Learning the friendly way

One of the largest and oldest dapps in the DeFi (decentralized finance) space, Compound Finance has built a reliable reputation among traders looking for lending and borrowing services. Compound operates using its native ERC-20 COMP tokens which provide community governance as well as other services.

What is the Compound protocol (COMP)?

Built on the Ethereum blockchain, the Compound protocol provides liquid money markets offering services such as lending and borrowing. Supporting a number of crypto assets, the Compound protocol allows users to deposit crypto into lending pools providing capital for borrowers on the network and allowing them to earn interest in return.

After depositing funds into the lending pool, lenders are issued "cTokens" (cETH, cDAI, cBAT) which represent the deposit made. These tokens can then be traded or transferred within the platform, or redeemed for the original cryptocurrency deposited. This process is conducted by smart contracts and operates entirely automatically with interest rates algorithmically assigned based on the activity in its liquidity pools. 

The Compound protocol also uses the ERC-20 native COMP token which is distributed to traders that utilize the Compound market, i.e. borrowing, withdrawing or repaying the asset. COMP tokens are distributed each time an Ethereum block is mined proportional to the interest collected from each asset. The COMP cryptocurrency grants COMP token holders governance and voting rights.

Following notable investments from the likes of consulting firm Bain Capital Ventures, Andreessen Horowitz, and Polychain, the platform has grown and established a strong reputation within the decentralized finance space and the greater crypto world.

The history of Compound and who created it

Compound was founded in 2017 by Robert Leshner and Geoffrey Hayes, who both previously held high-profile jobs at PostMates, an online food delivery service. Leshner holds the CEO position while Hayes remains the CTO at Compound Labs, Inc, the software development firm behind the Compound protocol. Compound Labs is an open-source software development firm creating cutting-edge tools, products, and services for the innovative DeFi ecosystem.

In 2018, the platform raised $8.2 million from notable venture capital firms Bain Capital Ventures and Andreessen Horowitz. A year later, Compound raised an additional $25 million from many of the same investors along with new ones including Paradigm Capital.

How does Compound work?

The Compound protocol leverages the power of Ethereum smart contracts and cryptocurrency incentives to benefit lenders and borrowers. Lend and borrow services make up the two main use cases for the platform, as outlined below.

Interest rates on Compound are dynamically managed based on the supply and demand of particular crypto assets within the coin pools. The higher the liquidity, the lower the interest rate. Prices are determined by using the Open Price Feed based on Chainlink's oracles which collect the data from numerous exchanges.

In order to use the Compound DeFi protocol to engage in lending or borrowing services, you will need to connect one of the supported crypto wallets. Currently, the app supports MetaMask, Ledger, WalletConnect, and Tally Ho. The interface has been designed to be user-friendly and easy to navigate, perfect for traders new to the space as well as seasoned DeFi participants.

Lending/supplying

The process of lending on the Compound platform is called supplying. Lenders are able to earn interest on their cryptocurrency by depositing cryptocurrencies into the Compound platform. Borrowers are also required to deposit digital assets into the protocol, which can earn interest but cannot be withdrawn for the duration of the borrowing period.

The platform currently supports roughly 20 crypto assets, from Basic Attention Token (BAT) to Wrapped Bitcoin (WBTC), with Ethereum (ETH) and a number of stablecoins (DAI, USDC, and USDT) being the most actively used.

Once users lend assets to the platform, they are issued with ERC-20-based cTokens corresponding to the cryptocurrency deposited (i.e. cETH, cDAI, etc.). These tokens confirm the liquidity providers' deposits and offer a number of other incentives.

Borrowing

After depositing a particular cryptocurrency into the decentralized finance protocol, users are assigned a "borrowing capacity". This is a limit set in USD based on the rate of the crypto asset which is determined by the Open Price Feed. When depositing multiple cryptocurrencies, the borrowing capacity will factor this in.

Users can also borrow cryptocurrencies supported by the protocol based on a coin's collateral ratio. For instance, if DAI has a collateral ratio of 70%, users can borrow DAI up to 70% of the total amount deposited. Typically, collateral ratios are between 60% and 85%.

Similar to the lending process, when borrowing cryptocurrency borrowers are issued cTokens. So when borrowing DAI for instance, borrowers will be issued cDAI tokens, with the interest payable based on these tokens as well.

