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What is Blockchain?

Have you heard about cryptocurrencies like Bitcoin making people rich overnight? What makes these digital currencies so valuable that their prices swing wildly every day? Well, the answer lies in the ingenious technology powering them – blockchain. 

Read on to understand this groundbreaking innovation called blockchain, which will disrupt industries worldwide. 

What is cryptocurrency?

Cryptocurrencies are digital or virtual money that can be used to buy things or exchange value directly with others without needing a bank or other intermediary. The most popular cryptocurrency is Bitcoin, which has become very popular in India due to its rapid increase in value over the past few years.

Initially, the Reserve Bank of India had banned the use of cryptocurrencies, but in 2020, the Supreme Court overturned the ban. Now, India is the second largest country in the world in terms of the number of people who own and use Bitcoin. Many people are interested in Bitcoin because its value can change quickly, which means that it can be a good way to make money. 

The reason behind cryptocurrencies’ radical and widespread popularity is their underlying technology – blockchain. This innovative technology is revolutionising the finance industry.

What is blockchain?

Blockchain is essentially a distributed digital ledger for recording transactions on a peer-to-peer basis across a decentralised network. This eliminates the need for approval from a central agency for any transactions. 

Overview of the blockchain

Imagine a digital ledger that records financial transactions without a bank or intermediary. This ledger is spread out over a computer network that works together to verify and approve every transaction. Each transaction is checked through a secure process before being added to the ledger, which grows as new data blocks are linked together in a chain. 

This creates a timeline of all transactions that users can trace. Since the ledger is decentralised and transactions need approval from multiple computers, no one can alter the records without being noticed. This makes the system secure and trustworthy and eliminates the chance of fraud. 

The best part is that this technology removes intermediaries fees, which means users can save money on transactions. In simple terms, blockchain technology is secure, transparent and decentralised. On the other hand, the Schaff Trend Cycle (STC) is a tool used to identify trend shifts in the financial markets.

Understanding blockchain mechanics 

The blockchain mechanism started with Bitcoin’s launch in 2009 by the mysterious Satoshi Nakamoto. However, developers soon realised that the technology powering Bitcoin could be used for much more than just cryptocurrencies.

Here, we will discuss how blockchain works:

1. Distributed ledger network

Unlike traditional databases with a central administrator, blockchain ledgers are distributed remotely across peer computing systems or “nodes.” Every authorised participant node gets a ledger copy for real-time transaction visibility. 

2. Cryptography and consensus 

When you make a transaction, your funds are verified by a network of computers using advanced security measures. Once your transaction is approved, it’s added to a group of other transactions to create a new record in the ledger of all transactions. This helps keep track of all the money moving around securely and organised.

3. Mathematical puzzles and rewards

Before adding a new block to the blockchain, different computers that hold a copy of the blockchain race to solve a tricky math puzzle. This puzzle is known as a “Proof of Work.” The first to solve it validates the block and adds it to the chain. The miner node is rewarded in cryptocurrency for their efforts.

As you can see, cryptography, proof mechanisms, and incentives allow the network to transparently self-govern with cooperation despite no central control.

Real-World Blockchain Applications

  • Supply chain monitoring

Blockchain ledgers can track the movement of goods through every stage of the supply chain to prevent fraud and improve efficiency. For instance, vehicle telematics data can be recorded via IoT to provide transparent shipment visibility.

  • Medical recordkeeping 

Blockchain offers a decentralised framework for secure medical data storage that gives patients greater control over their health records. Only approved personnel can access sensitive information.

  • Digital identity protection

Your digital identity is the information that makes up your online identity, like your unauthorised address. This information can be kept safe from hackers and thieves by encrypting it and storing it on a special blockchain technology. This way, you get to control who can access your information and prevent others from using it without your permission.

  • E-voting 

Blockchain-based electronic voting systems make elections more secure and transparent. Decentralised recording of votes makes it easier to tamper with results, ensuring fair and accurate vote counting. Blockchain, a type of technology, can revolutionise various industries and bring about significant changes.

The way forward for blockchain in India

Blockchain technology was initially created to ensure the safety of digital currencies, but now it is transforming various industries, such as finance, healthcare, and supply chain management. It enables a secure and efficient method to keep track of transactions and makes it easier for businesses to remain accountable and transparent. 

Although it is still a new technology, there is a lot of potential for its integration in India and other countries as more industries are recognising its benefits:

1. Cost and transaction efficiency – Blockchain technology is a way to make digital transactions more secure and efficient. It removes the need for intermediaries, which can result in faster and cheaper transactions. This could be especially helpful for India’s financial industry, which has been known for needing to be faster and more flexible in the past.

2. Secure recordkeeping – Distributed ledgers are a way to store information that makes it very difficult for anyone to steal or hack. Data tracing makes it easy to track who has accessed the information, making it easier to check for errors or fraud. This can help banks and insurers in India to better deal with the increasing levels of fraud.

3. Financial inclusion – Blockchain is a technology that helps us to keep things transparent and trustworthy. It allows us to create decentralised applications that can be used in various fields. Indian developers are decentralised to build innovative apps to bring about positive changes.

4. Startup innovation – Blockchain is a technology that helps us to keep things transparent and trustworthy. It allows us to create digital applications that can be used in various fields. Indian developers have the potential to build such innovative apps that can bring about positive changes.

Thus, blockchain indicates nothing short of a revolution for decentralisation in India. As the government aims to build a ₹1 lakh crores digital economy by 2025, embracing this foundation technology will prove key to long-term competitiveness and innovation across industries.


The recent repeal of the crypto ban shows that India is interested in supporting the growth of blockchain technology. However, it’s important to have clear rules around things like digital money, investing in technology infrastructure, and tax breaks to ensure we can use blockchain’s potential to its fullest. If we can figure out how to use this new technology properly, it could help India achieve its economic goals in the digital age of decentralisation.


What is the key benefit blockchain offers for financial transactions?

Blockchain allows peer-to-peer financial transactions without needing approval from a central agency like a bank. It acts as a decentralised digital ledger that records all transaction details on a decentralised distributed network, and cryptography mechanisms ensure security and accountability while removing intermediary fees.

How can blockchain technology improve medical record storage? 

Blockchain provides a decentralised framework for secure medical data storage that gives patients greater control over their health records. Sensitive information can only be accessed by approved personnel. As data gets encrypted and stored across distributed servers rather than one central database, the chances of breach significantly reduce.

What does blockchain bring to the electoral voting process?

Blockchain e-voting systems can bring greater transparency to the voting process. These systems use advanced technology to permanently document votes on a decentralised blockchain ledger in real-time. This makes it nearly impossible for anyone to rig the election results, as the records are kept across multiple systems. In short, blockchain e-voting systems help ensure that your vote counts and that the election results are accurate.

How can blockchain help India provide affordable banking to rural communities?

Blockchain and cryptocurrency technologies have made it possible to create banking decentralised functions without traditional intermediaries like banks. This means that people in rural India who don’t have access to traditional banking services can now have access to affordable digital banking. It’s a decentralised system that works by connecting people directly without needing to go through a bank.

Why should the Indian government nurture blockchain growth in the country? 

To boost India’s digital economy, the government can support the growth of blockchain technology. By investing in digital infrastructure, giving tax incentives and creating supportive policies, the government can encourage its use in finance, healthcare, governance, etc. Blockchain solves issues like transparency, security, and trust, so early adoption is important for driving innovation.

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