2100 blockchains

①What are the classification and applications of blockchain projects

From the perspective of the current mainstream blockchain projects, blockchain projects are mainly divided into four categories: the first category: currency; the second Category: platform category; third category: application category; fourth category: asset tokenization.

Currency is mainly used as a “medium of exchange” in the field of blockchain assets, and the medium of exchange refers to general equivalents, such as gold and silver notes in the past. (“Bihui Exchange” on the transaction blockchain assets)

Platform projects refer to the establishment of technical platforms to meet the development of various blockchain applications, which can reduce the cost of developing applications on the blockchain threshold.

The scope of application projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc. It is also the fastest growing field of blockchain assets.

The asset tokenization project refers to the blockchain mapping of physical assets, that is, the physical assets are on the chain. Currently, there are no more than 10 varieties.

01 Currency

The first category is the currency project, which is also the earliest blockchain project. Currency projects mainly include projects such as Bitcoin and Litecoin. In addition, there is another type of asset that is anonymous. Its main functions include realizing payment while protecting the privacy of both parties. The more well-known ones are Dash, Monero, and zero-knowledge proofs. Coin (Zcash), etc. Currency is mainly used as a “medium of exchange” in the field of blockchain assets. The medium of exchange is the general equivalent that you use to exchange for goods. For example, gold, silver, and silver notes can be used as a medium of exchange in the past. At present, there are more than 2,100 types of digital assets in the world, and the number of currency blockchain projects has grown rapidly recently. As of June 2018, the largest market value is still Bitcoin.

02Platform category

The second category is platform-based blockchain projects. The main function of platform-based blockchain projects is to establish a technology platform to meet various blockchain application development requirements. In short, platform applications allow developers to directly issue digital assets and write smart contracts on the blockchain. A smart contract is a computer program running on the blockchain database, which can be automatically executed under the conditions set by its source code.

For example, you develop a smart contract based on a house rent agreement on the blockchain. When the owner receives the rent, it will trigger automatic execution and give the security key of the apartment to the tenant.

The main function of the platform-based blockchain project is to establish the underlying technology platform, allowing developers to develop applications on the underlying technology platform. A considerable part of the platform is still under development, as of June 2018 , the largest market capitalization is Ethereum.

03Application category

The third category is application-based blockchain projects. Application-based projects are based on blockchain development platforms (such as Ethereum) that can solve various problems in the real economy. A blockchain project with many problems in the field.

For example, Augur, a blockchain-based forecasting platform, Golem, a blockchain-based computing power trading platform, VeChain, a blockchain-based luxury traceability platform, and blockchain-based asset exchange and transfer services. OmiseGo. Using blockchain technology, these projects can better solve problems of trust and cross-border circulation. At the same time, using smart contracts and tokens on the blockchain can better achieve automatic execution and greatly improve the efficiency of social and economic activities. effectiveness. The scope of applied blockchain projects is relatively wide, covering many fields such as finance, social networking, games, property rights protection, etc., and it is also the field with the fastest value-added value of blockchain projects.

04 Asset tokenization

The fourth category is asset tokenization blockchain projects. Asset tokenization refers to linking blockchain assets to physical assets such as gold and U.S. dollars , is the blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The typical representatives are USDT against the US dollar, and Digix Dao against the gold. Each DigixDAO token represents 1 gram by the London Gold Silver Market Association certified gold. Asset tokenization has the advantages of convenient transactions and easy custody. First, asset tokenization is more convenient for transactions. Because blockchain assets can be split and have better liquidity.

For example, the current real estate needs to be transferred as a whole. If the real estate can be tokenized, it can be split and purchased, which is more convenient for transactions. Second, the tokenization of physical assets is more conducive to safekeeping. Gold and other physical transactions are prone to wear and tear and cause losses, but after the tokenization of physical assets, there is no need for physical transfer, which is more conducive to the custody of physical assets.

②What is the concept of blockchain

Blockchain is a digital ledger that can be jointly recorded, which records all transactions that have occurred and have been unanimously approved by the system. It is equivalent to keeping accounts in the way of family mobilization. You are keeping accounts, and your father and mother are also keeping accounts. They can all see the general ledger, but the information that has been saved can no longer be tampered with.

First proposed by Satoshi Nakamoto in 2008concept of blockchain. The blockchain then became a core component of the electronic currency Bitcoin, serving as a public ledger of all transactions. By utilizing a peer-to-peer network and distributed timestamp servers, blockchain databases are capable of autonomous management.

