Blockchain Technology

What is Blockchain Technology, how it works, and how can it be used

Blockchain Technology is one of the prominent forms of technology. However, only a few people understand this concept, even after knowing its value in the upcoming future.

Want to know more about it?

If Yes, then stay with us in this article, where we have covered everything you should know about Blockchain technology. It will explain how it works, how it can be used, and how it is regarded as the future.

What is Blockchain Technology?

Before understanding Blockchain Technology, keep reminding of a ledger where all the transactions are recorded. Whenever we send money from one account to another, all the transactions are recorded in the ledger for everyone to see.

A blockchain is a digital form of the ledger, also known as a digital ledger. Simultaneously, Blockchain technology records all the transactions in a manner so that the participants can’t alter or cheat the system.

Blockchain technology is a revolutionary way of storing and managing data securely and distributedly. It is a digital ledger that stores data in blocks and links them together using cryptography. It allows the storage of a digital asset such as cryptocurrency and validates transactions without needing a third party.

Using cryptography to link blocks together ensures that data stored on the Blockchain cannot be altered or tampered with. This makes it one of the most reliable and transparent forms of data storage.

For example, buying a cryptocurrency initiates on the network and is added to the block with similar transactions. A Block is data that permanently stores transactions in a blockchain.

Then a group of validators verifies all the blocks, called Blockchain mining. Finally, they validate to ensure that no fraud or duplicates can disrupt the process and make things work seamlessly or smoothly.

Features of Blockchain Technology

Here are some of the critical features of Blockchain technology

  • It records via a distributed ledger, which ensures that the transactions are recorded only once. It eliminates the risk of duplication, which we have frequently seen in business processes.
  • The data stored on the Blockchain network is immutable; it will be stored permanently. It cannot be altered or manipulated by anyone.
  • All blockchain transactions are immutable records, which means that the transactions are tamper-proof and can be recorded only once. The entities couldn’t do anything in these instances because the document timestamps could not be tampered with.
  • Different types of information can be stored on Blockchain, but its primary use is as a transaction ledger.
  • In the case of the Bitcoin network, Blockchain technology works decentralized so that no person has control, and all users can retain control.

Blockchain technology is revolutionizing the way businesses operate effectively. It is an advanced-level algorithm that uses distributed ledger technology to store data securely. For example, blockchain technology has streamlined supply chains, created smart contracts, and secured private keys.

Blockchain technology offers a secure and transparent way for companies to share data across different locations while maintaining privacy. It is an ideal solution for supply chains because all stakeholders can access the same information in real-time.

Additionally, Blockchain Technology can come into use to create real-time art contracts and digital agreements between two parties that are automatically enforced by the code of the blockchain network. Finally, users can use blockchain technology’s private key encryption system to protect data from scammers.

How does Blockchain work?

All Blockchain types are operated similarly; the miners are the dedicated individuals who verify the transaction blocks and add them to blockchains. They have to deal with sophisticated software and hardware for the functionality of a blockchain.

The validators can add a new block to the existing block to form a chain. Ince the chain is created, now it is impossible to alter or make any changes to it.

Every new block automatically verifies the previous block’s authenticity automatically, which leads to building a level of trust that is lacking in the conventional finance space. Let us understand the transaction process step-by-step.

  • First, a transaction enters the network.
  • Then the transaction will be entered into the network of peer-to-peer computers worldwide.
  • Then the network of operators will solve the equations to confirm the validity of the transactions.
  • Once it is confirmed that the transaction is legitimate, it will be clustered together into blocks.
  • All these blocks will get chained together and create a history of all the transactions aligned.
  • That’s it; the transaction is completed.

Is Blockchain secure?

Blockchain technology uses decentralized ways to ensure its security in several ways. All the new blocks created are stored linearly and chronologically. Once the block is created, it will be straightforward to alert it if most of the consensus asks.

Every block has its hash, created with mathematical functions, which also turns the digital information into a string of numbers and letters. So if the information is getting changed, the hash code changes as well.

Blockchain is based on cryptography, a highly complex system of encoding messages. Therefore, it becomes difficult for a person to decipher the encrypted message.

Suppose any malicious software tries to change the transaction block by modifying and introducing a new hash. In that case, the validators will compare it with a copy and remove the illegal block created by the software.

How many Blockchains are there?

Let us know about the available Blockchains network-

  • Public Blockchain Networks

Public Blockchain networks are distributed networks that allow users to participate in the network and view, write, and store data on the Blockchain. They are secured using cryptography and consensus algorithms, ensuring that the data stored on the Blockchain is immensely secure and immutable.

Public blockchains use critical public infrastructure (PKI) to authenticate users and transactions. PKI is a system of digital certificates used to identify users securely and encrypt data stored on the Blockchain for the user’s convenience.

Public blockchains also use consensus algorithms such as Proof-of-Work or Proof-of-Stake, which allow for distributed decision-making among all participants in the network. These consensus protocols help ensure that all participants are agreed on what data is being stored and written onto the Blockchain.

Public Blockchains have many potential applications ranging from financial services, healthcare records, supply chain management, land registry records, voting systems, and more.

Private Blockchain Networks

Private Blockchain networks are distributed ledger technology that stores and manages digital currency or other blockchain applications. They are different from public blockchains as they are permissioned and have fewer nodes, meaning only certain people can access the network.