Withdrawing

After paying back the borrowed debt, users can redeem their deposited funds. Without having to deal with other traders, the protocol seamlessly utilizes a dynamically maintained set of liquidity pools. The platform also does not charge any withdrawal penalties or hold users to minimum investment times.

When users redeem their funds, the cTokens issued are added to the accumulated interest and converted back to the originally deposited cryptocurrency. These funds can then be withdrawn into the connected wallet.

Account Health

The Compound platform uses a system called "account health" to establish whether accounts are in risk of liquidation. This system measures the sum of the deposited funds against the total amount borrowed. If a user's account health falls dangerously low, the account could be liquidated, and some of the collateral forfeited.

This process is managed in a decentralized way where platform users act as liquidators and monitor for risky accounts. Should they liquidate an account they earn a portion of the liquidated funds.

What is the COMP token?

The COMP token is the Compound platform's native token which mainly serves as a governance token, with a built-in incentive for users holding the token. Holders of COMP tokens are able to vote on all important decisions pertaining to the protocol, including interest rates. Much like the cTokens, COMP tokens are based on Ethereum’s ERC-20 token standard. 

Compound tokens have a total supply of 10,000,000 tokens, of which over 70% of Compound coins are in circulation (at the time of writing).

How can I buy COMP tokens?

With Tap's mobile app, users can easily acquire COMP tokens and store them in the integrated wallet with confidence, either to hold long-term, sell, trade or use on other DeFi platforms. Not only does Tap provide an effortless way of trading digital assets, but also a safe space to keep your investments secure over long periods of time.

In order to access the mobile app users will need to download the app and create an account. After a quick verification process, users have access to a wide range of vetted cryptocurrencies as well as fiat wallets where funds can be safely stored or used in the real world. Whether you're looking to buy Compound or sell Compound coins, Tap provides a seamless solution to your crypto needs.

While you’ve likely come across the world of cryptocurrencies, you most probably have stumbled upon the term “blockchain”. But what is the blockchain solution? Blockchain is not only the revolutionary technology behind cryptocurrencies, it also has a large use case outside of the cryptocurrency and even the finance sector.

In the decade since blockchain technologies and digital ledger technology came to light, a host of blockchain networks have been created, most with their own digital currency. As the industry has grown and new blockchain networks have emerged, innovation in the space has increased significantly.

From the Ethereum blockchain providing a platform on which developers can create digital assets and smart contracts to corporate organizations implementing a private blockchain in order to streamline their services, the technology is propelling mankind forward in ways not witnessed in decades.

The blockchain solution provides much more than just digital assets, and industries far beyond just the payment processing ones are catching on. With traditional business networks incorporating the technology, the world of permissioned blockchain is igniting.

What is Blockchain?

Blockchain is a decentralized, transparent, immutable technology that keeps a public record of all information entered. Designed to record and distribute information, not to be edited. Also referred to as a public ledger, a blockchain keeps a record of all information ever inputted and stores it chronologically in blocks.

These blocks are linked to each other through a hashing system, which ensures that no one can ever tamper with the previous records, or try to manipulate the information on them. The “chain” of blocks make up the blockchain database.

The decentralized technology is not typically run by one entity, but rather from a variety of computers (also known as nodes) that make up the network, and work together to validate transactions and all information added to the blocks. Blockchain can be used in two forms, as a public blockchain or as private blockchain networks.

The public version allows anyone to view all information on the network, while the private reserves the information for members granted access.

The Advantages of Blockchain Technology

Powerful Technology

Invented in 2008 alongside Bitcoin by an anonymous entity Satoshi Nakamoto, blockchain is the technology that fueled the new way that money is transacted. Not only that, the technology offers incredible use cases far beyond the financial world. 

Fully Trusted, Fully Automated

One of the key features of blockchain is its ability to function without a central authority. The technology is designed to be maintained by various operating systems on the network, with full autonomy dispersed evenly. Information is stored on the blockchain in such a way that everyone can view it but no one can go back and tamper with it.

Powering Industries

While blockchain is the technology behind crypto, it also offers an incredible backbone to a diverse range of industries outside of this space. Companies like Nestle, Microsoft and Walmart are onboarding blockchain, proving to offer a strong and highly adaptable infrastructure to financial, property, and supply chain management entities. The number of blockchain companies is growing by the day.