(2) Blockchain 2100 Extended Reading:

Types of Blockchain

1, Public Blockchain

Any individual or group in the world can send a transaction, and the transaction can be effectively confirmed by the blockchain, and anyone can participate in its consensus process. The public blockchain is the earliest blockchain and the most widely used blockchain. The virtual digital currencies of the major bitcoins series are all based on the public blockchain. There is only one blockchain corresponding to this currency in the world. .

2. Consortium (Industry) Blockchain

Consortium Block Chains: multiple pre-selected nodes are designated by a group as bookkeepers, each The generation of each block is jointly determined by all pre-selected nodes (pre-selected nodes participate in the consensus process), and other access nodes can participate in transactions, but do not ask about the accounting process (essentially, it is still managed accounting, but becomes distributed accounting, pre-selected The number of nodes, how to determine the bookkeeper of each block becomes the main risk point of the blockchain), and anyone else can make limited queries through the open API of the blockchain.

3. Private blockchain

Only use the general ledger technology of the blockchain for bookkeeping, which can be a company or an individual, and exclusively enjoy the writing of the blockchain Access permissions, this chain is not much different from other distributed storage solutions.

③ What is the relationship between blockchain and digital RMB

Blockchain refers to a chain formed by a series of data blocks (ie blocks) connected in the following ways: The N+1th block contains the hash value of the Nth block. Moreover, such a chain of data blocks is simultaneously stored and maintained by a large number of widely distributed server nodes, each of which has a complete copy of the blockchain.
Digital currency is another form of existence and circulation of legal tender. Compared with current paper money and coins, it exists in a digital form. The legal existence of digital currency is legal, and it was born based on blockchain technology.
Blockchain is the underlying technology of digital currency issuance, which is also the most direct relationship between the two, and they can exist independently of each other.
For reference.

④ What is the use of blockchain and what can it do

Simply and rudely tell you what blockchain is and what can it do?

What is blockchain? How does it work?

Bitcoin has become the wave of the modern internet – and with it comes the blockchain. People say that blockchain technology will lead to fundamental changes in how the internet works, how businesses work, and everything else.

But what is blockchain? Most of us don’t know much about it. If you want to understand blockchain, you can read this article carefully.

What is blockchain? To do a simple answer explanation

In the simplest terms, a blockchain is a distributed ledger.

To understand what this means, we first look at its opposite: a centralized ledger. Because blockchain technology started with finance, we will also use banks as an example below.

The following is the process of our transaction using bank debit card:

You can swipe the card to buy items in the store.

The merchant sends an invoice to your bank for an agreed-upon amount.

Your bank will verify that you may authorize the purchase.

The bank sends the money to the merchant.

Finally, the bank records this information in its ledger.

There’s a lot of technology involved here, but that’s basically it. The last step is important – the bank records all transactions made by the customer. This ledger goes all the way back to the first transaction the bank made.

The ledger is kept, maintained and supervised by the bank. You can read it in your online bank account, but you can’t change it. Full control of the bank. If it decides to make a change, there’s nothing you can do about it.

Crucially, if a hacker were to gain access to the bank’s ledger, it could cause a lot of problems. They can change account balances to make it look like certain transactions never happened, etc.

This is what makes distributed ledgers so cool.

Blockchain Network Visualization

If a bank operates on a distributed ledger, each member of the bank will have a copy of the ledger, whenever any member of the bank When a purchase is made, they tell every other member of the bank.

Each member will validate the transaction and add it to the ledger (the added record is called a “block”). It’s some heavyThis is an advantage because there is no centralized authority that can manipulate records. Hackers accessing one ledger would not be a big problem since other ledgers could easily verify it.

On the other hand, it requires a lot of work. In short, the second system is the blockchain (at least in financial scenarios).

As mentioned above, a blockchain is a decentralized list of transactions. If I send Xiaoming 2 bitcoins, I will send a message to everyone in the network saying “I am sending Xiaoming 2 bitcoins” and they will all record the transaction.

Bitcoin and blockchain

Let’s take bitcoin as an example

Bitcoin transaction

But the transaction must be verified. This is where blockchain technology gets a little complicated. Every Bitcoin wallet (we’ll do it in a second) has a public and private key.

You use your private key to send transaction requests to other members of the network and confirm that you have cryptocurrency in your account. If they do, they allow transactions to be registered on the ledger.

The mechanics of a public/private key system are complex, but it boils down to every transaction being verifiable and secure.

However, the computational cost of the entire system is high. Everyone updating the ledger needs to have a lot of power to validate transactions and modify the ledger. This is where mining comes in. Those who validate and modify use their own computing resources, and each time they receive a small transaction fee.