It makes it more secure than public blockchains, as only approved users can access the data stored on the network. In addition, private Blockchain networks offer faster transaction times, as fewer nodes are involved in the process.

It makes them an ideal use case, such as digital payments or intelligent contracts. Even after considering all its functions, Private Blockchain networks have been highly criticized for not being decentralized. However, they have a secured database, which permits a few participants to run nodes.

Permissioned Blockchain Network

A Permissioned Blockchain Network is a mixture of public and private Blockchain networks. These Blockchain networks give several customization opinions, where anyone can join their network after their identities have been successfully verified.

The core objective of a permissioned blockchain network is to give special permissions to every participant. By following the way, they can easily handle specific functions and processes. With such restrictions, Permissioned Blockchain will be open to more people.

What are the prominent Blockchain use cases?

The most common use case of Blockchain is a payment where it enables digital assets to be used in exchange for enhancing value and services like Bitcoin and Ethereum.

Moreover, Blockchain use cases are versatile; Block Array is a blockchain used to track the movement of tangible and intangible assets, aiding the supply chain and logistics industry.

Blockchain use is also beneficial in the health sector to record all the data of patients, which can be easily transferred to health care professionals. In addition, its immutable nature ensures that the patient data is tamper-proof.

Blockchain is revolutionizing the public sector by removing the duplication of efforts in business practices. Furthermore, it adds transparency to the process and builds trust with accountability.

How is Blockchain used for Bitcoin?

As we know, Bitcoin is a virtual currency with the first recognized Blockchain-based asset. It was launched in 2009 and highly relies on Blockchain technology to operate the transactions by two parties.

Once the transaction is sent, the validators will start working to solve the transaction. This process is called Blockchain mining. Here, a Blockchain miner uses sophisticated hardware to validate transactions.

The miners will validate the transactions by competing and creating a new block in the network. The first miner who validates the transaction and adds to the Blockchain will be rewarded with freshly minted Bitcoins.

What is the future of Blockchain?

The future of Blockchain technology is a hot topic in the world today. With Bitcoin and other cryptocurrencies becoming more popular, Blockchain technology has a bright future ahead of it. Blockchain technology will revolutionize how we make business, transfer money, store data, and many more.

The technology is based on a decentralized public ledger system that records all transactions securely. As a result, no one can control or manipulate the data stored on the Blockchain.

Furthermore, it allows for quick and cost-effective transactions compared to traditional banking systems. As such, it could be used for various use cases such as smart contracts, digital identity management, asset tracking, and many more.

Blockchain Decentralization

Decentralization is an important concept under the Blockchain network. But what does it mean? Let’s understand.

For example, the banks store all the customer’s data on a cloud server, a highly centralized server, and a security breach from malicious actors can expose all the customer details.

However, this is not the case with Blockchain protocols; the block is no single point of failure. Instead, computer networks are holding and processing the data and dispersing them across different locations.

It is an attractive option for businesses looking to take advantage of its benefits while avoiding costly mediators or intermediaries.

Pros and Cons of Blockchain Technology


  • No Centralized control
  • Always online
  • Lower transaction fees
  • Quick transaction process
  • Transparent
  • No KYC requirements
  • Enhance privacy
  • Zero account seizures


  • Low transactions per second
  • Transaction storage is limited
  • Scalability issues
  • Data Immutability

Bottom Line

With so many technologies already arriving in the market, Blockchain will become a revolution in the upcoming years. Moreover, it will be a huge name because of Bitcoin and other cryptocurrencies.

Blockchain ensures that business and government operations are concise and accurate by making transactions secure and cheaper without any middleman interference.

Blockchain technology records all the transactions securely, and a single person can never alter or make any changes. So, there is nothing to worry about now; wait and see what changes Blockchain is bringing in the tech field in the future.


Q. Who invented Blockchain?

Ans. Blockchain technology was first;y invented in 1991 by Stuard Haber and W Scoot Stornetta. They are the mathematicians who were looking to implement a system where the document systems couldn’t be tampered with.

In the late 1990s, Cyberphunk Nick Szabo proposed a digital payment system using a Blockchain named Biy Gold, but it was never implemented.

Q. How many Blockchains are there?

Ans. The number of Blockchains is increasing rapidly; as per data from 2022, there were more than 1000 active cryptocurrencies on Blockchain. However, the count of non-cryptocurrency Blockchain is different.

Q. What’s the difference between a Private and Public Blockchain network?

Ans. The Bitcoin Blockchain is an example of a public blockchain. It is an open and distributed ledger that records transactions between two parties in a secure, verifiable, and permanent way. It is also decentralized, which means it does not rely on any single entity to control and manage it.

In contrast, private blockchains are centralized networks typically used by organizations to store confidential data. They are more secure than public blockchains as they require users to be authenticated before they access the data stored on them.

Q. What is Blockchain in simple terms?

Ans. A Blockchain can be said as a digital ledger to store and manage all the transactions securely by creating a block. Immense security is ensured if someone tries to delete or alter an entry in the ledger.

Q. What is the primary purpose of Blockchain?

Ans. The main goal of Blockchain is to allow digital information to be recorded and managed without prior edits. That’s why the Blockchain is also called an immutable ledger, which records all the transactions that couldn’t be altered, destroyed, or deleted.