The Core Benefits of a Blockchain Network

Decentralized

Blockchain networks are designed to be entirely decentralized meaning that there is no one central authority. The entire network is maintained by nodes (computers) around the world and no single entity has control. 

Immutable

Once the information has been added to a blockchain, no one can tamper, edit, or remove it. As information is verified and added to blocks, this solidifies its presence on the blockchain forever. 

Transparent

Blockchain offers a transparent view of all the activity that takes place on the network. This takes away the need for any checks or balances as all the information is available at any given time, in real-time.

What is the Difference Between a Public Blockchain and Private Blockchain?

When understanding what is blockchain, a common question is whether blockchain is secure. The answer is yes, blockchain is very secure.

Due to its decentralized nature, the technology requires a network of operators (computers) to verify and input all the information. As soon as one tries to input incorrect information or conduct illicit transactions, the network will recognize this and reject it immediately. 

The difference between a public and private blockchain is that public blockchain networks are open for anyone to see, while private blockchains are closed to an organization or a selected group of people.

Cryptocurrency networks are examples of public blockchain networks in that anyone can view all the transaction data. For a private blockchain, however, users will need special permission to access this information.

How is Blockchain Tamperproof?

Each block is made up of three things: the hash code of the previous block, the relevant information, and its own hash code.

When a new block is added, the new block will again have the hash of the previous block, the relevant information, and its own hash. This special sequence of hashes ensures that all blocks are stored chronologically, in a linear fashion, meaning that you cannot tamper with one block's information without tampering with every block after that.

Tampering with blocks would take an enormous amount of computing power and is largely considered impossible. Hence the security of using a digital asset or digital currency.

Blockchain Explained: How Does It Work

At its core, blockchain records and distributes information to a wide network of users that participate in verifying the information and maintaining the network. Let’s take a deeper look at Bitcoin transactions to further explain how blockchain works. 

If one user wanted to send a portion of Bitcoin to another user, they would require the user’s wallet address. Each wallet is made up of two codes, a public and private key, which enable the user to receive BTC (through the public key), as well as access BTC and conduct transactions (through the private key). The sender will then input the receiver’s wallet code and send the amount of Bitcoin they desire. 

This transaction will then enter a pool of transactions waiting to be verified by a miner on the network. The miner will ensure that the sender owns the amount they are sending, and verify the transaction along with a number of other transactions.

On the Bitcoin network, the size of one block is 1MB, which equates to roughly 3,200 transactions able to be stored in one block. When building a blockchain network, the size of the blocks can be increased or decreased to suit the use case. 

Once the transaction has been verified, the miner will record transactions processed and ensure they are added to the chain. The transaction ledger will then be distributed to the rest of the operators on the network. This new version will then override the older versions, and so on as more blocks are added.

Once the block is added to the blockchain and distributed, the funds will reflect in the receiver’s wallet. No need for a bank account or legal contracts, Bitcoin (and other digital currencies) operate entirely separately from traditional banking institutions and allow for the fast, efficient and cost-effective transaction of value.

Fraudulent transactions cannot take place as this will be flagged long before the block is added to the chain. Blockchain work in such a way that network participants can immediately flag ill actors and dismiss fraudulent financial transactions.

Understanding the Difference Between Blockchain and The Bitcoin Blockchain

The burning question: how does blockchain compare to Bitcoin. The answer is that it doesn’t, there are two separate, co-dependent technologies. Bitcoin, the cryptocurrency, is built on blockchain technology and requires it to function. There is no Bitcoin without blockchain technology.

Consider it the backbone of all cryptocurrencies. Blockchain technology, however, is an adaptable technology that can be used outside of the cryptocurrency industry. The technology can be used in any industry, provided that they require a transparent, immutable public ledger. 

One thing the two do have in common is that they were both introduced to the world at the same time. While the concept of blockchain technology was initially invented by researchers W. Scott Stornetta and Stuart Haber in 1991, it was referred to as distributed ledger technology (DLT) and was created purely to store office documents.

The anonymous entity Satoshi Nakamoto built on this and ultimately solved the double spending problem it was plagued with. In 2008, Nakamoto released both blockchain technology and Bitcoin in a whitepaper titled Bitcoin: A Peer-to-Peer Electronic Cash System.

The Bitcoin blockchain refers to the network, while blockchain technology refers to the technology as a whole.

