Global blockchain

1. We can only talk about domestic examples. High quality application platforms such as the blockchain rental platform in xiong'an New District of Hebei, the blockchain government affairs platform in Chongqing, and the SMIC blockchain public service platform in Changsha of Hunan are the first to lead into the era of blockchain 3.0.

2.

Blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

1, decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

3. IMC global beauty chain is the implementation of blockchain application scenarios, which truly combines virtual and entity perfectly. Through blockchain technology, the integration of procts and blockchain of beautiful instry can be realized, and the win-win situation of consumers, franchisees, investors, enterprises, instries and countries can be effectively realized.

4. Xu Mingxing, as a veteran of the blockchain instry, has a very forward-looking vision. He has experienced the whole development process of the blockchain instry. Xu Mingxing realizes that many procts of domestic cutting-edge instries still rely on the introction of foreign technology or direct import. As an emerging instry, if talents are equally important in the field of blockchain, but we do not pay attention to the cultivation of talents, the future of blockchain will be restricted by developed countries just like many traditional instries because of talents.

5. I think it's better to choose the option of AXA. It's supervised by the authority. It's easy to operate. You can watch the rise and fall and make money.

6.

1. This is last year's news: some netizens calculated a sum of money, and converted the computing power of tianhe-2 into mining efficiency. About two to three bitcoins can be g out in an hour, which is 15000 yuan

2. It can dig up 360000 yuan a day. Mayor Chen Jianhua said that tianhe-2's daily electricity bill is 300000 yuan, which seems to make a little money. However, if labor costs, depreciation of machinery and other costs are taken into account, "mining" will not make much money

3. This is the data provided by a press release at the end of November 2013. Of course, according to the current computing power, we can't dig so many bitcoins, and the revenue will be lower. Even tianhe-2 mining is a loss

4. After all, bitcoin mining is a very professional business. It needs a professional bitcoin miner. And the update speed of bitcoin miner is amazing

5. Taking Avalon mining machine as an example, it has been upgraded to three generations of chips, and the fourth generation will come out soon

7. No problem. Leyte is the heavyweight currency in the okex trading area.

8. I usually sell in the legal currency trading area.

9. Currency transaction does not involve legal currency, so first transfer the fund to the currency account in the fund management interface, click the currency transaction area, and select the currency pair to be traded for transaction.