What is Blockchain Technology?

You all have heard about Bitcoin and Cryptocurrency and Maybe you know a lot about them. If you want information about Bitcoin and Cryptocurrency, what is Cryptocurrency?  You can view this article. (What is Blockchain Technology?)

What is Blockchain Technology?

There is a lot of volatility in the price of cryptocurrencies so the number of investors seems to be low. But if you look at the other side of cryptocurrency, it’s the security behind it. 

Blockchain technology is used for security in cryptocurrencies and is claimed to be the most secure technology ever. 

Blockchain is used in many places along with cryptocurrency. So today we are going to learn in detail what a blockchain is. 

What is blockchain technology and how does it work? What are the basics of blockchain? 

There are different types of databases, of which blockchain is a special type. Blockchain is the process of storing information in blocks and connecting them can to form a chain.

Once data is stored or recorded in a chain block, it becomes very difficult to modify or hack it. 

An important difference between databases and blockchain is their method of storing data. 

In the blockchain, information is collected and set up in groups, also called blocks. 

Blocks have a specific storage capacity, and when these blocks are filled with information up to their capacity, then they are connected to the previously filled block. This creates a chain of blocks known as a blockchain

The database structure stores your data in tables, while the blockchain structure stores your data in blocks within the chain.

From this, we understand that all blockchains are databases but not all databases are blockchains. 

What is the main purpose of Blockchain? 

main purpose of block chain?

Blockchain does not use any kind of centralized server, so there is no need to store information twice as in the old banking system. 

Secure transfers of money, assets, contracts, etc. to bank or government accounts require third-party intermediaries, but not in blockchains.

A variety of information can be stored on the blockchain, but the most common use has been for transactions by far.

In the case of Bitcoin, blockchain is used in a decentralized way so that no one individual or group has total control – on the contrary, it is controlled collectively by all users.

Decentralized blockchains are unobstructed, meaning that once filled data is irreplaceable.

In Bitcoin, this means that whatever transactions are made are permanently recorded and anyone can view them.

The technology meets the needs of centralized administrators for authentication and authorization.

As a result, this new technology creates a kind of digital connection.

Can Blockchain be hacked?

can blockchain technology be hacked?

No, because blockchain technology is very difficult to hack. 

In blockchain technology, data is not stored on a central server but on a large network of computers, where records are constantly checked and verified. This makes hacking more difficult. 

For example, if a hacker is trying to steal from one room in the same house, it is easier to do so. However, if someone tried to steal from hundreds of rooms and each house had different information on how to open the locks in each house, it would be very challenging for the thieves. 

Still, this is not impossible! The entire network has not been hacked since Bitcoin came into existence in 2009. 

There are instances of exchanges or wallets being hacked, but not the entire network. There are potential security risks at various stages of the Bitcoin trading process.

Bitcoin is stored in a wallet and exchanged through its digital currency exchange. 

Therefore, it is not difficult for users to access other people’s wallets and steal their coins. 

Although the two-factor identification process is commonly used as a security measure, if hackers are able to access some of the user’s cryptocurrency-related personal information, they can also break into wallets and steal bitcoins. 

So, all bitcoin investors have to take proper precautions to protect their coins.

 Who invented blockchain Technology

who invented blockchain?

Blockchain was launched only 10 years ago. This online cash currency was created by unknown individuals behind Bitcoin, under the pseudonym Satoshi Nakamoto.

History of blockchain:

history of blockchain technology?


Stuart Haber and W Scott Stornetta describe for the first time a secret chain of blocks. 


Computer scientist Nick Szabo works on the decentralized digital currency ‘Bit Gold’. 


Stephen Konst publishes the theory of cryptographic security chains, as well as implementation ideas. 


Developers working under the pseudonym Satoshi Nakamoto released a white paper setting up a model for the blockchain.


Nakamoto implemented the first blockchain as a public account for transactions made using Bitcoin. 


blockchain technology has been isolated from the currency and its potential has been explored in other economic, inter-organizational transactions. 

This is where Blockchain 2.0 was born, which refers to applications beyond currency. 

The Ethereum blockchain system introduces computer programs into blocks, it represents financial instruments like bonds and is known as smart contracts.