In Conclusion

What is blockchain? Blockchain technology is the transparent, immutable storage of information. As mentioned earlier, this technology has use cases far outside of just the cryptocurrency and financial ecosystems.

Industries like renewable energy, supply chain management, and even farming sectors are now incorporating blockchain technology into their business systems, empowering them with a fully automated and safe means of storing records. 

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Axie Infinity is a blockchain-based trading and battling game that allows users to breed, raise, battle and trade Axie creatures. Inspired by the likes of Pokémon and Tamagotchi, Axie Infinity incorporates blockchain technology and the highly popular NFTs (non-fungible token) into their new-age video game.

In a new wave of supported cryptocurrencies on the Tap exchange, the digital currency AXS was incorporated due to its high trading volume, impressive project, growing community and much-loved user experience. Through combining advanced tech with video game functionality, the Axie Infinity platform has proven to be at the cutting edge of the gaming revolution, for players and investors alike. Discover more about this decentralized asset in the article below.

What Is Axie Infinity (AXS)?

Built on the Ethereum blockchain platform, Axie Infinity is a video game that uses NFTs to represent unique creatures, abilities, land plots and other in-game assets. Through the game, users can earn Axie Infinity Shards (AXS) and Smooth Love Potions (SLP, formerly Small Love Potions).

Proving to be one of the most successful blockchain-based games in the industry, Axie Infinity has built a wide following indicated by its impressive USD market capitalization, price gains and on-chain trading volume.

Each Axie is created unique, with varying attributes that players can choose from. With over 500 body parts available across creature categories like beast, bird, plant, bug, aquatic and reptile, these also fall into rarity scales including common, rare, ultra-rare and legendary. With such a range of options, Axies have become rare commodities within the game and are based on ERC token standards. 

Who Created Axie Infinity?

Axie Infinity was officially founded in 2018 by Trung Nguyen, an accomplished entrepreneur, engineer and CEO of Sky Mavis alongside Aleksander Larsen, an accomplished business developer and COO of Sky Mavis. Sky Mavis is a technology-focused gaming studio based in Vietnam. Another notable name contributing to the development and success of the decentralized gaming tech is Viet Anh Ho, CTO of Sky Mavis and accomplished engineer. 

The company has attracted the attention of notable investors, including Blocktower Capital and Mark Cuban, and has gone through several successful rounds of funding. In the project's final round of funding on the Binance exchange Launchpad, it managed to raise an impressive $2.97 million. 

How Does Axie Infinity Work?

In Axie Infinity players battle their Axies, each based on an ERC-721 non-fungible token (a unique form of digital currency that centres around ownership). Monitoring stats across Health, Morale, Skill, and Speed categories, the Axies play against one another in order to determine the stronger of the lot. 

Axies come in various classes, notably the Aquatic, Beast, Bird, Bug, Plant, or Reptile class or one of the secret classes, Dawn, Dusk, or Mech. Each Axie also has six body parts: back, ears, eyes, horns, mouth, and tail, each category coming with a range of options. 

These unique creatures can then earn SLP for participating in the PVP Arena, Adventure Mode, or quests, and can be bred to create even more unique creatures. The maximum amount of times one Axie can be bred is 7, costing the breeders 4 AXS plus SLP (which varies from 150 SLP for the first round of breeding, reaching 3,150 SLP on the seventh and final round allowed). 

These characteristics and classes all play a role in determining how it will fair in gameplay. At its core, Axie Infinity is a video game based on battles and breeding, however, there is another valuable component to the game: land. Players can purchase and trade homes for Axies, called Lunacias, which are essentially plots of land in the Axie Infinity world. 

There is also the Axie Infinity Marketplace where players can buy and sell Axies.

What are Axie Infinity Shards (AXS)?

AXS are non-fungible tokens based on the ERC-721 Ethereum-based token standard. While used in the game for payments, these tokens also serve as governance tokens, allowing holders to have a say in the development of the project. These digital currencies can also be traded on external exchanges.

On the other hand, SLP is the in-game token used to breed Axies. With increased growth in the community, these tokens have gained investor interest outside of the gaming community.

Can I Earn From Playing Axie Infinity?

The Axie Infinity game is at the forefront of the latest play-to-earn video game economy. Through the game, players are able to earn money through three avenues: selling SLP (smooth love potions), breeding rare Axies, and AXS staking.

