phrase, Keystore + password" must not be leaked. Once the possibility of leakage is discovered, the coins inside must be transferred immediately.

3. Backup

Since the private key, mnemonic phrase, Keystore + password are so important, how to save them? The safest way is: handwritten paper < br />
Since the Keystore contains a lot of content, it is inconvenient to copy it by hand, and it is not safe to save it on a computer. Therefore, it is not necessary to back up the Keystore. It is enough to just copy the private key and mnemonic phrase by hand. Pay attention to the following points:

(1) Make several copies, place them in different safe areas, and tell your family members.

(2) Verify the handwritten content and import it into the wallet to see if it can be successful to prevent copying errors.

(3) Do not disseminate backup information on Internet-connected devices, including email, QQ, WeChat, etc.

(4) Teach your family how to operate a wallet.

If you need to query your blockchain assets, you can click on the corresponding blockchain asset link below, enter the asset address and click to query.

BTC blockchain query link https://btc.com/

ETH series blockchain query link https://etherscan.io/
< br /> ETC Blockchain Query http://gastracker.io/

ZEC Blockchain Query https://explorer.zcha.in/

BTS Block Chain query https://bitshares.openledger.info/#/dashboard