When it comes to understanding Bitcoin, an important aspect to get familiar with is the mining of it. As we explore what is Bitcoin mining and how does it work, we aim to empower you with a greater understanding of how the network functions as well as how blockchain technology facilitates the operations on the backend. Adaptable to many industries outside of the cryptocurrency space, blockchain technology is at the forefront of the tech revolution. Understanding how Bitcoin mining works is the first step to understanding the technology too. 

What does Bitcoin mining entail?

Forget about shovels and dark tunnels, Bitcoin mining is the decentralized manner in which transactions are verified and new coins are minted. Mining also plays a vital role in the maintenance and operation of the network, ensuring both the security and integrity of the platform at all times. The actual process of Bitcoin mining involves miners using sophisticated computers to solve complex cryptography problems.

The Bitcoin network is made up of a number of nodes (computers) and miners around the world that communicate with each other and constantly share the updated record of the blockchain. The blockchain stores all transactions in a transparent and immutable manner, allowing anyone to view it from wherever they are, however, no one can make any changes.

How does Bitcoin mining work?

Let’s say someone in Japan wants to send money to someone in America through the Bitcoin network. The user in Japan would initiate a transaction from their chosen wallet, pay a network fee, and execute the transaction. This transaction would then enter a mempool, a pool of transactions that are waiting to be confirmed. Typically mempools work on a “first come first serve” basis, however, users can opt to pay a higher network fee should they want to push their transaction further forward in the que. 

Miners will then pick up a number of transactions in the mempool and attempt to solve the complex cryptographic puzzle that will lead them to mining the block. The first miner to solve the puzzle is rewarded with the task of verifying the transactions and adding them to a block, in turn receiving the network fees as well as the block reward. Each block on the Bitcoin network can hold 1MB of transactional data. 

While many miners will attempt to solve the math problem using their own resources, only one miner will be successful. This has sparked a conversation, largely fueled by Elon Musk’s recent tweet, over the electricity consumption it takes to mine Bitcoin. Tesla, the company that Musk heads, recently withdrew Bitcoin from their payment options due to the un-eco friendly manner in which the network operates, as it goes against their company ethos. 

Once the miner has verified the transactions, ensuring that the wallet addresses exist and that there are available coins in the senders’ account, all the transactions are added to a block. This block is then added to the blockchain after the most recently added block, each block indicating the hash code of that block and the block before. This ensures that no one can tamper with the order or edit the content of any blocks. 

The user in America will then receive a notification confirming that their wallet has received the BTC, however it will need to go through three confirmations (sometimes more) before being accessible. Each confirmation is represented by a new block added to the blockchain following the block with your transaction. 

What is a block reward?

The block reward is a monetary reward given in Bitcoin to the miners for adding a new block to the blockchain. It is also the process used to mint new coins and in the process enter them into circulation. Alongside the block rewards, the miner responsible for adding the new block to the blockchain will also receive the network fees of each transaction verified within that block. 

This makes Bitcoin mining a lucrative endeavour, however, the start up costs are significant and your success rate will depend on the equipment, power, and cost of electricity in your area.

What is the halving mechanism?

As Bitcoin will only ever have 21 million coins released, Satoshi Nakamoto created a mechanism that ensures the slow release of coins over time. This is called the halving mechanism, and it automatically executes every 210,000 blocks. During the halving the block reward is halved, ensuring that the cryptocurrency remains deflationary in nature.

This means that for every 210,000 blocks added to the blockchain, the block reward given to the miners will halve. To date there have been three halvings in Bitcoin’s history, with the last one taking effect in May 2020. The block reward is currently 6.25 BTC for every block added to the blockchain.

Want to enjoy the benefits of Bitcoin without mining?

There’s another way to get in on the Bitcoin action without the use of sophisticated hardware and high electricity consumption. Users can tap into the Bitcoin network by buying BTC directly from their phones through the Tap Global app. The process is simple, takes minutes, and allows you to own your very own BTC. Through the Tap app users can also trade, store and spend their cryptocurrency, with advanced technology facilitating the process on the backend to ensure smooth and secure trading.

‍

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. 

‍

A consistent member of the top 10 biggest cryptocurrencies by market cap, Cardano has earned itself an impressive position in the market. The innovative project was developed by a team of brilliant minds, including the co-founder of Ethereum, Charles Hoskinson, and aims to be the next generation of Ethereum. Let's explore what Cardano is and why has become a popular cryptocurrency. 

What is Cardano?

Cardano is the blockchain platform that has taken the industry by storm since its launch. Alongside its cryptocurrency, ADA, Cardano provides developers with a platform on which to build decentralized applications (dapps) and smart contracts. Through a more scalable and sustainable model, Cardano seeks to improve on Ethereum's offering and propel the blockchain and crypto industry into a more eco-friendly future. 