Selling SLP

Players can earn SLP in the game by fighting other players in Arena Mode, battling monsters in Adventure Mode and completing a variety of daily missions and quests. These NFTs can then be sold on outside marketplaces.

Breeding Rare Axies

As mentioned earlier, the breeding process can be lucrative as more rare combinations are created. Axies can then be sold in the Axie Infinity Marketplace, usually fetching around $200. In late 2020 an Axie by the name of Angle sold for $120,000.

AXS staking

Coming soon, users will be able to stake AXS in interest-bearing smart contracts.

Investing has become an increasingly important part of many people's financial plans, as it offers the potential for greater returns than simply leaving money in a savings account. By investing your hard-earned money, you can potentially build wealth over time and secure a better future for yourself and your family.

But what exactly is investing? Put simply, investing involves putting your money into assets with the goal of making more money. There are various types of investments available to individuals, from stocks and bonds to mutual funds and real estate investments. Understanding how each type works is key to making smart investment decisions that will help you meet your financial goals.

Investing can also involve investing in time and labor, especially when it comes to business operations. These investments are similar in that one expects to see returns. While no investment carries a guarantee, understanding what they are and how they operate will assist you in making smart financial decisions. 

What is an investment?

When you invest, you're essentially trading current resources (like time or money) for an asset that has the potential to grow in value. Ideally, if you choose to invest in the right asset at the right time, your investment could gain value. As an example, when you trade on the stock market, you are buying stock with capital in the hope that in time the asset will grow in value and sell for more money than the initial capital investment. 

There are plenty of different types of investments one could use to grow their money, from stocks and bonds to commodities and cryptocurrencies, as well as mutual funds and real estate properties. The concept behind every investment is that it will make more money for the investor in the long term.

A smart investment allows an individual to not only make money but increase their total net worth. However, it's crucial to remember that every type of investment is speculative and there is always a possibility you will lose some or all the money you put in. For example, if you purchase stock shares or a piece of property, the value could decrease soon after you buy it. For this reason it is imperative that one assesses their risk tolerance before investing in something so as not to lose money.

The definition of an investment is not constant and can change depending on the situation. For instance, in macroeconomics, investing refers to purchasing items now that will be used later to generate income. While a company or individual from one nation might invest in business properties located in another country, such as building a factory which is known as foreign direct investments.

What are the different types of investments?

With a variety of options available, each investment type carries its own potential for returns, risks, and other factors such as tax implications and management fees. Below we highlight several options available to the everyday trader that can be used individually or together as part of an investment strategy to contribute to their financial goals.

Stock Market

By investing in stocks on the stock market, you are purchasing fractional ownership of a public listed company. People generally invest in stocks with the aspiration that their value will have gone up by the time they sell them. In order to make a profit from selling stock, the price will need to have grown enough to cover any trading costs and transaction fees associated with the trade. 

Investing in certain stocks might also make you liable to dividend payouts, where a company distributes profits to shareholders (holders of stock) based on the company's performance. 

Read more about investing in stocks in our What Are Stocks article. 

Mutual funds

Mutual funds are investment vehicles that pool the money of many investors and invest in a variety of different assets such as stocks, bonds, and other securities. A mutual fund is managed by an investment professional who makes all the decisions about where to put the money within the fund.

These professionals seek to maximize returns for investors while maintaining a certain level of risk. Mutual funds are a great way for investors to diversify their portfolios, as the fund’s holdings may include stocks from many different companies and sectors. Additionally, mutual funds reduce the amount of research required to make an informed investment decision since all decisions are made by the fund manager. Investing in a mutual fund may come with higher fees than other investments.

Bonds

By purchasing a bond, you are essentially loaning money to a government, company, or other borrowing entity. In return for your loan, the debtor (the bond issuer) is required to repay both the debt and any associated interest payments. 

However, it's worth noting that on occasion companies and countries default on their bonds, meaning that they can't make scheduled payments to the bondholders which will result in the investor losing money. This is almost always a last resort option as these establishments know that defaulting will scare off investors going forward.

A bond is a fixed-income instrument that pays periodic interest payments until the agreed-upon end date when the final payment is made and the loan's original amount is repaid.

