A virtual or digital currency developed to work as a medium of exchange is called a Cryptocurrency. It uses cryptography to control the creation of new units of a particular cryptocurrency as well as to secure and verify transactions. Essentially, unless specific conditions are fulfilled, cryptocurrencies are limited entries in a database that no one can change.

A cryptocurrency is not controlled by any central authority, and this is its important feature. To the old ways of government control and interference, the decentralize nature of the blockchain makes cryptocurrencies theoretically immune.

Through the use of private and public keys, Cryptocurrencies can be sent directly between two parties. Allowing users to avoid the steep fees charged by traditional financial institutions, these transfers can be done with minimal processing fees.

Cryptocurrencies (Buy Crypto) have become a global phenomenon known to most people today. All that you need to know about cryptocurrencies and the sheer size that they can bring into the global economic system are said In this guide

History & How Cryptocurrency Works??

With systems like Flooz, Beenz and DigiCash emerging on the market but inevitably failing, during the 90s tech boom, there have been many attempts at creating a digital currency. Such as fraud, financial problems and even frictions between companies’ employees and their bosses, there were many different reasons for their failures. 

Meaning that the companies behind them verified and facilitated the transactions, Notably, all of those systems utilized a Trusted Third Party approach. The creation of a digital cash system was seen as a lost cause for a long while, due to the failures of these companies.

Then, in early 2009, under an alias Satoshi Nakamoto, Bitcoin was introduced as an anonymous programmer or a group of programmers.  It was described as a ‘peer-to-peer electronic cash system’ by Satoshi. It is completely decentralized, meaning there is no central controlling authority and no servers involved. For file sharing, the concept closely resembles peer-to-peer networks.

Double-spending is one of the most crucial problems that any payment network has to solve. It is a fraudulent method of spending the same amount twice. The traditional solution was a trusted third party that kept records of the balances and transactions-a central server. However, in control of your funds and with all your personal details on hand, this method always entailed an authority basically.

Every single participant needs to do this job, in a decentralized network like Bitcoin. This is accomplished through the Blockchain – a public ledger of all transactions that ever took place within the network, accessible to everyone. Therefore, every account’s balance can be seen by everyone in the network.

Cryptocurrency technology


Every transaction is a file that consists of the number of coins transferred and the sender’s and recipient’s public keys (wallet addresses). With the sender’s private key, the transaction also needs to be signed off by the sender. All of these are just basic cryptography. Eventually, in the network, the transaction is broadcasted, at first, it needs to be confirmed.

Within a cryptocurrency network, by solving a cryptographic puzzle, only miners can confirm transactions. They spread them across the network after they take transactions and mark them as legitimate. To its database, every node of the network adds it afterwards. It becomes irreversible and unforgettable, Once the transaction is confirmed, the miner receives a reward, plus the transaction fees.

Essentially, any cryptocurrency network is based on the absolute consensus regarding the legitimacy of balances and transactions of all the participants. The system would basically break if nodes of the network disagree on a single balance. However, there are a bunch of rules programmed and pre-built into the network that prohibits this from happening.

The consensus-keeping process is ensured with strong cryptography and thus cryptocurrencies are so-called. This makes third parties and blind trust as a concept completely redundant, along with the aforementioned factors.

What is cryptocurrency mining?

Principally anyone can be a miner. A cryptocurrency needs some kind of mechanism to prevent one ruling party from abusing it since a decentralized network has no authority to delegate this task. Imagine someone spreads forged transactions after creating thousands of peers. Immediately, the system would break.

So, to qualify for this task, Satoshi set the rule that the miners need to invest some work on their computers. So, they need to find a hash – a product of a cryptographic function – that connects the new block with its predecessor. This is called the Proof-of-Work. It is based on the SHA 256 Hash algorithm, in Bitcoin.

There is no need to understand the details about SHA 256. You only need to know that it can be the basis of a cryptologic puzzle the miners compete to unravel. A miner can build a block and add it to the blockchain, after finding a solution. As an incentive, he has the authority to add a so-called coin base transaction that provides him with a specific number of Bitcoins. To create valid Bitcoins, this is the only way.

