Blockchain text design

1.

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. It is essentially 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 the information of a bitcoin network transaction, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

some areas where blockchain can be used can be as follows:

& ᦇ 9642; Smart contract; Securities trading; E-commerce; Internet of things; Social communication; File storage; Proof of existence; Authentication

&9642; Equity crowdfunding

we can compare the development of blockchain with the development of the Internet itself. In the future, something called finance Internet will be formed on the Internet. This thing is based on blockchain, and its precursor is bitcoin, that is, traditional finance starts from private chain and instry chain (LAN), bitcoin series starts from public chain (WAN), They all express the same concept - digital asset, and finally converge to an intermediate equilibrium point

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

2. Blockchain is not a specific software, just like the meaning of "database", it is a design idea of specific technology. It can be implemented in most languages, and in many ways. Jinwowo network technology
and blockchain technology is still in rapid development, relatively speaking, the current blockchain technology design idea is relatively simple, and may become more complex in the future.

3. 1-contains a distributed database

2-The distributed database is the physical carrier of the blockchain, and the blockchain is the logical carrier of the transaction. All core nodes should contain the full of the blockchain data

3-The blockchain serializes the blocks according to time, and the blockchain is the only body of the whole network transaction data

4-The blockchain is only effective for adding, Invalid for other operations

5-public-private key verification based on asymmetric encryption

6-accounting node requires that Byzantine general problem can be solved / avoided

7-consensus progress is evolutionarily stable, that is, it will not collapse in the face of a certain amount of contradictory data of different nodes

8-consensus process can solve the problem of double spending

five characteristics of blockchain:
decentralized
e to the use of Distributed Accounting and storage, there is no centralized hardware or management organization, 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
thanks to the decentralization of blockchain, bitcoin also has the characteristics of decentralization [6]
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, and anyone can query the blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent
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
information cannot 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, so the data stability and reliability of the blockchain are extremely high<
anonymity
since the exchange between nodes follows a fixed algorithm, their data interaction does not need trust (the program rules in the blockchain will judge whether the activity is effective by themselves), so the counterparties do not need to let the counterparties generate their own trust by disclosing their identities, which is very helpful for credit accumulation.

4. There are not many domestic enterprises using blockchain technology for software system development. For example, some large enterprises only study blockchain to meet the internal needs of enterprises, and they have not provided software system design and development services. Of course, a small number of domestic enterprises can use blockchain technology for software system design and development. For example, Yingtang Zhongchuang has many development schemes for its trading system. Based on the advantages and in-depth research of blockchain, the application of blockchain will have more projects landing and development.

5. This Canon laser printer icmf426dw features many functions, such as: multiple function, high-speed double-sided printing function, deformation correction function, etc. I know so much, I hope I can help you!

6. @ make complaints about blocks: Steemit based on graphene system.

7. A new payment system, you give 300 yuan to passers-by, use electronic equipment transfer, such as Alipay, Alipay verify that you have more than 300 yuan, then you give the money to Alipay, Alipay gave money to passerby a, this is a centralized mode.
the blockchain is to remove the center, you give money directly to passer-by a, and then tell everyone in the region, you give passer-by a 300 yuan, everyone will receive this information, and then when the regional information is summarized, it will be uploaded, and then the information of each block will be summarized.

8. It has nothing to do with designers, but it has a great relationship with everyone. The popularization of blockchain technology will change the existing mode of life, involving all aspects of the field.

9. At present, there are Wanda Plaza, Hong Kong Fortune Plaza (Wal Mart), commercial buildings and Times Square, which are relatively new. The older ones are department stores, qianyi mall, international trade mall and Ruili name. The more lively ones are Wanda Plaza and Hong Kong Fortune Plaza (Wal Mart). Please adopt them