Ethereum green
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
Public chain, also known as "public chain", refers to the blockchain that anyone in the world can enter the system at any time to read data, send confirmatory transactions and compete for bookkeeping. The public chain is generally considered to be "completely decentralized", because no indivial or institution can control or tamper with the reading and writing of data in it. In terms of application, blockchain public chain mainly includes bitcoin, Ethereum, super ledger, most counterfeit currencies and smart contracts. The ancestor of blockchain public chain is bitcoin blockchain, which has the following characteristics:
1, open source code
upload the code to GitHub, and everyone can get complete blockchain data by downloading, Accept the test of the public
2, complete decentralization
anyone can become a node, each node is open, everyone can participate in the calculation of the blockchain, any node is not permanent, but phased, and any center is not mandatory for nodes. Anyone can read and send transactions, and transactions can be effectively confirmed on the blockchain. Anyone can participate in the consensus process. The consensus process determines whether a block can be added to the blockchain and the exact current state. Everyone can get financial reward from it, which is proportional to their contribution to the consensus process. These public chains are generally considered to be "completely decentralized"
3. Developing decentralized applications
through this public chain, developers can easily develop centralized applications. Public chain can protect the rights and interests of users from the influence of program developers
I had a similar problem when I went from okex to HTC yesterday
[silverfish cleaning method]
1. Prepare a small basin of clean water, pour the fish in, and then gently stir with hands to let the dirty things settle
in fact, we should look at this intercept in combination with the economic problems you study. The most common example is the relationship between consumption and income. Many books use this example. If the income is 0, the intercept term is spontaneous consumption. In this way, the spontaneous consumption is different in different regions, and the intercept term is different. You can sort the spontaneous consumption
however, for many panel models used in practice, this intercept term is usually not explained. Because the data processing is different, the economic significance of the conclusion is different. If you use natural logarithm for all data, after you express the mathematical model, you will know what the intercept term is
therefore, in the final analysis, your economic model is the most important.
Ethernet configuration
connect the network cable to the mid, not the telephone line. At this time, your wired network connection is complete
as long as you connect according to the above method, if it's a dynamic address, you can automatically connect. If it's a static address, you need to turn on the settings and select wireless and network.
check the same green after Ethernet, select Ethernet settings and check Ethernet (here it's automatically checked) if you use dynamic IP in your home or office network, You'll connect to the Internet yourself. Use static IP settings (if you use static IP, check the use of static IP as green)
if you set static IP, you need to manually enter IP address, gateway, subnet mask and DNS
these configurations are based on the configuration of your own network. After connecting to broadband, an icon will also appear on the top of the machine screen, indicating that the network is connected at this time.
EOS can be understood as enterprise operation system, which is a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture, which aims to extend the performance of distributed applications. Note that it is not a currency like bitcoin and Ethereum, but a token based on the EOS software project, known as blockchain 3.0. The main features of EOS are as follows:
1. EOS is a bit similar to Microsoft's windows platform. By creating a developer friendly underlying platform of blockchain, it supports multiple applications running at the same time and provides the underlying template for the development of DAPP
2. EOS solves the problems of delay and data throughput by means of parallel chain and dpos. EOS can process thousands of data per second, while bitcoin has about 7 transactions per second, and Ethereum has 30-40 transactions per second
3. There is no service charge for EOS, and the general audience is more extensive. The network and computing resources needed to develop DAPP on EOS are allocated according to the proportion of EOS owned by developers. When you have EOS, it is equivalent to having computer resources. With the development of DAPP, you can lease your EOS to others. From this point alone, EOS has a wide range of value. To put it simply, if you have an EOS, it is equivalent to having a set of rent to collect rent for others, or having a piece of land to rent for others to build a house< br />
however, different switches may be slightly different. For example, for some switches, the green light indicates that the network is normally connected, the green light indicates that there is data transmission, and the yellow light indicates that although the physical line is connected, there is a problem with the IP address or other settings, and the network is not normally connected; Also (it seems to be D-Link). The green light indicates normal communication. If a port is connected to a cascade switch, the receiver of this port will display a yellow light......... As long as the network can communicate normally, these are not particularly important, if you want to understand clearly, look for the relevant instructions to see it!!!
Real estate name: Beijing yicuiyuan
alias: yicuiyuan (yicuishangfu) | yicuishangfu | North District of yicuiyuan | South District of yicuiyuan
City: Beijing
real estate location: yaojiayuan Road, opposite to Dongfang Jiye Auto City
developer: Hutchison Huangpu Real Estate Group
ownership period: 70 years
building type: multi-storey, slab building, slab tower combination,
bus route: Yuntong 122: yaojiayuan west station
650: yaojiayuan east station, Pingfang Xikou station, Pingfang station
499: yaojiayuan west station
619: Pingfang Xikou station, Pingfang station, yaojiayuan west station
Ye 25: yaojiayuan east station, Pingfang Xikou station, Pingfang station
595: yaojiayuan Xili station, yaojiayuan north station, lijiafeng station
989: Pingfang station, Yaojiayuan west station
route 16: yaojiayuan east station, Pingfang Xikou station, Pingfang station
route 585: yaojiayuan east station, Pingfang Xikou station, Pingfang station, yaojiayuan Xili station, yaojiayuan North Station
route 640: yaojiayuan east station, Pingfang Xikou station, Pingfang station
route 114 Gaofeng bus: lijiafeng station
route 499 fast: yaojiayuan west station
route 686: Pingfang station, Yaojiayuan west station
no.417: Pingfang Xikou station, Pingfang station, yaojiayuan west station
no.468: yaojiayuan east station, Pingfang Xikou station, Pingfang station
Yuntong No.111: yaojiayuan west station
No.412: Pingfang station
No.496: Pingfang Xikou station, Pingfang station, yaojiayuan west station
no.673: yaojiayuan east station, Pingfang Xikou station, Pingfang station
no.672: Pingfang Xikou station, Pingfang station, Yaojiayuan west station
350 Road: yaojiayuan east station, Pingfang Xikou station, Pingfang station
553 Road: huangshanmudian Road North Station
494 Road: yaojiayuan Xili station, yaojiayuan North 1st Road Station
431 Road: yaojiayuan west station, lijiafeng station, Chaoyang District, yaojiayuan Xili station
502 Road: Pingfang Xikou station, Pingfang station, yaojiayuan west station
Planning Information: it covers an area of 60000 square meters, The plot ratio and greening rate are 33.5%. There are 11 buildings in total. The ratio of parking space to parking space is 1:1. The parking fee on the ground is 150 yuan a month, and that on the ground is 550 yuan a month. It is changed every three months. At present, the parking spaces of the property are not for sale
peripheral supporting facilities: yaojiayuan District, Chaoyang District, located between the East Fourth Ring Road and the East Fifth Ring Road, adjacent to CBD business district, Yansha business district and Lido business district, with yaojiayuan Park, Chaoyang Sports center, red scarf Park and Chaoyang Park
internal supporting facilities: Safety Management: security, monitoring Access control password lock
health services: regular cleaning
entrance of the community: there are two districts in phase I, three gates in the South District, East Gate in the South and North Gate in the North District
(the information contained is for reference only, and the final information is subject to the information of the sales office.)
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