Only if miners solve a cryptographic puzzle, Bitcoins can only be created. There is only a specific amount of cryptocurrency token that can be created in a given amount of time since the difficulty of this puzzle increases the amount of computer power the whole miner’s invest. This is part of the consensus that cannot be broken by any peer in the network.

How Secure Is Cryptocurrency?

Cryptocurrencies are usually built using blockchain technology. Blockchain defines how transactions are documented into “blocks” and time-stamped. The result is a digital ledger of cryptocurrency transactions that’s hard for hackers to tamper with even though it’s a fairly complex, technical process. 

A two-factor authentication process is required for transactions in addition. For instance, to start a transaction, you will be asked to enter a username and password. Then, you will have to enter an authentication code that’s sent to your personal cell phone via text. 

And that doesn’t mean cryptocurrencies are unhackable, while securities are in place. In fact, numerous high-dollar hacks have cost cryptocurrency startups heavily. Hackers hit Coincheck to the tune of $534 million and BitGrail for $195 million in 2018. That made them two of the biggest cryptocurrency hacks of 2018, according to Investopedia.

What can you do with cryptocurrency?

  • Buy goods

Finding a merchant that accepts cryptocurrency was extremely difficult in the past. However, the situation is completely different these days.

Both online and offline, there are a lot of merchants that accept Bitcoin as the form of payment. From massive online retailers like Overstock and Newegg to small local shops, bars and restaurants, they range. For hotels, flights, jewellery, apps, computer parts and even a college degree, bitcoins can be used to pay.

Other digital currencies like Ripple, Litecoin,  Ethereum and so on are not accepted as widely just yet. With Apple having authorized at least 10 different cryptocurrencies as a viable form of payment on the App Store, things are changing for the better though.

Users of cryptocurrencies other than Bitcoin can always exchange the coins they own for BTCs, of course. Moreover, like Gift Off, there are Gift Card selling websites which accept around 20 different cryptocurrencies. You can essentially buy anything with a cryptocurrency, through gift cards.

  • Invest

Many people assume that cryptocurrencies are the hottest investment opportunity available now. Indeed, through their Bitcoin investments, there are many stories of people becoming millionaires. Just last year one BTC was valued at $800 and Bitcoin is the most recognizable digital currency to date. The price of one Bitcoin exceeded $7,000, in November 2017.

The second most valued cryptocurrency, Ethereum, has recorded the fastest rise a digital currency ever demonstrated. Its value increased by at least 2,700 per cent, since May 2016. Their market cap soared by more than 10,000 per cent since mid-2013 when it comes to all cryptocurrencies combined.

However, it should be noted that cryptocurrencies are high-risk investments. Their market value fluctuates more than any other asset. Moreover, there is always a risk of them getting outlawed in certain jurisdictions and any cryptocurrency exchange can potentially get hacked as it is partly unregulated.

Bitcoin is obviously still the dominant one if you decide to invest in cryptocurrencies. However, its share in the crypto-market has fallen from 90 per cent to just 40 per cent quite dramatically in 2017. With some coins being privacy-focused, others being less open and decentralized than Bitcoin and some just outright copying it, there are many options currently available.

There are numerous exchanges in existence that trade in BTC while it’s very easy to buy Bitcoins- other cryptocurrencies aren’t as easy to acquire. Although, with major exchanges like Kraken, BitFinex, BitStamp and many others starting to sell Litecoin, Ethereum, Monero, Ripple and so on, this situation is slowly improving. There are also a few other different ways of coining, for instance, you can trade face-to-face with a seller or use a Bitcoin ATM.

You need a way to store it, once you buy your cryptocurrency. Wallet services are offered by all major exchanges. It’s best if you store your assets in an offline wallet on your hard drive, or even invest in a hardware wallet, but, while it might seem convenient. It gives you full control over your assets and this is the most secure way of storing your coins.

