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⑴ What is blockchain expansion

Expansion is when a container or carrier is not enough to support or carry the needs of existing things, we expand the capacity of the container A means of increasing the volume of the container or load to meet the increasing demand, thereby alleviating the pressure on the current container or load.
At the beginning of the birth of Bitcoin, Bitcoin founder Satoshi Nakamoto did not specifically limit the size of blocks. The maximum block size could reach 32MB. At that time, the average block size was 1~2KB.
At that time, there were few Bitcoin users and the transaction volume was not that large, which did not cause block congestion. However, with the linear rise in the price of Bitcoin from 2013 to the present, more and more users have caused congestion on the Bitcoin network. The problem of rising user transaction fees gradually emerged.
Up to now, there is a backlog of hundreds of thousands of transactions on the Bitcoin blockchain at its peak. The average transaction fee of Bitcoin has increased 376 times since September 2010. The processing speed of 7 transactions per second is obviously too high. To meet user needs, the Bitcoin community began to explore how to “expand” Bitcoin.
By modifying the underlying code of Bitcoin, the purpose of improving transaction processing capabilities is achieved.
There are two development and design solutions for Bitcoin expansion itself, namely first-layer and second-layer expansion technologies.
· The first layer of expansion technology is to improve the blockchain itself, making the blockchain itself faster and larger in capacity. In general, it is to change the content of the consensus part of the blockchain.
· The purpose of the second-layer expansion technology is to move calculations off-chain, that is, to solve problems through side-chain technology.
Expansion protocol and outcome
Expansion protocol generally requires the support of miners, and can be roughly divided into methods such as modifying the block size, soft fork, hard fork, and segregated witness.
Take Bitcoin as an example:
Bitcoin is now split into the large block Bitcoin Cash (BCH) and Segregated Witness. Segregated Witness is now recognized as Bitcoin in the market, and the big block coin is named Bitcoin Cash. It is foreseeable that in the future development direction, Bitcoin will be dominated by off-chain transactions. Including Lightning Network and side chains. These two new things are currently immature, but many people have high hopes.
Bitcoin will develop a large number of Segregated Witness transactions and make more derivative technologies based on Segregated Witness. It is most likely that technology will drive Bitcoin forward.
Bitcoin Cash will focus on on-chain transactions, focus on developing currency functions, reduce transaction friction as the main method, and profit from a wider range of on-chain users as the main development direction.
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⑵ How to increase liquidity in bk wallet

You can enter the official website to increase liquidity.
BK Wallet is a newly launched mobile blockchain wallet software by the EQ team. APP users can obtain computing power to mine and make money by registering, inviting, and completing tasks.

⑶ Characteristics of blockchain

1. Decentralization

The so-called decentralization means that because blockchain uses distributed computing and storage, There is no centralized hardware or management organization. The rights and obligations of any node are equal. The data blocks in the system are jointly maintained by nodes with maintenance functions in the entire system.

2. Openness

The so-called openness means that the blockchain system is open. In addition to encrypting the private information of the transaction parties, the blockchain data is open to everyone. Public, anyone can query blockchain data through the public interface and develop related applications. The information of the entire system is highly transparent.

3. Autonomy

The autonomy feature of blockchain is based on specifications and protocols. The blockchain adopts consensus-based specifications and protocols (such as open and transparent algorithms), so that all nodes in the system can freely and securely exchange data in a trustless environment, changing trust in "people" to machines. trust, no human intervention can work.

4. Information cannot be tampered

< p>The so-called information cannot be tampered with, that is, 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 are controlled at the same time, modifications to the database on a single node will be invalid.

Because of this, the stability and reliability of blockchain data are very high. Blockchain technology has fundamentally changed the centralized credit creation method, using mathematical principles rather than centralized credit institutions. To establish credit at low cost, birth certificates, real estate certificates, marriage certificates, etc. can be notarized on the blockchain, with a global central node, becoming something that is trusted by the world.

5. Anonymity

The so-called anonymity means that the exchange between nodes follows a fixed algorithm. The data interaction does not require trust, and the counterparty does not need to disclose its identity. The other party has trust in you, which is conducive to the accumulation of credit.

Lianxin is a blockchain application with tens of millions of member users. It has its own Quark blockchain as a public chain, qkibill open source wallet, and independent block browser. It is a completely independent A blockchain platform where users control their own data. Quark Chainchain’s innovative blockchain plus life service platform is committed to creating better blockchain services. The Chainchain Blockchain has the above characteristics and is a real blockchain chain project.

⑷ Guidelines on how to add a wallet to a blockchain address

1. Download the TP wallet, and thenFill in a public chain and add the public chain from whichever public chain you receive the airdrop from!
2. Create a wallet for whichever public chain you need, and just fill in the requirements!
3. After creating the wallet, you will have the public chain address!
4. Then check which address the project requires, copy the address of your public chain, and leave the address as required!
5. After participating in the event and leaving your address, you also need to add the contract of this currency to your wallet, so that your wallet will display this currency, otherwise it will not be displayed by default!
6. After completing the above steps, just wait patiently. Some of them will not be credited directly, and the rest will not be credited all the time, because you have to collect the addresses to transfer coins and so on! If the blockchain is congested, it will take longer!
To claim the airdrop, you need a public chain address. Public chain addresses include Huobi Ecological Chain HECO, Binance Smart Chain BSC, etc. For coins on different chains, keep the addresses of different chains!

