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Blockchain Unboxed: All Major FAQs Answered

People are eager to learn blockchain technology concepts. In this article, we try to answer a few questions related to Blockchain which you might have.

Photo by Shubham Dhage / Unsplash

Recently, there has been an explosion in the search for information about Blockchain. People are eager to learn blockchain technology concepts. In this article, we try to answer a few questions related to Blockchain which you might have.

A decentralized ledger or journal that is shared among all of the nodes of a computer system is referred to as a blockchain.

A blockchain is considered an electronic database that holds information in a digital format. Blockchains are probably best recognized for their vital function in cryptocurrency systems like Bitcoin, in which they are used to keep a public ledger of safe and decentralized transactions.

The innovation brought about by a blockchain is that it ensures the accuracy and safety of a data record and establishes confidence without the requirement of a third party that can be relied upon.

The data is organized differently on a blockchain, one of the primary distinctions between a traditional database and a blockchain.

A blockchain organizes the data it stores into groups called blocks, and each block can store a specific data set. When a block's storage capacity is used up, it is sealed off and linked to the block that came before it. This leads to a chain of data that is referred to as the Blockchain.

Blocks have varying capacities. All of the newly received data that comes after a block that has just been added to the chain is compiled into a newly formed block, which, after it is complete, is likewise added to the chain.

With a database, the data is often organized into tables. However, the data is organized into chunks (blocks) linked together in a blockchain. This is how the Blockchain gets its name.

When deployed decentralized, this data structure inevitably generates an irreversible data timeline. When a block is filled, the information contained within it is immutable and is added to this timeline.

In adding a new block to the chain, that block immediately receives a timestamp that is accurate to the second.

Bitcoin Blockchain

When the technology of Blockchain is employed to maintain the records of the transaction of crypto tokens like Bitcoin or Ethereum, it is called Blockchain in cryptocurrency.

In 2008, an individual or a group of individuals going by the name Satoshi Nakamoto established the Bitcoin network to decentralize control of money in a time and place where centralized entities have failed the world.

The Blockchain is an entirely new distributed database decided on a set of mathematical rules outlined in a report called the Bitcoin white paper. January 2009 marked the beginning of operations for the network.

Blockchain technology was initially developed to support the operation of Bitcoin, which is currently the most well-known cryptocurrency.

A cryptocurrency, like the United States dollar, is a virtual exchange medium that uses encryption methods to supervise the creation of currency terms and authenticate financial transfers. In other words, cryptocurrencies are similar to the dollar.

Meaning of Proof of Work Blockchain

To prevent criminal actors from manipulating the system, proof-of-work (PoW) consensus mechanisms require network participants to expend energy solving a complex mathematical challenge.

To verify financial transactions and generate new tokens, cryptocurrency miners rely heavily on proof of work.

Proof of work allows Bitcoin and other cryptocurrencies to process transactions between peers safely without the need for a central authority.

On a large scale, proving one's work in this way consumes enormous energy, and this consumption grows steadily as more miners join the network.

Several other consensus mechanisms, including Proof of Stake (POS), were developed to compete with proof of work.

Advantages of Blockchain Technology


Data stored on a blockchain cannot be altered after creation. The impossibility of tampering with data within the Blockchain means it is used to keep the network secure.

When compared to modern data, historical records are not immutable. CRUD (create, read, update, and delete) is used at the foundational level in conventional databases to guarantee correct application functioning and facilitate simple data deletion and replacement.

Data like this may be vulnerable to manipulation by malicious administrators or hackers.


Since Blockchain is distributed, each participant in the network can independently validate its contents. As a result, people can have faith in the system as a whole.

On the other hand, an old-fashioned database is not transparent and is centrally managed. Users are limited in their ability to conduct verifications at will, and the administration makes only a subset of data available to the general public.

Still, people have no way of checking the information's accuracy.

No Censorship

Since blockchain technology is decentralized, it cannot be censored by any government or large organization. For this reason, the network is immune to interference from any entity.