You need to pay close attention to the cryptocurrencies’ market value and to any news related to them, as with any other investment. For tracking the price, volume, circulation supply and a market cap of most existing cryptocurrencies, Coinmarketcap is a one-stop solution.

Cryptocurrency technology


You might need to include it in your tax report, depending on a jurisdiction you live in, once you’ve made a profit or a loss investing in cryptocurrencies. From country to country, cryptocurrencies are treated very differently In terms of taxation. In the US, the Internal Revenue Service enacted that Bitcoins and other digital currencies are to be taxed not as currency, but as property. This implies that accrued long-term gains and losses from cryptocurrency trading are taxed at each investor’s applicable capital gains rate for investors, which stands at a maximum of 15 per cent.

  • Mine

Much like trading, mining is an investment and Miners are the single most important part of any cryptocurrency network. Essentially, for their respective communities, miners are providing a bookkeeping service. To solve complicated cryptographic puzzles, which is necessary to confirm a transaction and record it in a distributed public ledger called the Blockchain, they contribute their computing power.

The difficulty of the puzzles is constantly increasing, correlating with the number of people trying to solve it and this is one of the interesting things about mining. So, the more popular a particular cryptocurrency becomes, the more people attempt to mine it, the harder the process becomes.

By mining Bitcoins, a lot of people have made fortunes. Back in the days, from mining using just your computer, or even a powerful enough laptop, you could make substantial profits. These days, only if you’re willing to invest in industrial-grade mining hardware, Bitcoin mining can become profitable. On top of the price of all the necessary equipment, This, of course, incurs huge electricity bills.

In terms of being cost-effective for beginners, Currently, Litecoins, Dogecoins and Feathercoins are said to be the best cryptocurrencies. For instance, you might earn anything from 50 cents to 10 dollars a day using only consumer-grade hardware, at the current value of Litecoins.

How do miners earn profits? The more chances they have of solving the cryptographic puzzles, the more computing power they manage to accumulate. They receive a reward as well as a transaction fee, once a miner manages to solve the puzzle.

Mining becomes harder and the number of coins received as a reward decreases, as a cryptocurrency attracts more interest. For example, the reward for successful mining was 50 BTC when Bitcoin was first created. Now, the reward is 12.5 Bitcoins. This occurred because the Bitcoin network is formulated so that there can only be a total of 21 mln coins in circulation.

Almost 17 mln Bitcoins have been mined and distributed as of November 2017. However, every single Bitcoin mined will become exponentially more and more valuable, as rewards are going to become smaller and smaller.

All factors that create mining cryptocurrencies a very competitive arms race that rewards early adopters. However, profits made from mining can be subject to taxation and Money Transmitting regulations, depending on where you live. The FinCEN has issued guidance, In the US, according to which mining of cryptocurrencies and exchanging them for flat currencies may be considered money transmitting. This means that miners might need to adjust with special laws and regulations dealing with this kind of activity.

  • Accept as payment (for business)

Accepting cryptocurrencies as a form of payment may be a solution for you, if you happen to own a business and if you’re looking for potential new customers. The interest in cryptocurrencies is only going to increase and it has never been higher. The number of crypto-ATMs located around the world also grows along with the growing interest. Currently, almost 1,800 ATMs in 58 countries are listed by Coin ATM Radar.

First, you need to let your customers know that your business accepts crypto coins and the trick can be done by simply putting a sign by your cash register. Using hardware terminals, touch screen apps or simple wallet addresses through QR codes, the payments can then be accepted.

To accept payments in cryptocurrencies, there are many different services that you can use to be able. For example, charging just 0.5 per cent commission per transaction, CoinPayments currently accepts over 75 different digital currencies. Other famous services include Cryptonator, CoinGate and BitPay, with the latter only accepting Bitcoins.

Bitcoin and other cryptocurrencies have been recognized as a convertible virtual currency in the US, which means accepting them as a form of payment is exactly the same as accepting cash, gold or gift cards.