Cardano uses a Proof-of-Stake consensus to facilitate the network and is considered to be a third-generation blockchain platform (Bitcoin being the first, Ethereum the second). Unlike other blockchain platforms, Cardano does not have a whitepaper and instead relies on rigorous academic and peer-reviewed research. The platform has numerous ties with universities around the world, contributing to the funding of the development of blockchain research. 

Who created Cardano?

Cardano was first conceptualized in 2015 and later launched in September 2017 by Ethereum co-founder, Charles Hoskinson. His goal was to build a highly scalable and energy-efficient smart contract platform. After leaving the Ethereum team, Hoskinson grouped together a team of expert engineers and academics and set out to build a layered blockchain platform from scratch. 

Today, the platform is developed by a group of organisations that each focus on different elements of the business. The first is the Cardano Foundation which is responsible for standardizing, protecting and promoting the protocol technology. Input-Output Hong Kong (IOHK) focuses on building technological solutions centred around financial inclusion, while its sister company Emurgo is a global initiative designed to "support developers, startups and enterprises in developing blockchain solutions".

Together these companies assist in the growth and development of Cardano. While regulatory news and Bitcoin may be behind many altcoin price swings, Cardano has done well to establish its value in the crypto market and build a community that supports its goals.

How does Cardano work?

Through a Proof-of-Stake (PoS) mechanism known as Ouroboros, Cardano provides peer-to-peer transactions, dapp development and the creation of smart contracts. The layered architecture makes this possible, with one layer, known as the Cardano Settlement Layer (CSL) responsible for validating transactions and maintaining the ledger of balances while the Cardano Computing Layer (CCL) is responsible for the execution of all dapp computations via smart contracts. 

The separation of these two layers allows the platform to offer lower fees, less network congestion and faster transactions. When thoroughly tested in 2017, Cardano was able to process 257 transactions per second (TPS), a large jump from Bitcoin's 4.6 TPS and Ethereum's 15 - 20 TPS. 

Through its network of validators (known as a miner on a Proof-of-Work mining network) who each hold a stake in the network, Cardano is able to deploy smart contracts, facilitate the peer-to-peer exchange of value and provide the building blocks for dapp and token creation. 

What is ADA?

Let's first cover where the name came from. ADA is a nod to the person regarded as the "world's first computer programmer", the 19th-century mathematician, Ada Lovelace. Cardano on the other hand was named after the 16th-century Italian polymath Gerolamo Cardano. Each phase in the project's development is named after famed historical characters pertaining to maths, physics and literature.

While ADA can be used as digital cash to conduct payments, the cryptocurrency has a wider range of uses. The native token to the platform's operations, ADA, can be used to facilitate transactions, as a store of value, to participate in staking functionality, and to pay transaction fees on the network. 

ADA will also be used as a governance token in the future, allowing its holders the ability to vote on upgrades and changes on the platform. This is in line with Cardano's intentions to make the network entirely decentralized and community-driven, incorporating an automated treasury system that would oversee and execute all funding required. 

Cardano's Roadmap

Another interesting element to the Cardano network is that all five development phases are consistently worked on at the same time, as opposed to moving on to the next once one is complete. 

Of the five phases, each focuses on specific functionalities:

Byron - foundation (completed)

Shelley - decentralization (completed)

Goguen - smart contracts

Basho - scaling

Voltaire - governance

Where To Buy Cardano (ADA)

If you're looking to add ADA to your cryptocurrency portfolio, you can conveniently and securely buy the token through your Tap app. If you haven't done so already, simply download the app, complete the quick identity verification step and load your account with funds (crypto or fiat) with which you can buy ADA. The cryptocurrency will then be deposited into your unique ADA wallet, available for your perusal.

Cryptography is the process of converting messages into unreadable text so that only the intended recipient will be able to read them. Cryptography is responsible for the security, anonymity, and trust less transactions of digital currency. – entirely without the services of a financial institution.

We'll define cryptography as the study of methods to exchange sensitive information over an insecure channel in such away that only authorized parties can access it. In our case, this will be exchanging ownership of cryptocurrencies (which is represented digitally), or transferring ownership by signing digital messages.

A bit of history:

Cryptography dates back to the time when people began exchanging messages in forms other than face-to-face conversations(e.g., via written letters). The first known use of cryptography can be traced to Egypt, about 2000 years ago, during the reign of Pharaoh Thutmose III. Other known historical uses of cryptography are in the works of Julius Caesar, who used a simple cipher for messages between him and his generals.