What are the advantages of blockchain technology? 

benefits of blockchain technology?

Better Transparency 

Blockchain allows an organization to use a fully decentralized network where centralized authority is not required, thus improving system transparency.

Enhanced Security

Each node keeps a copy of the transactions made on the network, and this fact enhances the security of the blockchain. Therefore, if a person ever wants to change a transaction, he is not able to do so because other nodes do not allow him to do so. 

Low cost (Reduced Cost)

By using blockchain, organizations can save a lot of money on dealing with third-party vendors. Since Blockchain has no centralized organization, there is no need to pay for any vendor.

Decentralized System Blockchain

Blockchain is a decentralized system. This means that there is not a single database for storing information, but there are many copies.

Is there any future for blockchain Technology

Is there any future for block-chain? 

In this network, a copy of the blockchain is available to every user. Therefore, in order to tamper with the network, the information in the entire chain must be changed. 

Thus, hacking is almost impossible with such security. This is why blockchain is the future of modern data transfer technology.

How do blockchain companies make money? 

How do blockchain companies make money? 

Blockchain companies make money by contracting with other companies. The contract with other companies to provide blockchain infrastructure by designing and developing blockchain applications. They also organize services for a specific period can too by signing a contract.

Which companies use blockchain technology?

Which companies use blockchain technology?


BBVA is one of the leading companies in the field of blockchain technology. Red Electric Corporation and BBVA have recently developed an advanced system using this advanced technology.

Intesa Sanpaolo

Banca Intesa Sanpaolo – is an Italian banking group that uses blockchain technology to bind trade data.


Unilever is one of the blockchain companies in the supply chain segment and currently using this technology to manage the tea industry.

Change Healthcare

Change Healthcare is one of the largest users of blockchain technology. They are using this technology working on the Intelligent Healthcare Network. 

AIA Group

AIA Group is also one of the largest blockchain companies in the insurance sector. The company launched a project for bancassurance solutions with other partner banks.


Shell is one of the energy companies using blockchain technology. The company plans to use blockchain to trade natural oil with Sinochem Energy Technology Co. Ltd. and Macquarie.

What are the disadvantages of blockchain technology? 

What are the disadvantages of block-chain technology? 
  • Blockchain is not a distributed  Computing System.
  • Some blockchain solutions use a lot of energy.
  • Once the information is entered into the blockchain, it cannot be changed again. 
  • Blockchains are sometimes inadequate.
  • Blockchain is not completely secure.

What are the problems with Blockchain Technology? Why is Blockchain not widely used?

The current power consumption of blockchain is high and it is not possible to make any changes to it.

The basic problem is that all transactions in the blockchain must be done by everyone, and everyone must have a copy of Global Ledger.

Is Blockchain a good investment?

Is Blockchain a good investment?

You can’t invest directly in blockchain because it’s a kind of technology. If you want to invest, invest in companies that offer these types of services. This can be a good investment.

Apart from that, you can invest in cryptocurrency but it is a little risky but also potentially very profitable.

This is a gold mine for those who want to take higher risks and get higher returns.

How do I buy blockchain stocks? 

Buy cryptocurrencies directly like Bitcoin or Ethereum or buy shares of cryptocurrency trusts like Grayscale Bitcoin Trust (OTC: GBTC).

Buy an exchange-traded fund (ETF) that typically invests in shares of companies linked to the blockchain.

Amplify Transformational Data Sharing ETF (NYSEMKT: BLOK) and Reality Shares Nasdaq NextGen Economy ETF (NASDAQ: BLCN) are two notable examples.

Participate in crowdfunding by purchasing a new cryptocurrency issued by a developer working on a new blockchain project through an initial coin offering (ICO).

How long will the blockchain last? 

How long will the block-chain last? 

We have already given the answer to this question in these questions. But if we think differently, we can’t decide how long the life of any system will be. 

But considering the kind of security that the blockchain system offers, this system will be used primarily everywhere in the future.  

Can blockchain Technology be trusted? 

Can block chain be trusted?

Intermediaries like PayPal or credit cards do these transactions. Blockchain enables a distributed trust-individuals who do not trust each other have a different trust in the system.

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