US-based businesses accepting cryptocurrencies need to record a reference of sales for tax purposes, that is, the amount received in a particular currency and the date of transaction. The amount due is calculated based on the average exchange rate at the time of sale if sales taxes are payable.

  • Is it good to Invest in Cryptocurrency?

Many investors do not see them as real investments, but as mere speculations even if  Cryptocurrencies may go up in value. The reason? Cryptocurrencies generate no cash flow, just like real currencies, so for you to profit, someone has to pay more for the currency than you did.

This is called “the greater fool” theory of investment. Contrast that to a well-managed business, by growing the profitability and cash flow of the operation, which increases its value over time.

As NerdWallet writers have reported, cryptocurrencies such as Bitcoin may not be that safe, and some notable voices in the investment community have notified would-be investors to steer clear of them. Of particular note, legendary investor Warren Buffett compared bitcoin to paper checks: “It’s a very effective way of transmitting money and you can do it anonymously and all that. A check is a way of transmitting money too. Are checks worth a whole lot of money? Just because they can transmit money?”

It should be noted that a currency needs stability so that merchants and consumers can determine what a fair price is for goods, for those who see cryptocurrencies such as Bitcoin as the currency of the future. Through much of their history, Bitcoin and other cryptocurrencies have been anything but stable. For example, in December 2017, while Bitcoin traded at close to $20,000 and a year later, its value then dropped to as low as about $3,200. It was trading at record levels again by  December 2020.

A conundrum is created by this price volatility. People are less likely to spend and circulate them today, making them less viable as a currency, if bitcoins might be worth a lot more in the future. 

Cryptocurrency security tips

Tips For Investing In CryptoCurrency 

  • Research Exchanges

Learn about cryptocurrency exchanges before you invest one dollar. According to Bitcoin.com, there are 500 exchanges to choose from, even though these platforms provide the means to buy and sell digital currencies. Before moving forward, Do your research, read reviews and talk with more experienced investors.

  • Know-How to Store Your Digital Currency

You have to store cryptocurrency, If you buy it.  On an exchange or in a digital “wallet”, you can store it. For example one of the crypto wallets described in our Blog post Which cryptocurrency wallet to choose. Each wallet has its own benefits, technical requirements and security, While there are many different kinds of wallets available. As with exchanges, before investing, you should investigate your storage choices.

  • Diversify Your Investments

To any good investment strategy, Diversification is a key, and it holds true when you’re investing in cryptocurrency too. Don’t invest all of your money in Bitcoin, for example, just because that’s the name you know. There are a lot of options, and the best option is to spread your investment around to several currencies.

  • Prepare for Volatility

Be prepared for ups and downs as the cryptocurrency market is a volatile one. You’ll catch sight of dramatic swings in prices. Cryptocurrency might not be a wise choice for you if your investment portfolio or mental wellbeing can’t handle that.

Legality of cryptocurrencies

Law enforcement agencies, tax authorities and legal regulators worldwide are trying to comprehend the very concept of crypto coins and where exactly do they fit in existing regulations and legal frameworks, as cryptocurrencies are becoming more and more mainstream.

With the introduction of the first-ever cryptocurrency Bitcoin, a completely new paradigm was created. Decentralize, self-sustained digital currencies were always set to cause an uproar among the regulators, they don’t exist in any physical shape or form and are not controlled by any singular entity.

Regarding cryptocurrencies’ decentralized nature and their ability to be used almost completely anonymously, a lot of concerns have been raised. The governments all over the world are anxious about the cryptocurrencies’ appeal to the traders of illegal goods and services. Moreover, about their use in money laundering and tax evasion schemes, they are anxious.

As of November 2017, only in Bangladesh, Bolivia, Ecuador, Kyrgyzstan and Vietnam, with China and Russia being on the verge of banning them as well, Bitcoin and other digital currencies are outlawed. However, as of now, other jurisdictions do not make the usage of cryptocurrencies illegal, but the laws and regulations can fluctuate dramatically depending on the country.