⑸ What is the current status and prospect analysis of the development of my country’s Internet of Things?

From 2006 to 2020, the application of the Internet of Things has moved from closed-loop and fragmented to open and large-scale. Smart cities, industrial Internet of Things, Internet of Vehicles, etc. took the lead in making breakthroughs. The scale of China's Internet of Things industry continues to increase, and the industry scale maintains rapid growth. The industry scale in Jiangsu, Zhejiang, and Guangdong provinces all exceeds 100 billion yuan.

As of 2019, the size of my country’s Internet of Things market has grown to 1.5 trillion yuan. The huge market demand in the future will bring rare development opportunities and broad development space to the Internet of Things.

In recent years, the Chinese government has issued various policies to vigorously develop the Internet of Things industry. Many local governments have also issued special plans, action plans and development opinions for the Internet of Things, ranging from land use, infrastructure facilities, tax incentives, Core technologies and application fields provide policy support for the development of the Internet of Things industry. A series of application pilots and demonstrations have been carried out in the fields of industrial automatic control, environmental protection, medical and health, public safety and other fields, and preliminary progress has been made.

At present, the scale of my country's Internet of Things industry has reached one trillion yuan. The scale of China's Internet of Things industry has exceeded expectations, and network construction and application promotion have achieved outstanding results. Driven by national strategies such as network power and new infrastructure, China has accelerated the construction of IPv6, NB-IoT, 5G and other networks. The consumer Internet of Things and industrial Internet of Things have gradually begun to be applied on a large scale, and breakthroughs have been made in the development of 5G, Internet of Vehicles and other fields.

Policies promote the rapid development of my country's Internet of Things

Since the issuance of the "Special Action Plan for the Development of the Internet of Things" in 2013, the state has encouraged the application of Internet of Things technology to promote the development of production, life and social management methods. The shift in the direction of intelligence, refinement, and networking is important for improving the informatization level of the national economy and social life, improving the level of social management and public services, driving the development of related disciplines and enhancing technological innovation capabilities, and promoting the adjustment of industrial structure and the transformation of development methods. significance.

The fourth industrial revolution, characterized by digitalization, networking, and intelligence, is emerging. Internet of ThingsIt is the product of the deep integration of the new generation of information technology and the manufacturing industry. Through the comprehensive interconnection of people, machines and things, it builds a new manufacturing and service system that fully connects all factors, the entire industry chain, and the entire value chain. It is the key to digital transformation. The implementation path is the key force to realize the conversion of old and new kinetic energy.

——The above data comes from the "Market Demand and Investment Forecast Analysis Report on Application Fields of China's Internet of Things Industry" by the Qianzhan Industry Research Institute

⑹ How to build your own Blockchain

Part 1: Building your own blockchain directory from 0 to 1:
1.1 Starting from imitation, getting to know the blockchain
1.2 The basis of the blockchain : Analysis of consensus mechanism
1.3 Design principles and design methods of consensus mechanism
1.4 How to quickly clone a blockchain
1.5 How to turn Bitcoin into your own private chain – fork Bitcoin< br />1.6 How to turn Ethereum into your own private chain – fork Ethereum
1.7 How to turn Ripple into your own private chain – fork ripple
1.8 How to turn stellar into your own private chain Chain – fork stellar 1.9 How to build a mining pool and mine your own genesis block
1.10 How to develop your own blockchain wallet (Windows and MAC) 1.11 How to develop your own blockchain wallet (Android and IOS) 1.12 How to develop an online wallet similar to blockchain.info 1.13 How to increase the security and robustness of your own blockchain network 1.14 How to use coind to handle deposits and withdrawals
1.15 How to use a capital pool to build a Coin Mixing Service
1.16 How to design a new mining algorithm
This process is generally followed, but it is also very difficult for ordinary people to complete. Mature blockchain projects include Ethereum, DECENT, Bitcoin, etc.

⑺ What is imtoken

Imtoken is a blockchain digital currency wallet. imtoken provides safe and convenient digital asset services to users in the blockchain field. imtoken is an ERC20-based wallet, and non-ERC20 currencies such as BTC cannot be stored. China prohibits the sale of digital currencies to Chinese citizens.

All operations on imtoken are irreversible. Users must keep their private keys. During transactions, they need to carefully check the payee address to avoid loss or mistaken payment. If the payment is lost or mistakenly transferred, the user cannot contact imtoken customer service to solve the problem.

imtoken supports multiple chains, such as: Ethereum, Bitcoin, Cosmos, etc., imtoken can help users manage accounts and assets on the blockchain. In the world of blockchain, wallets are tools used to help users manage assets and data on the chain.

imtoken creates a digital identity for users through a set of mnemonics. Digital identity can manage multi-chain wallets at the same time, data encryption and decentralized storage. imtoken requires using an overseas Apple ID to log in to the App Store, search for and install it.

After creating a digital identity, a multi-chain wallet is generated correspondingly. A set of mnemonic phrases copied when backing up the identity are imported into each public chain wallet of imtoken. Blockchain wallets are different from traditional wallets, and users need to choose carefully.