Light up blockchain
blockchain is an important concept of bitcoin. It is essentially a disintermediated 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 the information of a bitcoin network transaction, which is used to verify the effectiveness of its information (anti-counterfeiting) and generate the next block
blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in a sequential way according to the time sequence, and it can not be tampered with and forged by cryptography
broadly speaking, blockchain technology uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, and uses cryptography to ensure the security of data transmission and access It is a new distributed infrastructure and computing method to program and operate data by using intelligent contract composed of automated script code
extended data:
the evolution mode of blockchain is as follows:
& 9642; Blockchain 1.0 - digital currency
▪ Blockchain 2.0 - digital assets and smart contracts
▪ Blockchain 3.0 - Implementation of distributed applications in various instries
blockchain features:
1. Disintermediation. Due to the use of Distributed Accounting and storage, there is no centralized hardware or management organization in the system, the rights and obligations of any node are equal, and the data blocks in the system are jointly maintained by the nodes with maintenance function in the whole system
2. Openness. The system is open. In addition to the private information of all parties to the transaction is encrypted, the data of the blockchain is open to all. Anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
3. Autonomy. Blockchain adopts consensus based specifications and Protocols (such as a set of open and transparent algorithms) to enable all nodes in the whole system to exchange data freely and safely in a de trusted environment, so that the trust in "people" is changed into the trust in machines, and any human intervention does not work
The information can not be tampered with. Once the information is verified and added to the blockchain, it will be stored permanently. 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. Therefore, the data stability and reliability of the blockchain are extremely high5. Anonymity. Because the exchange between nodes follows a fixed algorithm, the data interaction does not need to be trusted (the program rules in the blockchain will judge whether the activity is effective). Therefore, the counterparties do not need to make the other party trust themselves by disclosing their identities, which is very helpful for the accumulation of credit
first, data security: blockchain makes data flow "at ease"
with its trustworthiness, security and non tamperability, blockchain liberates more data. A typical case is used to illustrate how blockchain promotes the generation of big data for gene sequencing. Blockchain sequencing can use the private key to limit access rights, so as to avoid the legal restrictions on indivial access to gene data, and use distributed computing resources to complete the sequencing service at low cost. The security of blockchain makes sequencing an instrialized solution, realizing global scale sequencing, thus promoting the massive growth of data< Second, data open sharing: blockchain guarantees data privacy
the government has a large number of high-density and high-value data, such as medical data, population data, etc. The opening of government data is the general trend, which will have an inestimable impetus to the development of the whole economy and society. However, the main difficulty and challenge of data opening is how to open data while protecting personal privacy. Data desensitization technology based on blockchain can ensure data privacy and provide a solution for data opening under privacy protection. Data desensitization technology mainly uses hash processing and other encryption algorithms. For example, enigma based on blockchain technology can protect the privacy of data and eliminate information security problems in data sharing by computing data without accessing the original data. For example, employees of a company can safely open the path to access their salary information and jointly calculate the average salary within the group. Each participant can know his or her relative position in the group, but he or she knows nothing about the salaries of other members< The schematic diagram of data hash desensitization processing
3. Data storage: blockchain is a kind of database storage technology that can not be tampered with, full history, strong endorsement
blockchain technology, through all nodes in the network participate in the calculation together, and verify the authenticity of their information to achieve the consensus of the whole network, it can be said that blockchain technology is a specific database technology. So far, our big data is still in a very basic stage. The data based on the consensus of the whole network and the reliable blockchain data are tamperable and historical, which makes the quality of the data gain unprecedented strong trust endorsement, and also makes the development of the database enter a new era< Data analysis: blockchain ensures data security
