Conflict mediation blockchain service

1.

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

2. For more technical overview of betterhash protocol currently under development, it should be enough to see the speech of Matt Corallo. It is unnecessary to understand the problem of reprinting the theory of self fighting game network in this paper, because Conceptually speaking, betterhash is better objectively, and it does not need a complete code implementation to understand how important it is.

3. Blockchain is a technology, but it is not a single technology, but the result of the integration of a variety of technologies, including cryptography, mathematics, economics, network science and so on. You can think of it as a distributed shared accounting technology, or as a database, but the database is jointly maintained by all nodes in the chain, and each node has an account book. Because the account books of all nodes are consistent, different nodes can trust each other, and there is no doubt about the data, so we all say that the blockchain has realized trust technically. For detailed professional technology, you can consult some professional technology companies, such as Jinbo technology, which focuses on the development of blockchain related procts, professional R & D team and perfect after-sales service, and you can consult by telephone.

4.

On March 20, it was reported that recently, an all-star team composed of Grammy award winners and music procers officially launched the blockchain music right project tune to solve the problem of right protection and profit distribution that plagued the entire music instry

at present, the development and application of domestic blockchain is still in an early stage, the infrastructure of blockchain is not perfect, and the instry application is also in the exploration stage. Instry insiders suggest that we should seize the development opportunity of blockchain technology, and rationally view the implementation progress and application scenarios of blockchain technology, so as to avoid the investment risk caused by excessive speculation

5. The subversive characteristics of blockchain lie in the following four aspects: first, transparency. The data record of the blockchain system is transparent to the nodes of the whole network, and the update operation of the data record is also transparent to the nodes of the whole network, which is the basis of the trustworthiness of the blockchain system. Because the blockchain system uses open source programs, open rules and high participation, the data records and operation rules of the blockchain can be reviewed and traced by the nodes of the whole network, with high transparency< Second, openness. The blockchain system is open. In addition to the fact that the private information of the parties directly related to the data is always encrypted, the data of the blockchain is open to all (except the blockchain system with special permission requirements). Anyone or participating nodes can query blockchain data records or develop related applications through the open interface, so the information of the whole system is highly transparent< Third, information can not be tampered with. Once the information of the blockchain system is verified and added to the blockchain, it will be permanently stored and cannot be changed (except for private blockchain systems with special change requirements). Unless more than 51% of the nodes in the system can be controlled at the same time, the modification of the database on a single node is invalid, so the data stability and reliability of the blockchain are extremely high
Fourth, decentralization. Decentralization is the most basic feature of the blockchain, which means that the blockchain no longer depends on the central processing node and realizes the distributed recording, storage and updating of data. In the traditional centralized network, attacking a central node can destroy the whole system, while in a decentralized blockchain network, attacking a single node cannot control or destroy the whole network. More than 5% of the nodes in the master network are just the beginning of gaining control. 2019 is the first year for the commercial application of blockchain technology, and the stimulation of favorable policies will make the development of blockchain technology more stable
with the application of blockchain technology graally penetrating into many fields such as digital finance and Internet, we have a clearer understanding of the value of blockchain
blockchain has formed a situation of global competition, and all countries are seizing the development opportunities, let alone China; Therefore, there is no doubt that blockchain has become a national strategy.

6. A federal judge yesterday ruled that the IRS has access to user information on coinbase, the bitcoin and Ethernet exchange. The judgment came into force on November 30, Jacqueline; Scott & Chen 8226; Judge Jacqueline Scott Corley decided to approve the IRS petition, allowing it to investigate any possible tax avoidance in the United States
coinbase said it was aware of the existence of the judgment and would make a formal statement shortly

and the US government is celebrating this victory. Director of the IRS, John J; John Koskinen said:

like other properties, virtual currency transactions are taxable‘ The purpose of John Doe's summons is to ensure that citizens in emerging economies can abide by tax laws and fulfill their responsibilities

the coinbase user information that IRS applied to view was from December 31, 2013 to December 31, 2015. Coinbase said it would try its best to protect users' privacy when it first received the subpoena

as we all know, the attitudes and regulatory policies of countries around the world towards digital currencies such as bitcoin are not the same, and the tax policies of different countries are also different
on October 22, 2015, the European Court of Justice ruled that transactions in bitcoin and other virtual currencies would be exempt from value added tax (VAT). This decision is a major victory for the bitcoin trading community

generally, Japanese people need to pay 8% consumption tax to buy bitcoin on the digital currency exchange. In October this year, it was reported that the Japanese government planned to cancel the consumption tax generated by the purchase of virtual currencies such as bitcoin next spring

since 2015, the IRS has regarded bitcoin and other digital currencies as taxable assets. Recently, the IRS inspector general has been responsible for the Department's gaps in digital currency taxation. The American Institute of Certified Public Accountants (AICPA) has raised similar questions.

7. Brother, you're kidding. How loud is that? Do you know