And they are using a lot of electricity to do it.

In this way, every transaction is verified and added to the ledger, and the person who does the verification and modification is paid. This is a reasonable system.

At the same time, it is also very secure. To change a single block, you must change every block after it. After all this work, verification will fail because other copies of the chain will show that someone has tampered with one.

How to define a blockchain is a difficult question

While the mechanics behind blockchain technology are not always intuitive, it seems to explain what a blockchain is Not too difficult. But what we describe here is just the traditional definition.

We can use this special type of blockchain for a wide range of applications; such as encrypting money, sharing medical information, sending secure messages, etc. But more blockchain-like technologies are being developed for other uses.

For example, a company might use an internal blockchain to manage issue tracking in software. Each block on the chain may represent a problem, and users can publish updates to the network. But is this a blockchain? In this case, the ledger is not public, it is only visible inside the company.

Some would say this is not a blockchain.

Other blockchain-like technologies are not encrypted. Are they still blockchain? What if it is centrally managed but uses other blockchain features? What defines blockchain technology at the lowest level? There is currently no consensus on these issues.

What is a blockchain wallet?

We usually hear people talking about bitcoin wallets, ethereum wallets, and other cryptocurrency-specific wallets. But wallet technology can be used in any system that uses blockchain.

A wallet is a piece of software or hardware that “holds” your cryptocurrency. But it doesn’t actually have anything, it’s just a place to store public and private keys. This information allows you to access the currency shown on the public ledger.

The wallet is the only record of keys. Therefore, if you lose it, you will no longer be able to access your cryptocurrency.

The future of blockchain, how will it change our lives?

One important thing about blockchain is that it is a public resource and no one really owns it because everyone owns it.

Blockchain is not just science fiction. We don’t need to understand the mechanics behind this technology, but you do need to understand that it could revolutionize our lives in the next 20 years.

It sounds bold, but remember, 20 years ago, we were still browsing the Internet on Netscape, using state-of-the-art Motorola flip phones, and buying our first DVD players. At that time, if we imagined that the computer could be held in our hand, and we could buy a car, pay for money, and watch a movie on it, it would have been considered a fantasy.

While the impact of blockchain may not be as obvious as the internet or as tangible as a mobile phone, blockchain will practically solve many of the annoyances of everyday life. Such as intermediary traps, transaction delays, etc. In our present life, middlemen are everywhere, and we take them for granted as part of our lives. If one day, these intermediaries no longer exist, you will find that the world will be a different kind.�.

Imagine that by 2040, blockchain will become a mature and widely used technology. When one day, you can’t live without the blockchain just like you can’t live without the Internet now, you will be surprised that this decentralized accounting technology has simplified the complexity and become a part of your lifestyle.

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⑤ What exactly is blockchain digital currency and virtual currency, and how?

Decentralized and open A transparent payment and collection technology. If you still don’t understand, I’ll show you how to make one. Completely free blockchain digital currency.

⑥ Briefly explain what is blockchain

Blockchain is a term in the field of information technology. In essence, it is a shared database, and the data or information stored in it has the characteristics of “unforgeable”, “full traces”, “traceable”, “open and transparent” and “collective maintenance”. Based on these characteristics, blockchain technology has laid a solid “trust” foundation, created a reliable “cooperation” mechanism, and has broad application prospects.

On January 10, 2019, the Cyberspace Administration of China issued the “Regulations on the Administration of Blockchain Information Services”. On October 24, 2019, during the 18th collective study of the Political Bureau of the CPC Central Committee, General Secretary Xi Jinping emphasized that “taking blockchain as an important breakthrough for independent innovation of core technologies” and “accelerating the development of blockchain technology and industrial innovation” . “Blockchain” has entered the public’s field of vision and has become the focus of society’s attention.

On December 2, 2019, the word was selected as one of the top ten buzzwords in 2019 by “Bite Words”.

(6) Blockchain 2100 Extended Reading:

Blockchain Financial Applications:

Since 2016, each Big financial giants have also followed the news and have launched blockchain innovation projects to explore the possibility of applying blockchain technology in various financial scenarios. In particular, Puyin Group pioneered the “blockchain +” standard digital currency.

Standard digital currency is an asset that has been authenticated, evaluated, confirmed, insurance and other processes completed by a third-party organization, and written into the blockchain through a meticulous digital algorithm to form a standard correspondence between assets and digital currency relationship, called the standard digital currency.