The purpose of cryptography in crypto

A blockchain-based cryptocurrency needs some form of encryption to secure its money supply from being stolen by hackers or malicious software. It also allows for the anonymous transfer of funds between individuals without requiring a trusted third party, such as a bank or government institution. Cryptocurrencies are entirely based on cryptographic ideas.

Compared to cash transfers, cryptocurrencies do have another layer of security built into the blockchain: cryptography. The purpose of which is to validate transactions and prevent unauthorized access to the ledger by keeping all information inside a digital file that only authorized people can see. It's kind of like a physical vault (or safe) where you can keep all your money. But, unlike a physical vault, there's also no way to access the safe without a private key or password.

Usage of cryptography in Cryptocurrency

Cryptography is used in several different components of Bitcoin's security model, as well as in other cryptocurrencies.

Bitcoin addresses, which are used to receive and send funds between people on the blockchain, have both public keys and private keys. Only the owner of an address's private key can spend funds sent to the address, and only the owner of an address's public key will be able to receive them.

Every time you send or receive bitcoins, your transaction is signed with the appropriate digital signature using your private key. Since you can't share your private key with the person receiving your bitcoins, they verify that the signature is correct using your public key. The process of sending and receiving bitcoins between addresses is entirely anonymous and doesn't require any personal information (although there are ways to link transactions to identities).

Cryptocurrencies use public-key cryptography in order to prove ownership of addresses and transactions. This is done with a piece of data known as a digital signature, which is obtained using the sender's private key, and attached to the end of every transaction block along with other information about that block. Each new transaction has its own signature, verifying that the sender owns the address that is being used to send the funds. Since only the owner of a private key can create a digital signature for it, this provides a very strong guarantee that nobody else has sent their cryptocurrency to an address other than the one currently being spent from.

‍

As all things “metaverse” continue to dominate headlines, the virtual world has established itself as front and centre of mainstream media. Decentraland provides a virtual world where users can buy, sell and trade unique assets and engage in interactive apps and peer-to-peer communication alongside in-world payments. The world of Decentraland has seen impressive growth, and it’s about time you learnt about it. 

At its core, Decentraland is a virtual reality platform that allows users to create, experience, and monetize in-house content and applications. Built on the Ethereum blockchain, Decentraland utilizes two main tokens on the platform, LAND and MANA. 

LAND arenon-fungible (NFT) tokens that provide ownership rights to the digital real estate (land parcels) while MANA is the in-house currency that facilitates the sale of LAND and other goods and services available on the platform, like customising one's avatar, for instance. MANA also allows holders to vote on policy updates, subsidies for new developments, and land auctions. 

Decentraland was designed to provide users access to ​​”new artistic medium, business opportunity, or source of entertainment.” The virtual space is made up of 90,601 individual land parcels, each measuring 16m x 16m (256 square meters), and assigned to particular co-ordinates in its “metaverse”.  Each space is assigned to a LAND NFT which records the ownership. 

LAND owners can then develop the land as they please, with several marked districts varying in size and theme. Holders can then lease out the land or provide paid experiences through the creation of animation and interactions experienced on their particular virtual real estate.

Who Created Decentraland?

Decentraland was created by the Decentraland Foundation, founded by ​​Esteban Ordano and Ariel Meilich in 2015, and holds the intellectual property rights as well as maintaining the platform. Before launching, the foundation, which still holds 20% of the total MANA supply, created a decentralized autonomous organization (DAO) allowing the users to make governance decisions. 

In 2017 the project underwent a successful ICO, raising the equivalent of $26 million at the time. These funds were used to drive future operations. 

How Does Decentraland Work?

The core function of the Decentraland network is to track ownership of land parcels, while users engaging in the platform are required to hold MANA in order to participate. 

Through a system of smart contracts each land parcel is tracked on the consensus layer, with each parcel’s own coordinates, owner, and a reference to the content within the parcel. 

The content layer then holds the specifics for each parcel, including the all static audio and visuals, the placement and behavior of items, as well as P2P interactions such as gesturing, voice chat, and messaging. There is then a real-time layer that facilitates all the social interactions of the user avatars.

Decentraland also hosts a marketplace where users can create scenes and wearables and manage and exchange LAND tokens, priced in MANA. 

What Is MANA?

MANA is the governance and in-house currency for the Decentraland ecosystem. With a total supply of of 2.19 billion MANA, roughly 600 million MANA have been burned in LAND transactions bringing the previous total supply down substantially. 

MANA facilitates the platform’s aim of providing a customizable and shared virtual reality space that connects users around the world.

How Can I Buy MANA?

