Meituan blockchain

1. From an academic point of view, blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is essentially a decentralized database
the application fields of blockchain include digital currency, token, finance, anti-counterfeiting traceability, privacy protection, supply chain, entertainment, etc. with the popularity of blockchain and bitcoin, many related top domain names have been registered, which has a great impact on the domain name instry
future development and application scenarios of blockchain
1. Digital identity
many people will encounter the dilemma of "proving that my grandmother is an alt" and "my mother is my mother" when they open various certificates. With blockchain, they will never have to worry about it again. It turns out that our birth certificate, real estate certificate, marriage certificate and so on need a central node for everyone to recognize. Once transnational, contracts and certificates may become invalid because of the lack of a global central node
the tamper proof feature of blockchain technology has fundamentally changed this situation. Our birth certificate, real estate certificate and marriage certificate can be notarized on the blockchain and become something trusted by the whole world. Of course, it can also easily prove that "my grandmother is an alt" and "my mother is my mother"
2. Health care
in short, it is to use blockchain to establish a general record repository with time stamp, so as to achieve the purpose of extracting data information from different databases
3. Travel consumption
when we travel, we often use Ctrip, meituan and other apps to find and place orders for hotels and other services, and each platform gets a commission from them. The application of blockchain is to remove middlemen and create a secure and decentralized way for service providers and customers, so as to achieve the purpose of direct connection and transaction
4. More convenient transaction
blockchain can make payment and transaction more efficient and convenient. The blockchain platform allows users to create smart contracts that become active when certain conditions are met, which means that automatic payment can be released when both parties agree to meet their conditions
5. Strictly control the proct quality
if you buy an apple, under the blockchain technology, you can know the whole process from the proction of fruit farmers to the circulation. Among them, there are government regulatory information, professional testing data, quality inspection data of enterprises and so on. The smart supply chain will make the food we eat and the goods we use safer and more reassuring
6. Art of property rights protection
the creator puts his works on the blockchain. Once someone uses his works, he will know immediately. The corresponding royalty will also be automatically paid to the creator. Blockchain technology not only protects right, but also helps creators sell their works to consumers more directly without the assistance of distribution companies.

2. Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
basically, all digital currencies in the market can be called blockchain projects. Blockchain is the underlying technology of bitcoin. In addition to bitcoin, bitcoin cash, Ethereum and other old digital currencies, wikilink, Neo and other public chains are also very popular.

3. What is BHT's new currency? Its full name is bit hot token. It is a new currency launched by the currency exchange. It was launched on November 3, 2018. What is new currency? BHT can be used to buy other mainstream currencies, such as BTC, and high-quality tokens of the project side.

4. Heating building area refers to the building area within the unit door excluding the public staircase and open balcony. The area of the original closed balcony (excluding the one sealed by itself) is calculated as half. Heating building area can be calculated in the following ways: 1. Subject to the as built drawing of the house, the building area marked on the drawing (excluding the shared area) is the heating building area. 2. If the old residence has no as built drawing as the basis, the heating building area can be calculated by multiplying the use area (the rental area of the public housing) by a factor of 1.3. The coefficient is the average value obtained by measurement according to the house type and structure of various houses. If there is any dispute between the two parties, the on-site measurement shall prevail. The common wall between the two households shall be measured to the center line of the wall, and the outer wall shall be measured to the outer wall skin. The above standard is also applied to the residential buildings with double floors. 70% of the fees will be charged for the space below 2.2 meters on the top of the upper slope, and 50% for the space without radiator. For the special room type with special height, if the height exceeds 3.5m, 10% heating fee will be charged for every 0.35m increase. Heating building area refers to the building area within the unit door excluding the public staircase and open balcony. The area of the original closed balcony (excluding the one sealed by itself) is calculated as half. Heating building area can be calculated in the following ways: 1. Subject to the as built drawing of the house, the building area marked on the drawing (excluding the shared area) is the heating building area. 2. If the old residence has no as built drawing as the basis, the heating building area can be calculated by multiplying the use area (the rental area of the public housing) by a factor of 1.3. The coefficient is the average value obtained by measurement according to the house type and structure of various houses. If there is any dispute between the two parties, the on-site measurement shall prevail. The common wall between the two households shall be measured to the center line of the wall, and the outer wall shall be measured to the outer wall skin. The above standard is also applied to the residential buildings with double floors. 70% of the fees will be charged for the space below 2.2 meters on the top of the upper slope, and 50% for the space without radiator. For the special room type with special height, if the height exceeds 3.5m, 10% heating fee will be charged for every 0.35m increase.

5. 1. First of all, different brands and different series of procts have different characteristics and advantages. There are obvious differences in proct design, after-sales warranty service and many other aspects
2. It is recommended to select the motherboard suitable for indivials according to the actual use needs, use environment, actual budget, and proct comparison of physical stores or online stores
3. It is recommended to consult the local entity dealers or other major e-commerce websites about the description and specific price of the corresponding plate type, and make a comprehensive judgment and selection according to their own needs. As for which proct is better, there is no unified standard.

6. This is theoretical, that's why people ask questions about mining with galaxy, but it's hard to be true! The difficulty of mining will graally increase, and it will be found that the input and output are not very different.

7. Of course, need my ID card and mobile phone number to ensure that I operate, so as to avoid unnecessary trouble

8. 1. Now business hall cards are in principle need real name system, only in the downstream distributors here can not need ID card
therefore, the business hall is not wrong
2. Mobile phone stores belong to distributors. It can ask you to provide ID card to deal with there, also can omit not to ask
the number with 8 needs to be changed, which is their own rule
3. Mobile phone numbers that don't need ID cards are not a big problem. Pay attention to the package and cost when buying the card.