Market background of blockchain mall

1. This instry, which needs policy support, will be led by the government. It is in the charge of the Management Committee of Changsha high tech Zone. The sponsors are mainly Hunan souyun, China Securities and Technology Corporation, etc., so that enterprises in the circle of blockchain can have better communication. It is said that some blockchain salons will be held in the future.

2. Traditional transactions on the Internet need to rely on trusted third-party institutions to process electronic payment information, and both parties trust the third-party institutions However, the third-party intervention also has many disadvantages:< Br > - high transaction cost (a certain handling charge)< Br > - Privacy exposure (the third party needs to provide the information of both parties in order to verify the information)< Br > -... < br > imagine that if the third-party organization is removed and the two parties trade directly, how can the transaction take effect? The emergence of blockchain technology is to solve this problem. Blockchain is based on the principle of cryptography rather than trust mechanism, which makes the two parties reach an agreement to trade directly and publish it to all witnesses.

3. Since 2008, Nakamoto has proposed bitcoin, a peer-to-peer cash trading system. Since then, it has entered the eyes of the world.

4. Traditional transactions on the Internet need to rely on trusted third-party institutions to process electronic payment information, and both parties trust the third-party institutions Taobao buyer - Taobao platform - Taobao seller)
but the third party intervention also has many disadvantages:
- high transaction cost (a certain handling charge)
- Privacy exposure (the third party needs to provide the information of both parties in order to verify the information)
-...
imagine that if the third-party organization is removed and the two parties trade directly, how can the transaction take effect? The emergence of blockchain technology is to solve this problem. Blockchain is based on the principle of cryptography rather than trust mechanism, which makes the two parties reach an agreement to trade directly and publish it to all witnesses.

5.

The application prospects of blockchain are mainly in the fields of finance, Internet of things and logistics, public services, digital rights and insurance

1. Blockchain has great potential applications in international exchange, letter of credit, equity registration, stock exchange and other financial fields. The application of blockchain technology in the financial instry can eliminate the third-party intermediary link and realize the point-to-point direct docking

2. Blockchain can also be naturally combined in the field of Internet of things and logistics, which is considered as a promising application direction of blockchain. The establishment of credit resources in the blockchain can double improve the security of transactions and improve the convenience of Internet of things transactions. It can save time and cost for the application of intelligent logistics mode

3. Blockchain is closely related to people's proction and life in public management, energy, transportation and other fields. The decentralized and fully distributed DNS service provided by blockchain can realize the query and resolution of domain name through the point-to-point data transmission service between nodes in the network

4. Through blockchain technology, works can be authenticated to prove the existence of text, video, audio and other works and ensure the authenticity and uniqueness of ownership. After the works are confirmed on the blockchain, the subsequent transactions will be recorded in real time to realize the full life cycle management of digital rights, and can also be used as a technical guarantee in judicial evidence collection

5. In terms of insurance claims, insurance institutions are responsible for fund collection, investment and claims settlement, and often have higher management and operation costs. Through the application of smart contract, there is no need for the applicant to apply or the insurance company to approve. As long as the claim conditions are triggered, the automatic claim settlement of the policy can be realized

extended data:

the core technology of blockchain

1. Consensus mechanism, through the voting of special nodes, completes the verification and confirmation of transactions in a very short time; For a transaction, if several nodes with unrelated interests can reach a consensus, it can be considered that the whole network can also reach a consensus. The goal of blockchain consensus mechanism is to make all honest nodes keep consistent blockchain views

2. Asymmetric encryption requires two keys for encryption and decryption, which are public key and private key. The public key corresponds to the private key. The public key is used in the process of data encryption, and only the corresponding private key can be used to decrypt; On the contrary, the private key is used to encrypt the data, and only the corresponding public key can be used to decrypt the data

6. Of course, blockchain technology is a current trend, even the prime minister's advocate learning. Shopping mall is also shopping for high-end consumer goods. If you are in the WEN market, you will often see 3.15 places in the shopping mall, where you can see where you have proced high imitation procts. Anyway, I advocate the establishment of block chain shopping mall.

7. First, the computing power sources of POS and POW are different
first of all, in POW mining, it is the computing speed of mining machines (CPU, graphics card, ASIC, etc.) that determines who can dig the ore better, while in POS there are differences. POS mining does not require you to purchase additional mining equipment, nor does it take up a lot of computing resources

Second, the number of coins issued by POS and POW is different
originally, in pow, the bitcoin proced by a block has nothing to do with the coins you held before. However, in POS, the more money you originally hold, the more money you dig. For example, if you have 1000 coins that have not been used for half a year (183 days), the amount of coins you dig is as follows:
1000 (number of coins) * 183 (age of currency) * 15% (interest rate) = 274.5 (coins)

8.

You need to bring your social security card and ID card

one, two ways to apply for printing:

1, provide my valid identity card to the local social security agency to apply. In case of entrusting others to handle the case, the valid identity documents of the entrusting party and the entrusted party shall be provided at the same time

2. With social security card (citizen card), second-generation ID card or certified online user name, social insurance self-service all-in-one machine can print insurance certificate, and social insurance agencies can be required to affix "social insurance business seal"< 2. The insured unit shall provide the letter of introction and the applicant's valid ID card to the local social security agency for application

if the social security bureau can't find your social security payment records, it's impossible to issue a social security insurance certificate for you, and your work unit needs to have the insurance records for you

extended information:

social security certification disclosure process

social security certification is one of the most important materials, such as children's ecation, pension and some transfer, but most people do not know how to open social security certification and what matters need attention. We need to make some necessary preparation and study

but now the social security policy stipulates that any person who registered residence is to move in through legal means. The employer should timely handle the social security payment proceres for the transferred personnel to the city, and pay the social security fee according to the personnel standards of Guangzhou Municipality. p>

just provide the household register or ID card to inform the employer, and let the employer handle the change proceres for it. If the employer does not agree, it can report to the relevant departments and use the weapon of law to safeguard its legitimate rights and interests

the employer should pay the social security fee for the employee from the date of establishing the labor relationship with the employee. If the payment is not made, the unit can go to the counter to handle the payment proceres for the employees with the help of the labor contract. With the development of the Internet, many certificates can be downloaded and printed online. For those who fail to pay after participating in the insurance as an independent indivial, they need to carry their ID cards to the counter of the local tax bureau to handle the supplementary payment proceres within three months of the interruption of payment

for those who are paid by third-party organizations such as "haoyibao", they can help provide social security certificates