In order to realize the great leap-forward development of blockchain finance, in order to promote the new development of China’s economy, accelerate the circulation of global assets, and realize the dream of rejuvenation that generations of people have been fighting for, Puyin Group will launch an event in December 2016. On the 9th, the Puyin Blockchain Finance Guiyang Strategy Release Ceremony was held in Guizhou;

The meeting will discuss the digital circulation of assets realized by the blockchain, the financial transaction mode of the blockchain, and the development of blockchain services and services. The application of social and public industries will be discussed. This conference will mark the beginning of the application of blockchain finance and the transformation and development of a new financial ecosystem.

⑦ What does blockchain mining mean

In 2009, Satoshi Nakamoto invented bitcoin, and set only 21 million bitcoins to join the bitcoin network , by participating in the production of blocks and providing proof of work (PoW), you can get rewards from the Bitcoin network. This process is called mining.

The concept of “mining” is taken from the existing concepts in our real economic life, such as gold mining, silver mining, etc. Because minerals are valuable, it drives people to pay labor. dig.

Another important point in bitcoin mining is that the miners involved in mining recognize the value of bitcoin, and there are people who are willing to spend money on the bitcoin market they mine. So, Bitcoin mining makes sense.

(7) Blockchain 2100 Extended Reading

The currency characteristics of Bitcoin

1, decentralization

Bitcoin is the first distributed virtual currency, the entire network is composed of users, and there is no central bank. Decentralization is the guarantee of Bitcoin’s security and freedom.

2, circulated around the world

Bitcoin can be managed on any computer connected to the Internet. Anyone can mine, buy, sell or receive bitcoin, no matter where they are.

3, Exclusive Ownership

Manipulating Bitcoin requires a private key, which can be isolated and stored on any storage medium. No one can get it except the user himself.

4, low transaction fee

It is possible to remit bitcoins for free, but eventually a transaction fee of about 1 bit cent will be charged for each transaction to ensure faster transaction execution.

5, no hidden costs

As a payment method from A to B, Bitcoin does not have cumbersome quotas and procedures. You can pay by knowing the bitcoin address of the other party.

6, cross-platform mining

Users can explore the computing power of different hardware on many platforms.

⑧ How to make a lot of money without doing bad things in the blockchain

It is reported that the currency circle that has been silent for a long time because of the bear market has recently been broken, this time, standing at the muzzle the basis of�� is Li Xiaolai, who is called the “richest man in the currency circle” by the outside world.

On July 4, 2018, a recording of Li Xiaolai’s private conversation was circulated on the Internet. In this more than 50-minute conversation, Li Xiaolai counted the well-known figures and blockchain projects in the currency circle in a vulgar tone, and told the audience about his investment methods as a winner.

This recording, which sounds like an explosion of information, has once again brought Li Xiaolai to the forefront of public opinion. Since the recording mentioned “don’t blindly believe in value investment”, “selling air coins” and other words that are sensitive to investors in the currency circle, Li Xiaolai was identified as the dealer of “cutting leeks” in the currency circle in later public opinion.

At the same time, as a former New Oriental teacher and best-selling author, Li Xiaolai has many fans after entering the blockchain industry. But in that recording, Li Xiaolai thought that his IP and traffic were very important in the currency circle, and at the same time despised blind followers.

So what kind of person is the real Li Xiaolai? How exactly is his real wealth accumulation and investment in blockchain? What is the current state of the blockchain industry?

On July 12, 2018, Li Xiaolai accepted an exclusive interview with the media and responded to questions from the outside world who questioned him.

Media: Who are you most optimistic about in the blockchain industry?

Li Xiaolai: Wu Jihan from Bitmain. I think this person is a wounded and bloody warrior in the blockchain industry. About three years ago, I also told my friends about this, if there is an opponent in this world that I may not be able to beat, it is Wu Jihan. It’s just that we don’t happen to be on the same track, so that’s my luck too.

Media: Your hair Xiao Luo Yonghao is working hard in business, and you are working on blockchain. How do you view the relationship between blockchain and entities?

Li Xiaolai: Finance is the embodiment of the real economy. Finance cannot exist without the real economy. The blockchain will definitely drive the real industry, but in what way, it is still unknown.

I envy Luo Yonghao for being in the physical industry. His happiness is higher than mine, because making a mobile phone is much greater than my sense of achievement in an unknown industry, and it is easier for them to gain social recognition. .

Media: Has Luo Yonghao comforted you after the leak of the recording?

Li Xiaolai: Our habit is not to say anything when we are in trouble, because how to comfort others is a very difficult thing. But then we’ll talk to each other about what’s going on.

Li Xiaolai: Do you have any other questions? It’s my birthday today, and I’m going to have dinner with my wife later.

Source of content: Phoenix Network

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