Table of Contents
If you have been following the news, you must have come across the term – cryptocurrency.
Ever since the price of bitcoin hit $20,000 in 2017, cryptocurrencies have become the talk of the town. You must have come across folks vouching vehemently for virtual currencies (used synonymously with cryptocurrencies).
But what are they exactly? What makes them so different from traditional and legacy financial systems?
Two words make up the word cryptocurrency – ‘crypto’ and ‘currency’. Crypto stands for cryptography. A cryptocurrency uses cryptography to successfully secure, conduct, and validate monetary transactions.
No individual or organization controls the creation and issuance of cryptocurrencies as they exist on distributed, decentralized networks called blockchains. Now you must be thinking, oh wait! Blockchain? Yes.

What is Blockchain?
Blockchains basically consist of information packets called ‘blocks’ that are interconnected in a ‘chain’ type arrangement. Contrary to centralized ledgers maintained by banks or data repositories ‘controlled’ by software and networking behemoths, blockchain is a decentralized ‘peer-to-peer’ digital ledger. For a detailed understanding check out the video below:
Modern cryptocurrencies employ blockchains but early cryptocurrency prototypes were a bit different. Let’s look at what they were like.
History of Cryptocurrencies
Cryptocurrency systems are not entirely new. Research and development on programmable money has been happening since the 1980s and early 1990s. In 1989, American cryptographer, David Chaum attempted a breakthrough with Digicash.
It was a cryptographic electronic money system through which users could withdraw money from a bank and designate specific encrypted keys to that money.
Users could also conduct monetary transactions through Digicash. Unfortunately, the cryptocurrency system didn’t survive for long and the parent company filed for bankruptcy in 1998.
Few more notable names like Wei Dai and cryptography pioneer Nick Szabo also tried introducing cryptocurrencies through “B-Money”, and BitGold but didn’t find much success.
The workable concept of a cryptocurrency finally took tangible shape with the inception of Bitcoin in 2009. Anonymous inventor Satoshi Nakamoto introduced its idea in the whitepaper titled Bitcoin: A Peer-to-Peer Electronic Cash System.
Bitcoin’s peer-to-peer network is very similar to the file-sharing system like BitTorrent. No centralized authority controls the system.
Post bitcoin, many digital currencies have emerged. They follow different blockchain protocols that serve a variety of use cases. Some of them are:
- Proof-of-Work (PoW)
- Proof-of-Stake (PoS)
- Delegated Proof-of-Stake (DPoS)
- Proof-of-Weight (PoW)
Bitcoin, Ethereum, Bitcoin Cash, Litecoin, Monero, Dash, ZCash, Dogecoin, and 500 more cryptocurrencies follow proof-of-work protocols. Therefore, it makes sense to know how they work.
How do Proof-of-Work Cryptocurrencies Work?
As mentioned earlier, cryptocurrencies or digital currencies run on blockchain networks. Satoshi introduced blockchain as a distributed ledger concept that powers Bitcoin.
Blockchain ensures that all cryptocurrencies issued on the decentralized network are accounted for. And how? Senders and receivers are required to sign off on transactions through their own public and private keys.
Apart from this, transactions undergo strict verification. Cryptocurrency miners play a significant role in this regard. They use powerful computers to solve complex mathematical algorithms. This is the key to the entire verification process. The miner who solves the problem first gets to add the transaction to the blockchain.
In the process, the miner earns a set number of cryptocurrencies as a reward for the work done.
Miners sell these cryptocurrencies to cover their operations costs. That’s how these crypto-assets become active contributors in a proof-of-work blockchain-based economy. To understand the mechanism visually check out the video below:
The entire system is transparent right from the start till the end as every miner/ network participant has access to a copy of the blockchain ledger. All transactions are publicly visible which means that forging transactions through ‘double spending‘ is out of the question.
How to Buy Cryptocurrencies and from Where?
Cryptocurrency exchanges can serve as the most appropriate place to buy cryptocurrencies. At WazirX we offer a plethora of digital currency options for you to explore according to your portfolio budget.
In order to get started, you will need to provide your bank account details. It takes a few hours to verify the information shared from your end, after which you are all set.
You can go ahead and directly and buy any cryptocurrency using the funds from your bank account.
Knowing about cryptocurrencies can open doors to a whole new world of opportunities. You can explore options in cryptocurrency investment as well as blockchain development. If you think you want to dig deeper into the blockchain space, we got just the right thing for you here: https://wazirx.com/blog/how-to-learn-blockchain-programming/
We hope this primer will give you a solid headstart in your cryptocurrency journey!
