Bitcoin part 1: Here’s how the cryptocurrency works
The Bitcoin is back.
People world over have been wanting a piece of Bitcoin. Moneycontrol’s special
two-part series explains how it works and why Central Banks are worried about
it
Bitcoin is
becoming popular by the day. It has captured the imagination of many young
investors and millennials. But keeping aside its meteoric rise, what is Bitcoin
really? And why is the Reserve Bank of India worried? Moneycontrol’s two-part
series demystifies Bitcoin, cryptocurrencies and how they work.
From
$121.34 a unit in October 2013 to $32,000 in January 2021, the Bitcoin’s price
has skyrocketed. And no wonder investors of all hues have been intrigued by
the cryptocurrency’s massive rally. What is this
instrument, if it is one at all, and what explains its incredible upward
journey? And should you consider the Bitcoin for your portfolio?
What
is Bitcoin?
Bitcoin is a type of digital currency. But it is unlike other fiat
(legal) currency – the Rupee, US Dollar, Euro and so on. A currency is meant to
buy goods and services. But unlike normal currencies, the Bitcoin is available
only in digital form. It is one of over 4,000 cryptocurrencies available in the
world today.
What
is a cryptocurrency?
A cryptocurrency is a virtual currency. It is a generic name –
Bitcoin is like a brand. Think of cryptocurrency as Cola and Bitcoin as, say,
Pepsi. The Bitcoin is the most popular cryptocurrency in the world today. A
single unit of a cryptocurrency is actually a complex computerized code that
cannot be duplicated.
Why
do I need a Bitcoin in the first place, when there is regular currency?
Our usual currencies are subject to a lot of rules and
regulations. Central banks of various nations govern their currencies. They
control the exchange rates, decide how much money to print and intervene
regularly in forex markets.
In 2008, after the global credit crisis, a need was felt to
democratize how currencies are held, exchanged and regulated. That year, an
anonymous person, under the pseudonym ‘Satoshi Nakamoto,’ invented Bitcoin.
Nobody yet knows who and where Nakamoto is. That was the birth of
cryptocurrencies. Ever since, many other cryptocurrencies were invented, but
Bitcoin remains the most popular.
Cryptocurrencies are more democratic. You can use them in any part
of the world, buy as much as you want and use them anywhere. There is a network
of people and their computers that maintains a ledger. Any exchange of the
cryptocurrency must be validated by all those who are present in the network.
The ledger then gets updated to reflect the transaction. This technology is
called blockchain.
What
is Blockchain?
Blockchain is a technology on which Bitcoin – or any other
cryptocurrency – works. It’s nothing but a sophisticated record-maintaining
system run by several users in a decentralized way.
When a Bitcoin is exchanged, a block of data (an alphanumeric code that signifies the cryptocurrency, its quantum and value) is created and shared across all the computers (or nodes) attached to the network. Think of this block as a series of such transactions. Once this block is verified, a formal record gets entered into the decentralized database for everyone (who is on that network) to see. Then, when that same Bitcoin is sought to be sold again, another block gets created. The previous transaction (or block) is not erased. The new block gets attached to the old block to form a chain (hence the term blockchain) for everyone to see the trail. This way of record keeping also means that the transaction cannot be reversed.
So
can Bitcoin replace our Rupee?
Not so fast. For one, despite being devised as currencies that
should enable you to buy goods and services, cryptocurrencies aren’t yet
considered legal tender. For one, many countries, including India, haven’t
legalized the use of cryptocurrencies.
Why
then has the price of Bitcoin gone up so much?
The speculative potential of what Bitcoin can become once it finds
global government acceptance and become legal tender is a key driver. In April
2018, the RBI virtually banned cryptocurrencies and prohibited all regulated
entities, such as banks, from allowing anyone to trade in them. So, you could
no longer transfer funds from your bank account online to a cryptocurrency
exchange for buying a Bitcoin or any other cryptocurrency.
But in March 2020, the Supreme Court said that such curbs are
illegal. The Supreme Court’s ruling makes many believe that eventually
cryptocurrency would become legal tender.
Higher demand and lower supply lead to higher prices. The current
stage of Bitcoin is one where there is limited supply and a very high demand.
That is why Bitcoin’s price shot up 414 percent between March 2020 and January
2021.
The US, UK and Germany are some countries that allow the use of
cryptocurrencies.
So
what is the danger in making this a legal currency worldwide?
Apart from
decentralization and democracy, the basic idea of cryptocurrency is that there
must be no restrictions or controls. Cryptocurrencies do not maintain your
records. When you exchange any cryptocurrency, all that gets stored in the
decentralized ledger we just told you about, is the fact that the currency was
exchanged. Your identity does not get stored. Buyers and sellers of Bitcoin do
not get to know each other’s identities. Hence, it’s difficult to tax Bitcoin
and that is a loss of revenue to the government. You can buy almost anything on
the dark web without your identity being revealed and that is a real danger in
popularizing cryptocurrencies.
But most importantly, this anonymity in cryptocurrencies can
give rise to terror funding and money laundering. There have been many
ransomware (virus) attacks – websites of large companies have been held
hostage. These cyber criminals demanded cryptocurrencies as ransom so that they
wouldn’t be identified or tracked.
Happy Investing
Source: Moneycontrol.com
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