In early 2009, an anonymous developer (or group) launched the
cryptocurrency known as Bitcoin. This developer went by the name Satoshi
Nakamoto. In the years since, the technology that makes Bitcoin possible has
taken on a life of its own, and numerous other cryptocurrencies have sprung up
to compete with it. To an outside observer, today's cryptocurrency market might
appear to be little more than a group of similar offerings all competing for
the attention of investors.
There's
quite a bit of variance between today's cryptocurrencies. They rely on
different versions of the original blockchain technology that powers Bitcoin,
and not all of them are designed to function like fiat currencies. Making sense
of it all requires careful study and a fairly extensive understanding of how
cryptocurrencies work under the hood.
As
a guide for those not immersed in the intricacies of crypto-technology, here's
a look at the four major types of cryptocurrency, and what they're good
for.
4-
types of cryptocurrency
- Proof of Work (PoW)
- Proof of Stake (PoS)
- Tokens
- Stablecoins
1. Proof of Work (PoW):
To
get started, the first type of cryptocurrency is the one that began with
Bitcoin, which relies on blockchain technology that uses a concept
known as proof of work (PoW) to process transactions. To understand what that
means, though, you first have to understand what blockchain is.
Put
simply, blockchain is a distributed ledger system. On a blockchain network,
every participating computer (called nodes) maintains a complete copy of the
system's ledger. It's a bit like sharing a copy of a check register with
multiple people – except that no individual member can add something to that
register alone.
To
add a transaction, nodes compete to solve a complex cryptographic problem that
represents the data to be added. The first to solve the problem then broadcasts
the answer to the rest of the network for verification. This process is what
has commonly become known as mining because the node that gets the
right answer first gets a reward from the network. It's a secure and
self-policing way of keeping airtight records.
The
security of blockchain technology, besides making cryptocurrencies possible, is
also making its way into other industries of all kinds. Walmart is using it
to manage its produce supply chain, Maersk is using it to track
shipping containers as they travel the globe, and even the diamond
industry has adapted it to track precious stones as they move through the value
chain.
Cryptocurrencies
using PoW:
Right
now, the two major cryptocurrencies that rely on proof of work also happen to
be the biggest, in terms of market value: Bitcoin and Ethereum.
Together, they have a market capitalization of around $150 billion, a
figure that dwarfs all other competition. As the legacy technology of the
cryptocurrency world, PoW has proven stable and resilient, powering the two
aforementioned currencies to unheard-of values in the past few years.
2.
Proof
of Stake (PoS):
The
major problem with PoW systems is the fact that they don't scale well. To
overcome that problem, a different consensus model for blockchain was developed
that allows smaller pools of nodes to validate transactions. It's known as proof
of stake (PoS), and it ensures security in a fundamentally different way than
PoW.
In
a PoS system, not every node must validate every transaction. Instead,
participating nodes have to use their own cryptocurrency holdings as a deposit
to join a transaction validation group. That deposit is where the concept of
proof of stake gets its name. Any node that tries to cheat or pass bad data
into the ledger automatically forfeits their stake as a penalty. Those that
play by the rules receive interest on their deposits as a reward for their
work. In a PoS blockchain, that's the incentive system that keeps things secure
and operating fairly.
Cryptocurrencies using PoS:
Right
now, there are several cryptocurrencies that rely on PoS blockchains. The most
notable among them are Eos, Dash, and Tron. Although they are tiny when
compared to the PoW behemoths, that's about to change in a big way. That's
because as mentioned earlier, Ethereum's about to join their ranks within the
coming year. It's also worth noting that the vast majority of new and planned
cryptocurrencies rely on PoS, as it's seen as the future of scalable blockchain
technology.
3.
Tokens:
The
two cryptocurrency types we've covered so far have been distinguished from one
another by the technology that powers them. That's not the only kind of
difference you'll find in the market, though. There are also differences in the
purposes of the various offerings on the market. That brings us to the next
major cryptocurrency type: tokens.
Tokens
are distinct from traditional cryptocurrencies in that they're not intended to
be used as general-purpose currency. They're also created on top of existing
blockchains, such as Ethereum, and do not exist as stand-alone systems. In a
way, the simplest way to understand the concept is to think about the chips you
use to place bets in a casino. While they represent cash or other assets of
value, they may only be used in the specific casino who issued them.
For
example, online music streaming service Musicoin facilitates direct payment
from listeners to artists using a token called Music. The token itself is built
using the Ethereum blockchain (which is home to the majority of tokens), and
cannot be converted directly into fiat currency. Instead, artists paid in this
way must convert their tokens into standard cryptocurrencies like Bitcoin or
Ethereum before cashing out their earnings.
Major Tokens:
Oddly
enough, there are so many tokens currently in existence that it would be
impractical to list them all. To the general public, however, there are two
worth mentioning – BAT and Tether. BAT, which stands for Basic Attention Token,
is used as a payment system within the recently-released Brave web browser. The
idea is to compensate users for viewing online advertising as a means of
changing the current equation which has led to rampant use of ad blocking
technology.
Tether,
on the other hand, is a token whose sole purpose is to remain at a value
that's on par with the US dollar at all times. It's also a member of the next
group of cryptocurrencies we're about to discuss: stablecoins.
4.
Stablecoins:
As
the name suggests, stablecoins are cryptocurrencies created for the sole
purpose of providing reliable value storage. They came about because standard
cryptocurrencies like Bitcoin and Ether (the Ethereum coin) can fluctuate
wildly in value over a short span, making them difficult to manage. That's the
reason that some crypto-investors have become multi-billionaires overnight,
only to see their net worth evaporate almost as quickly.
Stablecoins
represent something of a hybrid between tokens and standard cryptocurrencies,
in that they are built on existing blockchains but may be exchanged for fiat
currency. Within the market, they play a vital role in allowing day-to-day,
repetitive transactions that are free from value swings. Most stablecoins
achieve this feat by pegging their value to one or more fiat currencies, and
keeping reserves of those currencies as a guarantee of the token's value.
Major Stablecoins:
Besides
Tether, which represents almost 90% of stablecoin trading volume, there are a
few more examples in the market today. The most well-known among them include
Paxos, Gemini, and TrueUSD.
There is, However, another stablecoin on the way that has grabbed the spotlight in recent months. It’s Libra, Facebook-backed cryptocurrency that sparked controversy when plans for its debut became the subject of a congressional hearing this past year. Still, if Libra can clear the regulatory hurdles, it might become the dominant stablecoin almost overnight- changing the face of cryptocurrency market in the process.
If
you want to learn more about the types of Cryptocurrency, feel free to leave
your valuable comments. We are happy to assist you. All the best for your
future.
(All the material in this
article are only the views of the author, and couldn’t be taken as “Financial
Advice”)
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