What is the virtual currency base chain

1.

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

2.

< Introction to cognition & gt

publication time: 2016

recommendation: this book is mainly for programmers. Combined with API programming, we can tell you the principle and usage of cryptocurrency, as well as how to develop related software. For non programmer readers, the first few chapters of this book are still applicable as in-depth introction of bitcoin Book pdf download: https://quant.la/Download

3.

1. Litcoin (LTC) is an improved version of digital currency inspired by bitcoin (BTC). It was designed and implemented by a programmer who worked in Google. It was released on November 9, 2011. Lightcoin and bitcoin have the same implementation principle in technology, but the creation and transfer of lightcoin is based on an open source encryption protocol, which is not managed by any central organization

2. Sunshine coin (SSC for short) is sponsored by Liu Chunyang, vice president of Jinhua express delivery Association of Zhejiang Province, instrial entrepreneur and philanthropist of express delivery instry. As a legal person, Zhejiang Dongyang Yueyin Technology Co., Ltd. is registered with the formal instry and Commerce Bureau, with a registered capital of 10 million yuan. With this as the backing and support, the sunshine elite team affiliated to the company launched the first virtual coin sunshine coin

The English name of Vicat is onecoin, which is a kind of Internet virtual currency term created by the government and is suspected of pyramid selling fraud

in 2017, CCTV announced the list of 350 fund pyramid schemes, with Vicat in the list

in May 2018, Zhuzhou County Procuratorate of Hunan Province prosecuted the last four suspects involved in the third batch of the "3.15" Vicat money online pyramid scheme case supervised by the Ministry of public security to the court

4. Amazon coin

Amazon announced in early February 2013 that it is expected to launch Amazon coins in the United States in May 2013. Amazon coins is a new virtual currency that allows U.S. users to buy apps, games and props in the kindle fire. Amazon will provide tens of millions of US dollars of Amazon coins at that time to let users try and consume the apps, games and props in the app on the kindle fire for free

5. Eth is a kind of digital token of Ethereum, which is regarded as "bitcoin version 2.0". It adopts the blockchain technology "Ethereum", which is different from bitcoin. It is an open-source public blockchain platform with intelligent contract results, and a resonance network composed of thousands of computers around the world. Developers need to pay eth to support the application. Like other digital currencies, ether currency can be bought and sold on the trading platform

4. http://www.geekpark.net/read/view/176826 Introce the link of virtual currency, don't play this, the risk is very big, high and low, unsafe, easy to be stolen, no protection.

5. Blockchain is a technology and the underlying protocol of bitcoin
markcoin claims to be a digital currency, and its source code is open source, but it can be verified by someone who understands the technology. The application scenario planning of mark coin is illegal, and it can't work in China. What's more, markcoin is a direct selling model in China. Many media and insiders doubt that it is a pyramid scheme
it is recommended that you do not touch the mark currency. If you are interested in digital currency, you can learn about bitcoin, Ruitai currency and Leyte currency, which have market depth.

6. In the Internet did not search the gold net, only found the Chinese gold net
China Gold Coin Corporation, established in 1987, is an enterprise directly under the people's Bank of China. It performs the function of selling precious metal currency. It not only shoulders the task of maintaining and increasing the value of state-owned assets, but also bears the responsibilities of the central bank's credibility, social responsibility and inheriting China's long-standing coin culture
if there is a digital currency trading platform, the rules for launching the platform are made by themselves. This platform is not well-known and has never been heard of in the circle. There are still some well-known digital currency projects in China, such as Ruitai coin, Qianjin card, Weimeng coin, and Weitou movie coin. Now, there are more equity crowdfunding projects using digital currency.

7. Maybe many people don't know about fried rice tea. If you are a friend in Guangdong, this kind of fried rice tea is a household name. If you are from other places, you may feel a little unfamiliar. This is a tea with strong local characteristics. It is the body of rice and a kind of tea for guests. It has a unique taste. I hope more people know about fried rice tea, It's different to taste fried rice tea carefully.
friends who like fried rice tea know that professional guidance is needed to really taste the characteristic fried rice tea. The charm of fried rice tea lies not in its taste and appearance, but in its many special effects, which are beneficial to people's health.
1. Fried rice tea can not only lose weight, but also improve people's health, When children eat and drink disorderly and accumulate food, drinking some fried rice tea can also eliminate food, which is healthier than taking medicine. The weight loss principle of fried rice tea: in the process of frying, all the starch contained in rice is destroyed and decomposed (of course, other nutrients are also greatly damaged, so it is a kind of non nutritive thing) and becomes activated carbon.
2. Activated carbon can be attached to the stomach The fat in the intestines is sucked away and discharged from the body; Scraping intestines and oil;, It should be noted that when cooking, it's just like the usual way of cooking porridge. The newly fried brown rice can't be mixed with water immediately; When the rice is cooled and cooked, cold water or warm water should not be used, but boiling water must be added, otherwise the brown rice grains will be cooked into & quot; Paste soup & quot When cooking rice tea, there is no need to add any seasoning, usually when drinking, it is seasoned according to its own taste

8. You need level 30
to learn mining skills. It's time to go to
field mining
high grade mining needs upgrading. Level 1 to Wuliangshan and Jiange, level 2 to Xihu, level 3 to Erhai, level 4 to Yannan, level 5 to Longquan, level 6 to Cangshan. I don't know about level 7 or above
hee hee