Meanwhile, a single authority controls all network activity in conventional databases and may even filter data if it chooses. Financial institutions, for instance, have the power to freeze customer accounts.


Since Blockchain generates an immutable audit trail, it is simple to track down any alterations to the network. The conventional database is not permanent since it is not transparent or immutable.

Disadvantage of Blockchain

Effectiveness and Quickness

Due to the increased complexity of blockchain technology, it is significantly slower than conventional databases. To begin, it uses cryptographic signatures to ensure the legitimacy of a transaction. When it comes to verifying transactions, Blockchain also uses a consensus process.

Proof of work is an 'agreement mechanism' with a limited transaction throughput. Last but not least, there's redundancy, wherein every node in the network is essential for verifying and storing every transaction.

It's Expensive

A blockchain network is more expensive than a conventional database. Integrating blockchain technology into a business's workflow necessitates careful strategy and implementation.

Modification of Existing Data

Data recorded on a blockchain cannot be altered without extensive, costly work that involves changing the codes in each block. On the negative, this function makes it difficult to make changes or fix errors.

Blockchain technology, like any other solution, isn't a universal panacea. While many businesses hope to transition from Web 2.0 to Web3, using blockchain technology is not a simple "lift and shift" operation, despite the current excitement.

Before planning any development or migration to Web3, businesses should do their homework and thoroughly study to determine if blockchain technology is a good fit.

Applications of Blockchain

The last time our planet changed significantly was when the internet was invented! Can you imagine a world without Google and other social media sites such as Facebook, YouTube, etc.? It seems implausible.

This time, though, the world may be reshaped by the invention of Blockchain! It would not be wrong to claim that Blockchain is the next big thing in technology world, despite its increasing popularity over the past decade.

Blockchain has applications in virtually every industry imaginable, including healthcare, banking, government, identity, etc. And this does not include Bitcoin, its most popular application.

Asset Administration

Blockchain is becoming increasingly important in the financial sector and is no exception in wealth management. Asset management, in general, refers to the managing and trading of various assets that an individual may own.

Normal asset management trade methods can be quite expensive, especially if the trading involves numerous nations and cross-border payments. Blockchain can greatly assist in such cases because it eliminates the need for intermediaries such as brokers, custodians, brokers, settlement managers, etc.

Payments Across Borders

By enabling end-to-end remittance services without the use of intermediaries, Blockchain has aided in the simplification of these cross-border transfers. Many remittance businesses have Blockchain services that can be used to conduct international payments in less than 24 hours.

Blockchain in Healthcare

Using smart contracts, Blockchain can have a significant impact on healthcare. These smart contracts imply that a contract is formed between two parties without using an intermediary.

The contract specifics are known to all parties concerned, and the contract is automatically implemented when the contract criteria are met.

Wearable personal health records can be encoded using Blockchain to only be available to primary healthcare professionals with a key. They also aid in enforcing the HIPAA Privacy Rule, which assures that patient information is kept private and not accessible to the general public.

Blockchain in Cryptocurrency

Cryptocurrency is one of the most prominent Blockchain applications. One of the numerous benefits of adopting Blockchain for cryptocurrencies is that it has no territorial boundaries.

As a result, crypto coins can be utilized for global transactions. The only thing to remember is that exchange rates may fluctuate, and consumers may lose money.

This alternative, however, is far superior to localized payment applications, such as Paytm in India, which are only applicable in a single country or geographical region and cannot be used to send money to people in other countries.

Certificates of Birth and Death

Many people worldwide do not have a legal birth certificate, particularly in developing countries. Blockchain can assist in solving this problem by creating a secure store of certified birth and death certificates that authorized individuals can only view.

Verification of Online Identity

Online financial transactions cannot be completed without online verification and identification. This is true for any potential service providers in the financial and banking industry.

However, Blockchain has the potential to centralize the online identity verification process, allowing individuals to verify their identity once and then share it with whichever service provider they choose.

Users can also select identity verification techniques such as user authentication, facial recognition, etc.

The Internet of Things

It is a network of interconnected devices that can communicate with one another and collect data that may be utilized to generate valuable insights.