Commodities

Commodities are raw materials that can be traded for one another, such as gold, beef, and gas, expanding to foreign currencies and indexes. Funds that invest money in commodities will typically invest in resources such as precious metals (silver, gold), energy resources (natural gas, oil), and primary agricultural products (wheat). 

Cryptocurrencies

Cryptocurrencies are digital assets that are operated on decentralized networks free from government or financial institutional control. While considered high-risk, several cryptocurrencies (such as Bitcoin) have shown incredible gains over the last decade. Various investment accounts in mainstream firms are starting to incorporate cryptocurrencies into their portfolio.

Other investment options (real estate investments, etc)

Other investment options include real estate, options, futures, and certificates of deposit. 

Before investing in any of the asset classes mentioned above it is imperative that one understands the financial instruments and their own risk tolerance entirely, as well as the terms involved in the investment, the fees or transaction costs and the risks involved. 

It is also important for savvy investors to understand the tax implications of their investments and the capital gains tax they might be required to pay on any investment returns.

How do investments work?

While each asset class might differ slightly, they all require an upfront investment of capital. The intention is that this will later create a return in a monetary form of higher value. 

When investing in financial products such as bonds, stocks, or a mutual fund, investors will typically have to set up an investment account with a professional such as a brokerage firm or money manager. This person can then advise on which products to invest in and manage your portfolio.

Investing in real estate will involve buying a house, usually done by making a down payment or investing in real estate investment trusts. These properties can either be used to live in or rent out and generate future income. The intention here is that the house appreciates in value over a certain period of time and can later be sold at a higher price. Depending on the property and area these types of investments can range from high risk to low risk.

How investments drive economic growth

Investments are not just for personal or corporate benefits, they play a big role in driving the broader economy. Through factors like building consumer demand and job creation, investing can play a direct role in economic growth. 

For instance, a company might decide to sell stocks and issue corporate bonds in order to raise capital. This capital can then be used to build a factory, create a new product line and hire new employees. This then drives the greater economy while also building the company's and investors' wealth. 

In another example, governments might use the funds raised from corporate bonds to fund public projects, fix the roads, or build social programs in communities. Or individuals might use gains made from investments to further their education or save for retirement. With more income comes more consumerism, in turn contributing to economic growth.

How to start investing

If you're ready to start investing, you will first need to determine your risk tolerance and which asset class you wish to pursue. If you're just starting out, start small and grow instead of taking on too many things at once. Gaining an understanding of your risk tolerance will help you to navigate where start investing.

Research

Before you begin, ensure that you have a thorough understanding of the market you wish to invest in, and understand all the associated risks. Always do your own research, and don't rely on one outlet or individual to be the sole source of information. If the option is available, consider hiring a professional to assist you. 

Understand market movements

Another important aspect to understand before investing is that markets will always have fluctuations. Even if they grow over long periods of time, they will still go through periods of increases and declines. Don't rely on past performances to dictate future outcomes. 

Open an account

To get started in investing you will need to open an investment account that allows you to both buy and sell the financial instrument. Looking at investing in stock, some investors will open a brokerage account that will execute trades on their behalf, while others might use a portfolio manager who oversees all their investments. Always do your research before parting ways with your money.

Have your financial affairs in order first

While investing is designed to create wealth, it is important to have a grasp on your personal finance beforehand, and ideally have an emergency fund set up for any unforeseen expences (so that you won't have to tap into your investment accounts).

Conclusion

An investment is the act of buying an asset with the intention that it appreciates in value over time. Before people invest it is imperative that one establishes their risk tolerance to establish how much risk one has to navigate.

Investments can be managed by professionals or individually, depending on the investors preference. It is also important to note that return on investments will typically be imposed by capital gains taxes, depending on the jurisdiction. 

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You've likely come across the term "ERC-20" in your crypto endeavours, with plenty of these token standards currently ranked in the top 10 (even top 100) cryptocurrencies. But what does ERC-20 actually mean, and what is a token standard? In this piece, we're uncovering everything you need to know about these popular crypto terms.

To start things off, ERC stands for Ethereum request for comment.

What is a token standard?

Let's start at the beginning. When Ethereum was created to provide developers with a platform on which to build decentralized apps (Dapps), the team incorporated several token standards. 

These token standards allow new projects to create, issue and deploy various functioning tokens on the blockchain. Each token standard is a smart contract that holds a set of particular "rules" that must be followed in order to be created.

