How to understand and apply blockchain Technology

1. blockchain technology uses mathematical methods to achieve distributed accounting and solve the trust problem, so as to complete the decentralization, which will bring far-reaching influence in many fields such as communication, finance, Internet of things, government management and so on
blockchain refers to the technical solution of collective maintenance of a reliable database through centralization and distrust in the past, and it is a technical way for the whole people to participate in bookkeeping. Previous bookkeeping methods were all centralized and needed centralized intermediary, whether it was traditional government, financial institutions, notarization institutions or emerging e-commerce platform and online payment platform
in economic hypothesis, information is sufficient. In fact, it is precisely because of insufficient information that there are very large intermediaries. The existence of intermediaries increases the transaction cost and raises the transaction threshold. In essence, blockchain technology is a large-scale collaboration tool. It makes direct value transfer possible by using pure technology for the first time, and continues the trend of Internet decentralization and disintermediation. Disintermediated blockchain technology will greatly subvert the information intermediary instry
blockchain technology is the basic technology for building bitcoin data structure and encrypted transmission of transaction information, which realizes the issue and transaction of bitcoin. The core of blockchain technology is that all the current participating nodes jointly maintain the transaction and database, so that the transaction is based on the principle of cryptography rather than trust, so that any agreed parties can directly carry out payment transactions without the participation of a third party
technically, a block is a data structure for recording transactions, reflecting the capital flow of a transaction. In the system, the transaction blocks are connected to form a main chain, and all the 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 formed by the previous block and random number. Transaction information is the task data carried by the block, including the private keys of both parties, the number of transactions, the digital signature of electronic currency, etc; The hash hash formed by the previous block is used to connect the blocks and realize the sequence of past transactions; Random number is the core of the transaction. All nodes compete to calculate the answer of the random number. The node that gets the answer the fastest generates a new block and broadcasts it to all nodes for updating, so as to complete a transaction.

2. The definition of Chongqing jinwowo analysis blockchain technology is as follows:
1. Blockchain is a distributed database (system) placed in a non secure environment
2. The blockchain uses cryptography to ensure that the existing data cannot be tampered with
3, the blockchain uses consensus algorithm to reach consensus on new data
the system with the above three properties is blockchain.

3. Chongqing jinwowo: blockchain is suitable for applications in scenarios where mutual trust among multiple parties is required. In essence, the consensus and verification process will introce a lot of rendant computing, and the additional computing will inevitably rece the efficiency. Therefore, without any premise, blockchain is an inefficient solution from a technical point of view.

4. Blockchain is a kind of data structure formed by orderly linking blocks, in which block refers to the collection of data, including relevant information and records, which is the basic unit of forming blockchain
e to the special data structure of blockchain, blockchain technology has four main characteristics: decentralization, transparency, contract execution automation and traceability
in the future, jinwowo network technology will focus on blockchain technology to promote the legal circulation and commercial application of big data.

5. What app? Now many of them are routines

6. We need to look at the mining income according to the model of the graphics card, and then use the income to look back at the cost time. If it is a low-end graphics card, it may not be able to be found in my life

7. Blockchain technology can solve the problem of trust in financial activities at a low cost. It will bring unprecedented efficient exchange of trust and credit for multi-party transactions, and has the potential to promote profound changes in the financial instry
the potential application scenarios of blockchain in the future are very broad. Theoretically, it can subvert all walks of life, but at present, most of them are on paper. In China, only coin Ying China took the lead in introcing blockchain into crowdfunding instry, and China Post Bank applied blockchain to asset custody.

8. Chongqing jinwowo: from a technical point of view, a block is a retrievable and tamperable data structure. Each block includes block head information and block body.