Resume of luoxiang 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
cat简介
in the future, jinwowo will continue to tap the value of blockchain technology in the commercial field, give full play to the advantages of big data services, add value to user behavior, break the ice for the development of small and medium-sized enterprises, and build a real, efficient, safe and honest Internet community of destiny.
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ICO is the full name of initial coin offering, short for the first public offering of digital token, which imitates the IPO of the stock market. That is to say, the project sponsor can obtain financing by issuing initial token through blockchain technology, but the initial token cannot be purchased in legal currency (RMB, US dollar, etc.), because it violates the laws and regulations of various countries on financing, and needs to be purchased with digital assets with good liquidity such as bitcoin and Ethereum
At present, the supervision of ICO needs to be improved, which requires us to be careful in screening I"in fact, there are only a few criteria for evaluating projects. Is it a real blockchain? Is it necessary to use blockchain? Has the team really been engaged in the development of blockchain Technology (many people have fake resumes, blockchain technology is still difficult, and there are not many mature technicians)? Is there any entity registration (to prevent runaway) Lu Lihua, head of the world wide chain market, said
at the same time, a full and accurate white paper is very important. Generally, there will be a brief introction in the white paper, which will tell you what problems to solve, what is the principle behind, what is special, what is the value, how to divide the financing token, how to use the token, what are the ICO rules, what is the background of the team, and whether it is a project that can be implemented. Interestingly, there was an ICO project white paper before that, in which Satoshi Nakamoto's name was written as Zhong bencong, the degree of deception was astonishing
of course, even if the above elements are complete, ICO projects still have risks. After all, future technologies will take a long time to test