If you’d like to join the metaverse and become a part of the Decentraland virtual community, you can simply buy MANA directly from your Tap account. As part of a string of newly supported cryptocurrencies, MANA is now available for trade on the Tap app, allowing users to buy, sell and spend MANA as they please. 

Decentralized finance, or "DeFi," refers to financial services that provide many of the same features as traditional banks - like earning interest on your money and borrowing from others - but without middlemen who take a fee or charge interest, paperwork, or privacy trade-offs. A chartered accountant and Blockchain do not have much in common, but they are starting to as DeFi and FinTech take over. I

nstead of relying on financial services like banks, users can utilize smart contracts on blockchain. Cryptocurrencies ensuring even more ease of use for DeFi users, providing the hottest speeds, fees, and transparency. Defi and digital currencies are growing in popularity thanks to the perks of Blockchain technology. Let us get more into the concept and how it caters to a larger audience.

The aim and use of DeFi

Decentralized finance is the future of financial services, and it's already here. The aim of DeFi is to provide a decentralized financial services platform that is open and accessible to anyone in the world, using tech like crypto to help advance the everyday life of anyone and any business willing to give decentralization a try.

In the past decade, we've seen a rise in peer-to-peer lending platforms such as Lending Club, Patreon, BTCJam, and an explosion of digital currencies such as Bitcoin and Ethereum.

All of these developments have taken us one step closer to the decentralized future of finance that we've been dreaming about, but there's still more work to be done.

What's wrong and how can DeFi fix it

Many institutions in the financial sector are slow and expensive when it comes to providing basic services like payments. Online lender contracts can charge interest rates as high as 30 percent, and the global remittance industry charges fees that can be as high as 12 percent.

These fees and delays mean some of the most vulnerable individuals of our society are paying the highest prices for financial services when they need them most. While the traditional financial system can be slow and expensive, it doesn't have to be this way. Decentralized finance (DeFi) is an emerging category of services where trust intermediaries such as banks are replaced with cryptographic code and smart contracts, which reduces costs for everyone involved - especially when it comes to international payments.

DeFi is a new category of services that are globally accessible and built on top of blockchain infrastructure, without any charge or barrier to entry. It's also much more secure than traditional financial systems because the technology used isn't connected to a central server that can be hacked. DeFi users smart contracts applications to ensure ease of use and instant transfers of information and funds.

Your money is always yours; it's just moving from one smart contract to another. No permission from an intermediary is required in order to use it. All you need to do is have a cryptocurrency wallet, computer or mobile device, and internet connection like everyone else using DeFi services today.

DeFi isn't coming, it's already here

When you ask yourself, "where is DeFi going?", the answer is simple: everywhere. DeFi can be used from every corner of the world, and it's already available today. Innovation at its finest.

DeFi services are not theoretical. They're already being used by real people today to make real asset payments, earn interest on their digital savings, and borrow money from both friends and strangers, all without ever going through a bank or traditional financial institution. Whether you are investing, a money maker, or an asset holder, the shift to DeFi is inevitable.
Blockchain technology provides the first-ever opportunity for these separate building blocks to come together in order for the entire financial system to work seamlessly without any intermediaries, so it will only get better with time. From an economic standpoint, DeFi offers better rates and all the perks of FinTech. Cryptocurrency assets like Ethereum have seen plenty of investment opportunities arise as DeFi and Blockchain merge.

DeFi pros and cons

In order to get a complete picture of what DeFi is, it's important to understand all the good and bad parts that we are facing now. So let's dive into the details.

DeFi pros:

• The interest rate on savings and money lending is relatively high, just as it would be without intermediaries.
• Financial services are more accessible than in traditional bank systems because there aren't any barriers to entry, like non-existent internet infrastructure or bank account fees.
• Transaction and disruption times are much faster because DeFi transactions can move directly from peer to peer without having to go through intermediaries.

DeFi Cons:

• Some transactions might not be as private due to the public records of smart contracts on a blockchain (keeping that in mind, transparency is always beneficial). This however increases security because fraud or reversal can't happen.
• Access to DeFi services can be limited if you live in a part of the globe where these services aren't supported or don't have high enough adoption rates, as compared to traditional banking systems in developed countries. Regulator issues may also occur.
• There isn't a built-in mechanism for handling consumer disputes between peers because the technology simply wasn't designed with this function in mind.
• It's difficult to understand what you're getting yourself into when joining a DeFi service, since it varies from one application to the next and is based on new technology. This doesn't have to be the case in the future.
  

As of now, it's still the early days for DeFi and there are some challenges to overcome before we can look at it as a real alternative. There's still a lot of work to be done, but it will all pay off in the end.