data analysis is the core of realizing data value. In data analysis, how to effectively protect personal privacy and prevent core data leakage has become the primary consideration. For example, with the application of fingerprint data analysis and the popularization of genetic data detection and analysis, more and more people worry that once personal health data is leaked, it may lead to serious consequences. Blockchain technology can prevent this kind of situation through multi signature private key, encryption technology and secure multi-party computing technology. When the data is hashed and placed on the blockchain, the use of digital signature technology can enable those authorized people to access the data. The private key not only ensures the privacy of data, but also can be shared with authorized research institutions. The data is stored on the decentralized blockchain and analyzed without accessing the original data. It can not only protect the privacy of the data, but also provide it to the global scientific research institutions and doctors for sharing. As the basic health database of all mankind, it will bring great convenience to solve the sudden and difficult diseases in the future
v. data circulation: blockchain protects the rights and interests related to data
for valuable data assets of indivials or institutions, blockchain can be used to register them. Transaction records are recognized, transparent and traceable throughout the network, making clear the source, ownership, use right and circulation path of big data assets, which is of great value to data asset transaction
on the one hand, blockchain can break the threat of intermediary ing data, which is concive to the establishment of a trusted data asset trading environment. Data is a very special commodity, which is essentially different from ordinary commodities. It is mainly characterized by unclear ownership and "being owned after seeing and ing", which also determines that the traditional commodity intermediary transaction method can not meet the needs of data sharing, exchange and transaction. Because the intermediary center has the conditions and the ability to and save all the flowing data, it is extremely unfair to the data procers. This threat can not be eliminated only by commitment, and the existence of this threat has become a huge obstacle to the flow of data. Based on the decentralized blockchain, it can break the threat of ing data in the intermediary center and protect the legitimate rights and interests of data owners
on the other hand, blockchain provides a traceable path, which can effectively solve the problem of data right confirmation. Through multiple nodes participating in the calculation in the network, blockchain can participate in the calculation and recording of data together, and verify the effectiveness of their information. It can not only carry out information anti-counterfeiting, but also provide a traceable path. The transaction information of each block is strung together to form a complete detailed list of transactions. The context of each transaction is very clear and transparent. In addition, when people have doubts about the "value" of a block, they can easily trace back the historical transaction records, and then judge whether the value is correct, and identify whether the value has been tampered or recorded incorrectly
with the protection of blockchain, big data will naturally become more active
the tokens of crowdfunding projects on coin Ying China platform are all developed based on blockchain technology, and relevant information will be recorded on the blockchain.
domestic companies, named XXX blockchain companies, are no longer allowed to register
Where do you want to register for a foreign company? The cost varies from country to country
or do you want to do a blockchain project and prepare to register a foundation
no wonder no one answers you
Singapore blockchain ICO company
according to the analysis of market results, at present, 70% of the companies registered in Singapore are public companies, and 30% are private limited companies in particular, there is no legal entity in Singapore called "foundation". What we usually call registered Singapore foundation refers to the type of public company Singapore public company: 1. Independent legal entity
3. No shares or share capital
4; Articles of association) to clarify the upper limit of each member's liability
Non profit: initially, it was mainly for non-profit organizations6
the company needs at least 2 company officials. At least one director must be Singaporean or permanent resident (Bajie can provide)
Singapore private limited company:
1. At least one shareholder and at most 50 shareholders can be natural persons and companies
2. At least one local director and one legal secretary (not the same person, Bajie can provide them)
3. Limited liability4
Three years before the establishment of the company, the profits of the first 100000 Singapore dollars are exempt from corporate tax, the tax rate of the company within 300000 Singapore dollars is 8.5%, and the tax rate of the part exceeding 300000 Singapore dollars is 17%is Singapore blockchain ICO a public company or a private limited company? What are the conditions
registration conditions and fees of Singapore public company:
1. Company Name: English only, company type is public guarantee limited company, ending with Ltd. or limited
Registered capital: there is no registered capital, but each member will pay in S $13. Members of directors: the requirements of directors are the same as those of ordinary companies, but there are no shareholders
Registered address: Bajie can provide Business scope: at most 2 main business activities can be selected (generally computer software, network, information technology, etc.) Legal secretary of the company: Bajie can provideregistration time: 4-6 weeks
registration conditions and fees of Singapore private limited company:
1. Company Name: English only, company type is private limited company, ending with PTE. Ltd
2. Registered capital: there is no need to verify the capital. The minimum is S $1, the maximum is S $500000, and the annual fee of Singapore business alliance is required