When a system of "things" is linked, it becomes IoT. The most common example of IoT is the Smart Home, in which all home equipment, such as lighting, thermostats, air conditioners, smoke alarms, and so on, may be connected on a single platform.

Blockchain, on the other hand, is required to provide security for this enormously dispersed system. In IoT, system security is only as good as the least secure device, which is the weak link. In this case, Blockchain can ensure that the data received by IoT devices are secure and visible only to trusted parties.

Copyright and royalties are major issues in creative industries such as music and film. These are artistic mediums with no apparent relationship to Blockchain. However, this technology is critical for maintaining security and transparency in the creative sectors.

There are several cases where music, films, art, and other works are plagiarized, and the original artists are not properly credited. This can be fixed by utilizing Blockchain, which contains a precise database of artist rights.

Blockchain can also provide a secure record of artist royalties and deals with large production corporations. Royalties can also be paid using digital currencies such as Bitcoin.

Blockchain Games

Blockchain games are video games that incorporate blockchain technologies such as cryptocurrencies & non-fungible tokens (NFTs).

These games enable players to purchase, trade, or exchange objects in-game with other users, with the game's company profiting from each transaction.

A subset of these games is called play-to-earn games since they feature technologies that allow users to earn cryptocurrencies while playing.

Blockchain games have been around since 2017 and are expected to acquire traction in the video game business by 2021.

Several AAA publishers have stated their intention to incorporate this technology.

Frequently Asked Questions (FAQs)

What is IBM Blockchain?

IBM Blockchain is a division of IBM that helps businesses use blockchain technology.

IBM makes private blockchains that only certain people can use. This is different from public blockchains like Bitcoin and Ethereum.

As the base layer of its blockchains, IBM is known for using Hyperledger Fabric, an open-source blockchain protocol made by the Linux Foundation-hosted Hyperledger conglomerate.

“Hyperledger allows us to customize the visibility of a transaction in a blockchain.”

IBM was one of the groups that started the Hyperledger consortium in 2015. The project includes an advancement library that lets businesses make their blockchain solutions without using a blockchain network like Bitcoin or Ethereum.

What is Hashing in Blockchain?

Hash or hashing is a term that is often used when talking about blockchain technology. Hashing converts data of any duration into a string of a specified length.

This is done by a particular algorithm, which also creates the string. In particular, the SHA-256, or Secure Hashing Algorithm 256 bits, is the hash algorithm for Bitcoin.

This method is a one-way data encryption function, meaning decoding cannot be used to get to the original data.

What is Blockchain in Cryptocurrency?

One of the most popular uses of Blockchain is cryptocurrency. One of the many advantages of using Blockchain for cryptocurrencies is that it doesn't limit where it can be used.

So, crypto coins can be used for transactions all over the world. The only thing to remember is that currency values can change, which can cause people to lose money.

On the other hand, this option is much better than localized payment apps like Paytm in India, which can only be used in one region or country and can't be used to transfer cash to individuals in other countries.

How can Features of Blockchain Support Sustainability Efforts?

Blockchain technology could change the way that sustainability efforts are monitored and put into action. Blockchain's security & transparency might help cut down on fraud and enhance data quality, leading to more sustainability solutions.

A few years ago, Blockchain technology and goals for sustainable development seemed implausible, but as things get better, they are now possible. However, Blockchain is still facing some problems that need to be remedied before it can be widely used for sustainability.

How Does Blockchain Technology Help Organizations When Sharing Data?

In its most basic form, Blockchain is a way to store information that is very hard to hack, steal, or change. It is simply a distributed network of all the exchanges that have happened across the network's nodes.

Each component of the Blockchain keeps track of more than one transaction, and when a data record is introduced, the ledgers of all participants are brought into sync. On a blockchain, transactions are documented using hashes or cryptographic signatures.

Because each transaction uses its hash, frameworks for sharing data can't mess with them. When Blockchain is used this way, people and businesses no longer have to worry about exchanging data in real-time. This is the main reason why blockchains are so good for managing and sharing data that can not be manipulated.