What is a Blockchain Technology?


“What is Blockchain Technology?”- you may be asking yourself this question for a long time. But, you hadn’t had a chance to read or know about it. In this scenario, you can consider yourself a beginner in this field. Or you may be a tech expert and want to know more about it. No issues. You came to the right platform to learn about Blockchain Technology.

Blockchain Technology

What is Blockchain Technology?

Blockchain technology is a chain or network of recorded public digital transactional data. In brief, these transactional data are stored in a digital ledger. This digital ledger is like Google Spreadsheet, shared throughout various computers and digital networks. Digital Transactional Management becomes highly popular after the introduction of cryptocurrency and bitcoin. Blockchain Training in India can help you in gaining skills and knowledge of this field.

The term is defined as something that people can’t change. So, what is it? Blocks serve as transactional records, which cannot be tampered with without authorization. So, in a way, you can view your records, but can’t change it. This ensures high protection and security.

A Few Basic Points for Better Understanding

Right before, we dig into the main topic, let’s quickly learn a few important terms.

  • Cryptocurrency: This is digital money. A bank doesn’t have to approve the transaction of cryptocurrency. But, you can always use it for purchase or investment.
  • Bitcoin: This is the first decentralized cryptocurrency. Blockchain technology enables peer-to-peer transactions without agents.
  • Mining: Miners create new bitcoins and verify transactions through the process of mining Bitcoin. This also helps to add bitcoin to the blockchain ledger.

How Does Blockchain Technology Work?

As mentioned previously, Blockchains and databases or spreadsheets are alike. However, a slight difference is in the structuring and assessment of the data. Here is a simple framework of how it works:

  • Firstly, the system saves transaction information as a block, resembling a cell in a spreadsheet.
  • Secondly, once your block is full, it generates a hexadecimal number known as a hash. Then, this hash is entered into the following block header. After that, this encryptes with the other information in the block, creating a series of chained blocks.
  • Next, the peer-to-peer computers receive and process the transaction
  • After performing a mathematical algorithm, the transaction is verified.
  • In this way, multiple miners create secured and protected blocks one by one
  • Lastly, these blocks create a long history of transactions, the transaction is complete in Blockchain technology.

However, one should not consider their transaction complete unless five blocks validate it. But, this is not true for blockchains. The Ethereum Network randomly chooses one validator from all users with ether staked to validate blocks. And the network confirms it. This is a faster process than the above-explained one.

Types of Blockchain Technology

To better understand blockchain technology, it’s important to know the different types of blockchains that exist. Generally, blockchains can be categorized into three to seven types, depending on the criteria used. By recognizing the various types of blockchains, you will know how blockchain technology is being utilized across various industries. So, let’s take a look at various types of blockchains in more detail

  • Public blockchain
  • Private blockchain
  • Consortium blockchain
  • Hybrid blockchain

Public Blockchain

In Distributed Ledger Technology (DLT), data is distributed from a peer-to-peer network in a public blockchain. As the name suggests, it is accessible to view and participate by anyone without permission. It gives transparency, trust, and independence. Documentation validation and cryptocurrency are two used cases of public Blockchain. However, this compromises security and performance.

Private Blockchain

This is a private asset of an individual. To access this, one requires permission or authorization access. This is why, it is also called permissioned blockchain. The disadvantages of using this one are performance and scalability. Supply Chain and asset ownership are two used cases in a Private Blockchain. However, for cost-effective causes and flexibility, a private blockchain is highly popular.

Consortium Blockchain

Consortium blockchain is a powerful model that brings together multiple organizations or entities. The main purpose is to jointly operate a blockchain network. It offers the advantages of decentralization and transparency while allowing for access and permissions among participants. This collaborative approach ensures the network’s success, trust, and efficiency. This works in various industries such as supply chain management, finance, and healthcare. Banking, research, and supply chains are some used cases for consortium blockchain.

Hybrid Blockchain

The name itself suggests that this blockchain technology overlaps between two different parts. Hybrid technology is a cross-sectional area of private and public blockchain. Since it addresses the shortcomings of both while keeping the opportunities inherent, this solution stands out as an excellent resource.  It offers the best of both worlds with confidence and clarity. Two used cases of hybrid blockchain are medical cases and real estate. Here, people can access data to some extent but fail to temper any sensitive data. Do you want to know more about BlockChain Courses in India?  Henry Harvin Education allows its learners to help from basic roles. Join today to claim exciting offers!

Step-by-Step Guide for Blockchain Application

As you are interested in blockchain technology, we can provide you with a step-by-step guide. This helps with your blockchain application. Follow the listed process below:

  • Firstly, choose and then create a use case for your application. But, verify if there’s already an existing blockchain.
  • After that, you may choose the correct platform for developing your app.
  • Thirdly please select the consensus algorithm, you want to use.
  • Before you move to the last step, learn Ethereum’s programming and Truffle or remix.
  • Lastly, get an Ethereum account or wallet and buy some Ether (ETH).

ETH is the currency of the Ethereum Network.

Key Components of Blockchain Technology

In blockchain technology, you will find three important components. We will list these three components below:

  • Distributed Ledger: This is a type of database that is distributed among computer networks
  • Consensus Mechanism: It allows all the computer networks to agree on the status of the ledger
  • Smart Contracts: This allows blockchain blockchain to be used in multipurpose

Where to learn about Blockchain Technology?

To be honest, it is not easy to hold a grasp easily on blockchain technology. But, if you start today, soon you will be a Blockchain Expert. Most importantly, Henry Harvin Education allows its learners to help from basic roles. So, if you are looking for a Blockchain Certification Course enroll with us. We promise you to provide the utmost assistance and exciting deals in your learning program.

 Don’t leave a chance out on the opportunity to become a blockchain expert. Enroll today and pave the way for tomorrow’s innovations! Taking a Blockchain course should be your first step into a cool world. A world with lots of cool things and helping to shape how tech will be in the future.


In conclusion, Blockchain Technology represents a way in which we perceive and conduct transactions in the digital age. Its decentralized nature, coupled with cryptographic security, ensures transparency, trust, and immutability of data. Blockchain Technology offers public, private, consortium, or hybrid blockchains to secure transactions.

As we keep going, it’s super important to grab onto the chances that Blockchain offers. Since its power has to change the world view about financial ideas in the future.

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Q.1 What is Bitcoin?

Ans: Bitcoin is a decentralized digital currency. It works with peer-to-peer transactions without the need for intermediaries like banks or governments. The mining process creates Bitcoins. In this process, powerful computers solve complex mathematical problems to validate and record transactions on the blockchain.

Q.2  Can you remove one or more blocks from the Blockchain networks?

Ans: Of course you can. Regardless of the process complexity, filters and default options help to remove blocks from Blockchain networks.

Q.3 List the benefits of Blockchain Technology.

Ans: Undoubtedly, Blockchain Technology has several benefits. Those are:

  • Cost-effective
  • Secondly, secure service
  • Lastly, no intermediate dealer, and fully transparent

Q.4 Difference between Bitcoin and Blockchain

Ans: Undeniably, these two are different. Let’s quickly visit their differences.


It is a Digital currency. It was introduced in 2009 by Satoshi Nakamoto. In this case, transactions are irreversible and transparent.


On the other hand, this is a Distributed ledger technology (DLT). It consists of interconnected blocks of data. Another key point is, that it records transactions securely.

In the final analysis, we can say that Bitcoin is a specific implementation of blockchain technology focused on digital currency.

Q.5 Do you know about Merkle Trees?

Ans: In Blockchain Technology, Merkle Trees are one type of data structure.



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