In recent years a number of blockchain platforms that provide Dapp creation functionality have created their own token standards, however, for the sake of this article we are only looking at Ethereum.

The most popular token standards on Ethereum are the ERC-20, ERC-721, ERC-777, and ERC-1155 tokens. Each holds its own functionality and would be utilized depending on what the Dapp intends to use it for, i.e. will it be a transferable asset or be used to hold ownership rights. 

What is an ERC-20 token?

By far the most popular token standard utilized on the Ethereum network, the ERC-20 token is a fungible token that can be bought, sold and traded in the blockchain ecosystem. To date over 350,000 ERC-20 tokens have been created. 

Similar to the functioning of other cryptocurrencies like Bitcoin and Litecoin, ERC-20 tokens also hold value and are able to be bought and sold, however, they operate solely on the Ethereum blockchain. This means that all ERC-20 transactions conducted are executed on the Ethereum blockchain network.

The rules associated with this particular token ensure that it can function optimally on the Ethereum blockchain, and must be submitted to the community leadership for approval prior to its launch. While some rules are mandatory and others optional, the required ERC-20 rules are as follows:

• total supply: defines the total supply of the token
• balance of: indicates how many tokens are in a wallet address
• transfer To, Transfer From: must be able to be transferred from one user to another
• allowance: ensures that wallets have a sufficient amount before making a transaction
• approve: checks total supply against transactions

The optional elements are centred around the token's name, its ticker symbol and how many decimal places it would have %u200BFor instance, Ethereum's token name is Ether, its ticker symbol is ETH and it is divisible by up to 18 decimal places.

Examples of ERC-20 tokens are Augur (REP), Basic Attention Token (BAT), Maker (MKR), USD Coin (USDC) and OmiseGO (OMG).

Can you mine ERC-20 tokens?

ERC-20 tokens, unlike Ethereum and its native coins (ether), cannot be mined. That is, new tokens are 'minted' when a planned initial token offering (ICO) or security token offering (STO) event takes place. Usually, these events involve users sending ether to a smart contract address and in return receiving the newly minted ERC-20 token.

An ERC-20 token is technically a smart contract so it's possible for the developer team behind an ERC-20 token to issue new tokens at will. However, this isn't recommended because users would be less likely to trust these tokens if they could be minted at will. There must be a measure of scarcity in order for tokens to be valuable.

The pros & cons of ERC-20 tokens:

Some of the main benefits of ERC-20 tokens include: 

Fungible

Fungible ERC20 tokens are interchangeable, just like cash. Although the coins are technically distinct, they function in exactly the same way. You can trade one for another and they will be functionally equivalent, just like cash or gold.

Fungible tokens are fantastic, and there's a lot of value in the technical aspect. On a technical level, it's worth noting that fungible tokens don't add extra value to goods. They're typically beneficial in a variety of commercial scenarios.

Broad adoption

The popularity of ERC-20 tokens is quite apparent in the cryptocurrency industry. The number of exchanges, wallets, and smart contracts that already support newly-launched tokens has made it easy for new projects to integrate with them. There is plenty of developer support and documentation to go around.

Flexibility

The first thing to note about ERC-20 tokens is that they are highly flexible and may be used in a variety of circumstances and applications. This is due to the fact that these tokens are very customizable. They can be used in a lot of different scenarios such as Loyalty points programs, in-game currencies, or digital collectibles such as NFT's.

Some of the main cons of ERC-20 tokens include:

Mainstream

The popularity of ERC-20 tokens is also their greatest weakness. There are so many projects using the same standard that it's difficult to stand out from the crowd without differentiating your token in some way. Moreover, since they're essentially all the same on a technical level.

Fraud and Scams

It takes minimal effort to create a simple ERC-20 token, meaning that anyone could do it for good or bad purposes. As such you want to be careful with what you're investing in when considering blockchains projects because there are some Pyramid schemes masquerading as legitimate projects out there and trying to get unsuspecting investors involved in their scams. As a result, when looking at blockchain projects, you need to be cautious with what you invest in.

Other ERC Token Standards

While there is a large range of ERC tokens available, below we've outlined the most popular ones (excluding the ERC-20 one as it is listed above). 

ERC-721 

This token standard is for a non-fungible token (NFT) which gained huge popularity in the last year across the gaming and digital art worlds. These tokens represent ownership of something, and cannot be used interchangeably. 

