Inter core blockchain Shanxi

1.

The public chain is open to all, the private chain is open to indivials who meet specific conditions, and the alliance chain is open to authorized organizations or institutions

public chain, also known as public blockchains, refers to a consensus blockchain that can be read by anyone in the world, sent by anyone, and effectively confirmed

private chain, also known as fully private blockchains, refers to the blockchain in which the write permission is completely in the hands of an organization, and all nodes participating in the blockchain will be strictly controlled

alliance chain, or alliance blockchains, refers to a blockchain that is managed by several organizations or institutions. Each organization or institution controls one or more nodes and records transaction data together. Only these organizations and institutions can read, write and send transaction data in the alliance chain

< H2 > extended data:

blockchain has three types: public chain, private chain and alliance chain

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 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, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

< H2 > reference: blockchain network

2.

Blockchain concept stocks revealed: only 58 of 197 companies have real business landing, and 37 of them are just hot

since October 28, blockchain concept stocks have performed well, with daily trading limit. According to zinc link, these & quot; Blockchain & quot; The main business of listed companies is not blockchain, and only a few of them have real application, most of them are still in the exploration stage

according to Dongfang fortune choice, on October 28, there were 153 companies in the A-share blockchain concept sector, and as of November 20, the number had increased to 197

through sorting out the public data such as interactive trading platform, announcement and relevant news, zinc link found that only 58 of 197 A-share blockchain listed companies have real business landing, and 37 companies said that they are not involved in any blockchain business at present

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3. This link. If you start the geth client locally, the page will display the following information:
you can see the account balance under balance (ethers). The unit is ether

2. In the command line, geth console. Starts the control terminal of Ethereum
when & quot& gt;& quot; At the prompt, enter Web3. From Wei (ETH. Getbalance (ETH. Coinbase), & quot; ether") After that, press enter to confirm
the account balance will be displayed. The unit is ether.

4. To put it bluntly, open source is sharing. In communities like Baptist publication, you can publish your research results on blockchain. Because a person's development and Research on technology is limited, after sharing, you can let everyone continue to research on your achievements or bottlenecks.

5. The characteristics of the public chain in jinwowo network analysis blockchain technology are as follows:
(1) it is jointly operated by multi agency alliance< (2) the data is confidential

(3) data nodes are selected in advance< (4) the connection speed between nodes is fast< (5) the cost of operation and maintenance is low< (6) the transaction speed is fast and the transaction cost is low

(7) data can be modified by Federation.

6. The technical characteristics of alliance chain in jinwowo analysis blockchain are as follows:
alliance chain refers to a blockchain with several institutions participating in the management. Each institution runs one or more nodes, and the data only allows different institutions in the system to read, write and send transactions, and record transaction data together<
technical characteristics of alliance chain
1.
low cost operation and maintenance
2.
high transaction speed and good scalability
3.
alliance maintenance,
is more reliable than private chain

7.

Zhonghan blockchain Co., Ltd. is a limited liability company (invested or controlled by a natural person) registered on May 16, 2018, with its registered address at-13c1, B / F, Jinshan building, No. 8, Shanxi Road, Gulou District, Nanjing

the unified social credit code / registration number of Zhonghan blockchain Co., Ltd. is 91320106ma1wjm5j9b, and Meng Pengyu is the legal person of the company. At present, the company is in business

the business scope of Zhonghan blockchain Co., Ltd. is: blockchain technology R & D, technical services, big data R & D and application services, computer software and hardware technology development, digital integral system technology development, e-commerce technology development and technical services; Data processing; Internet information technology development, technology service, technology transfer and technology consultation; Database management, supply chain management; Website design and construction, web design, commemorative coin design; Game software development and sales; Business information consulting, enterprise management consulting, real estate information consulting; Design, proce, act as an agent and publish all kinds of domestic advertisements; Real estate development (business can only be carried out after obtaining a license); estate management; Sales of computers, software and auxiliary equipment, electronic procts, communication equipment (except satellite TV broadcasting ground receiving facilities), daily necessities, handicrafts, clothing, cosmetics, cultural goods, sporting goods and household appliances Projects that need to be approved according to law can be operated only after being approved by relevant departments)

view more information and information of Zhonghan blockchain Co., Ltd. through aiqicha

8. Many cars, See the following table
--- station -------- arrival -------- departure time
passenger transport category
--- whole journey time
Ruian station
passenger transport center station
6:30-18:30 (every 8 minutes)
express
about 50 minutes
Ruian station
passenger transport center station
6:30-20:00 (every 10 minutes)
ordinary
about 1 hour
for reference.