Further Reading:
How to Buy Cryptocurrencies in India?
How to Open a Crypto Trading Account in India?
4 Things to Consider Before Investing in Cryptocurrencies
What are the Business Benefits of Cryptocurrencies?
5 Cryptocurrency Scams and How to Deal With Them
4 Advantages of Blockchain Technology in the Cryptocurrency Domain
How to Select a Cryptocurrency Mining Pool?
What Is Cold Storage For Cryptocurrency?
Impact Of Covid-19 On Cryptocurrencies
What Is Cryptocurrency Market Cap? Why Is It Important?
How to Spot a Cryptocurrency Scam?
Cryptocurrency Benefits for Developing Countries
How To Select A Secure Cryptocurrency Wallet?
How to trade in cryptocurrency in INR?
Indian Cryptocurrency Market – What to expect in 2021?
What is Cryptocurrency Index Funds 2021? What does it mean in the Cryptocurrency Domain?
7 Important uses of Crypto Stablecoins you should know
Frequently Asked Questions
Are Cryptocurrencies Legal In India?
In India, cryptocurrency is legal, and anyone can buy, sell, and trade it. Because India lacks a regulatory system to regulate its operations, it is presently uncontrolled. According to the Ministry of Corporate Affairs, companies must now document their crypto trading/investments inside the financial year.
Is Cryptocurrency Banned In India?
No, cryptocurrency is not banned in India. India has seen its ups and downs in the crypto sector concerning its legal status. The Reserve Bank of India (RBI) issued a circular in April 2018 advising all organizations under its jurisdiction not to trade in virtual currencies or provide services to assist anyone in dealing with or settling them. A government committee proposed outlawing all private cryptocurrencies in mid-2019, with up to ten years in prison and severe penalties for anyone dealing in digital currency. The Supreme Court overruled the RBI's circular in March 2020, allowing banks to undertake cryptocurrency transactions from dealers and exchanges.
What Is Crypto?
Crypto or a cryptocurrency is a digital currency protected by cryptography, making counterfeiting and double-spending nearly impossible. Blockchain technology is used to produce cryptocurrencies (a distributed ledger enforced by a distributed network of computers). Cryptocurrencies are distinct in that a government does not issue them. The word "cryptocurrency" refers to the encryption methods employed to keep digital currencies and the network secure.
Who Invented Cryptocurrency?
Satoshi Nakamoto invented cryptocurrencies and the technology that makes them function in 2009. The presumed pseudonymous individual or persons who invented Bitcoin used this identity. In addition, Nakamoto created the first blockchain database. Even though many people have claimed to be Satoshi Nakamoto, the person's identity remains unknown.
What Is Virtual Currency?
Virtual currency is a type of uncontrolled digital currency that can only be used online. It is exclusively stored and transacted using designated software, mobile or computer applications, or unique digital wallets, and all transactions are conducted through secure, dedicated networks. Because digital currency is just currency issued by a bank in digital form, virtual currency is not the same as a digital currency. Virtual currency, unlike ordinary money, is based on a trust structure and cannot be issued by a central bank or other banking regulatory organization.
How Safe Are Cryptocurrencies?
Cryptocurrencies can be safe, but your crypto wallets can be hacked if proper security steps are not performed. There are also dangers and uncertainties associated with investments, and we cannot declare any virtual currency investment risk-free. Buying and selling cryptocurrencies does not have to be dangerous if the trader is well-versed in the market and treats his coins with care.
How To Invest In Cryptocurrency Stocks?
Cryptocurrency can be purchased in two ways: through mining or exchanges. The process of confirming and adding transactions to the blockchain public ledger is known as cryptocurrency mining. Cryptocurrency exchanges are another option. Exchanges make money by charging transaction fees, but there are alternative platforms where you may communicate directly with other cryptocurrency traders.
Is crypto legal?
Crypto is legal in most countries, including India. While nations like the U.S. and many in Europe have regulatory frameworks, others like China have strict bans.
Is Cryptocurrency Safe To Invest In?
Cryptocurrency investments are subject to market risks, but if sufficient security measures are not taken, trading accounts can be maliciously accessed. Investments come with risks and uncertainties, and we cannot claim that any digital currency investment is risk-free. Buying and selling cryptocurrencies can be risky even if the trader is knowledgeable about the market and treats their coins carefully.
How Cryptocurrency Works?
Cryptocurrencies use cryptography technology to keep transactions and their units (tokens) secure. Cryptocurrency works via a technology called the blockchain. A blockchain is a decentralized technology that handles and records transactions across numerous computers. The security of this technology is part of its value.

Great content you’ve got here. Thanks