ERC-777 

An evolution of the ERC-20 token, the ERC-777 provides more usability, particularly pertaining to its ability to mint or burn tokens. It also holds improved transaction privacy and an emergency recovery function. 

ERC-1155

This token standard allows for the creation of both utility tokens and non-fungible tokens. Making trading more efficient, the token standard allows for bundling of transactions which in turn saves costs. 

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You might be familiar with buying and selling cryptocurrencies, but have you tapped into the world of crypto airdrops? Airdrops are essentially marketing strategies that are designed to build awareness and interest in a blockchain-based crypto project. As we set out to provide more information and explain what these are we will also touch on the powerful benefits that airdrops can bring to investors. 

What Is A Crypto Airdrop?

A crypto airdrop is when a project gives out its native coins for free as a marketing tool to generate hype, grow its network and gain wider adoption, essentially providing free money. On occasion, the coins require small tasks such as following social media pages, and other times they are entirely free of engagements. 

These coins are then transferred to current or potential users' wallets for free in the hopes of drawing in more business. Airdrops rose to fame in the ICO boom of 2017 and are still used today. While handed out for free, airdrops can increase in value over time, becoming potentially lucrative to the receivers.

Through distributing coins, projects increase their number of holders (a positive metric for up and coming projects) as well as increase their decentralisation (due to increased token ownership). 

How Do Cryptocurrency Airdrops Work?

An airdrop is typically outlined in a project's roadmap and will commence once certain criteria have been met. While airdrops can range from project to project, they typically involve small amounts of cryptocurrencies, often built on Ethereum or other smart chain, being distributed to several wallets.

These coins are usually distributed for free, however, on occasion users will need to perform small tasks related to marketing (like engaging on social media or subscribing to a newsletter) or hold a certain number of coins in their wallet. A successful airdrop will see its recipients promoting the project and generating hype before being listed on an exchange.

What Is The Difference Between An ICO And An Airdrop?

While both are related to new digital currency projects, the major difference between the two is that airdrops are when tokens are distributed for free while ICOs require participants to purchase the project's tokens with an outlined purchase price. ICOs are a source of crowdfunding while airdrops are marketing strategies.

What Are The Different Types Of Airdrops?

As mentioned above there are several different types of airdrops; exclusive, bounty and holder. 

Exclusive Airdrops

These airdrops are centered around active members of the community or early adopters. In exclusive airdrops, coins are only sent to designated wallets. Uniswap is a classic example of this, distributing 400 UNI to each wallet that had engaged in the platform before a certain date. The governance token allowed holders to vote on the project's future developments.

Bounty Airdrops

Bounty airdrops are when users need to engage in the platform in order to claim their tokens. This typically involves activities related to social media (liking a post, joining a Telegram channel, tagging friends, etc.) and the project might ask to see proof before distributing the coins. 

Holder Airdrops

This type of airdrop is for users already holding the project's token to thank them for their loyalty. Typically the project's team will take a snapshot of the wallet balances at a certain time and reward all the wallets that meet the minimum criteria. 

When creating holder airdrops, projects might use other more established cryptocurrencies in the hopes of tapping into their networks. For example, in 2016 Stellar (XLM) airdropped 3 billion XLM to users on the Bitcoin network, granting them free access to the Stellar network. 

The Downside To Airdrops

Naturally, there are ill actors out there who take advantage and have created airdrop scams. These scams might involve a "project" airdropping tokens into a wallet but when the holder attempts to move these tokens their wallet is drained. 

Another example of an airdrop scam is a project enticing you to sign up for the airdrop by connecting your wallet only to take your wallet details and gain access to your account. These are typically conducted through websites and fake Twitter and Telegram accounts that look very similar to the real deal but are in fact phishing scams. 

It's important to DYOR ( do your own research ) when engaging in an airdrop, and know that a project will never require you to send funds in order to "unlock" tokens or require you to provide a seed phrase or private key. 

Another downside to airdrops is that projects can create an incorrect impression of growth. If thousands of coins are distributed to thousands of wallets this might cause the project to look busier and more adopted than it actually is. When judging a project by this metric ensure that it has an active trading volume that reflects the number of wallet holders, if there are plenty holders and minimal activity consider this a big red flag. 

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