3. Directors and shareholders: at least one scanning of passport + ID card (address proof) of directors and shareholders shall be provided, and non Singaporean shall register. If an account needs to be opened later, at least two directors (except Singaporean local directors) shall be provided for registration
4. Registered address: local registered address in Singapore (available from Bajie)
Business scope: at most two main business activities can be selected (generally, the business scope of computer software, network, information technology, etc.) Legal secretary: provided by our companyregistration time: usually 3-4 weeks
note: after the registration of general for-profit foundation, there is no need to audit if there is no bank account, while the annual inspection and audit of non-profit foundation must be done every year after the registration
after the Singapore blockchain ICO company established the Singapore foundation, if it wants to issue currency, it will also involve four certificates:
1. White paper compliance: to prove that the projects undertaken by the foundation are in line with Singapore regulations, to prevent MAS (monetary authority of Singapore) investigation, which need to be used when going to the exchange
2. Token non securitization proof: prove that the project is non securitized, avoid causing trouble, and securitization is unable to engage in block chain related business in Singapore
3. Compliance of private placement terms: proving that the fund raising and sales concted before going to the exchange are legal and compliant
4. Compliance of public offering terms: it is equivalent to the commitment made to the majority of investors after going to the stock exchange, increasing the confidence of investors
note: the above certificates can be provided by Bajie Singapore lawyers
I would say: more than 3000 yuan
the reason why this figure is so accurate is that I worked as an intern in a national famous column of another TV station. The highest paid reporter in the office is about 3000 yuan per month< In a twinkling of an eye, seven years have passed, with great social changes and soaring prices, the monthly salary of 3000 yuan is no longer a high level. But the discussion about the monthly salary, just like the discussion about what to eat three meals a day, never stops
today, let's discuss carefully:
how to judge the monthly salary of a job in order to have a better future
focus: the key word we discussed is "future"
1
what is the future you want< Not long ago, I interviewed the boss of an environmental protection enterprise. In his early years, he left his hometown to go to Guangzhou, and three companies applied for him:
one company made an annual salary of 120000 yuan for training, one company made a monthly salary of 5000 yuan for daily chemical, and another company just started made a monthly salary of 2500 yuan for environmental protection
he was born as a chemistry teacher. He decided that the environmental protection instry had a bright future and chose the environmental protection enterprise with the lowest wage. Later, he was sent to Hubei Province to explore the market in the central region. While exploring the market, he studied the development of the instry. In the process, he also published a monograph
because of this monograph, a research institute came to him and invited him to help complete a project, and gave him a fund of 1 million yuan
it took a lot of equipment and technology to complete the project, so he resigned and registered as a company to do independent research and development. When the project is completed, the company has become famous in the instry
everyone's definition of future is not the same. At each stage of work, everyone's cognition of work and future is constantly changing. Therefore, we should appropriately adjust the relationship between "monthly salary" and "future" in our mind
a job with high salary is certainly good. But whether there is a future or not depends on everyone's actual situation
you need to accumulate more experience and master the market in the early stage of entrepreneurship. You may choose to start from the bottom with low wages, because your future is the future
if you want to support your family, you should focus on the ones with high salary, because supporting your family is your future
of course, these are not absolute
at each stage, recognize yourself. The most important thing is to know whether this job can earn money, whether it can improve itself, and whether it can have a better development prospect.
The answer to this question is the explanation of why we have to keep learning. With the progress of science and technology, more and more manual work in the world has been replaced by machine work, and what kind of people have been replaced, those unskilled workers{ RRRRR}
so if you want to avoid being eliminated by the society in this era of science and technology, you have to make yourself more and more excellent, and there is no end to learning
to learn how to manage machinery and work with the same mind instead of relying on physical strength all the time, we can be regarded as having the core competitiveness
the teacher once told us that when you compete with others in this society and in your position, you can see what kind of people are around you. If you compete with some people in their twenties when you are 30, it means that you have been left behind by the development of this era
so if you want not to be eliminated, you have to keep learning and improving yourself. Do a good job in your own field instead of muddling along. There is no need to worry about turning yourself into a cutting-edge talent