What Is Blockchain Technology? A Comprehensive Guide For Beginners

Over the last decade, blockchain & cryptocurrency have become buzzwords in a variety of professions. The ending of 2017 had seen the worth of cryptocurrencies surge, giving these phrases a broader meaning. Only a few people are unfamiliar with these terms. Furthermore, only a tiny percentage of people who often use such terms comprehend their real significance. However, it appears that technology is altering practically every aspect of life nowadays. Researchers are working to improve the technology’s scalability & security characteristics.


Blockchain is a type of public ledger that records all digital transactions. Every transaction is kept separate in block & shared by almost everyone throughout the network, which is one of the unique aspects of blockchain. All of these blocks are linked to one another, preventing the ledger from being altered. The techniques used to protect these transactions are cryptography & distributed consensus procedures. The growing digitalization and smartness tendencies worldwide made blockchain a more accessible concept for the general public.

Satoshi Nakamoto invented blockchain technology in 2008 for use as the public transaction ledger for the first-ever cryptocurrency bitcoin. Satoshi Nakamoto’s decentralized Bitcoin ledger record blockchain aimed to give consumers control over their money so that no third party, including the government, could access & monitor it.

Satoshi Nakamoto, the Bitcoin founder, disappeared in 2011, left behind open-source software that Bitcoin users could update & improve.

Technical & regulatory obstacles will most likely interfere with blockchain’s progress. Bitcoin’s computer processing overheads were extremely high that it could only process seven transactions per second, compared to Visa’s 56,000. Faster computing should solve the problem by 2025.

In the meanwhile, smaller communities may utilize a variety of methods to verify the block’s accuracy. Smaller towns are also much more likely to develop standards & obtain regulatory approval. By 2023, Gartner predicts that more robust platforms will supplant present blockchain technologies. By that time, blockchain platforms will have integrated with corporate software, including ERPs, allowing blockchain solutions to increase globally.

Importance Of Blockchain

Information is the lifeblood of business. The faster & more accurate it is received, the better. Because it delivers immediate, shareable, & entirely transparent information kept over an immutable ledger that permissioned network users can only view, blockchain is excellent for providing that information. The orders, the payments, the accounts, the production, & even more may keep all track by using a blockchain network. You can see all facts of a transaction end to end encrypted since members share a single view of truth, providing you greater confidence & additional efficiencies & opportunities.

Blockchain Types

Blockchain technology is a technology that allows developers to create a variety of blockchain-based apps. This technology has authorized blockchain for use in a variety of industries, including healthcare & charitable organizations. It is a free source technology that individuals and businesses may utilize in various ways to benefit themselves. The use of such technology has rendered third-party involvement with financial transactions obsolete. That’s why blockchain technology is excellent for countries where most people are unbanked. In simple terms, blockchain technology is a peer-to-peer network that allows users to store & exchange digital assets without intermediaries.

Blockchain technology has two different types that are currently in use all over the world. These are the following:

1.      Permissioned Blockchains

These are blockchains that can only validate by the network’s owners & validated users. It signifies that no additional verification of these users’ authority is necessary because they are trustworthy. Governmental institutions & businesses frequently use blockchains, with government departments serving as validated users. Permissioned blockchains could be public or private, & organizations who use them are validated, users.

2.      Permission-Less Blockchains

It is the most widely used blockchain in which each network user participates throughout the consensus process. It’s the blockchain, & a security key protects each block. These blockchains are accessible to everyone, yet nobody can copy & manipulate the transactions taking place.

Blockchain Technology’s Three Pillars

The three essential components of blockchain technology are as follows. They represent a Blockchain’s fundamental properties. When developing new Blockchain software, engineers aim to strike a balance between the three. Most of the time, however, it is impossible to use it, & one of these is the sacrifice to keep its other two.

1.      Scalability

Scalability refers to a Blockchain’s ability to expand its capacity & run activities smoothly. It ensures the system is most likely to maintain stability & function at a high level as the system grows in size & load.

2.      Decentralization

Decentralization refers to the absence of a central node in the system which is responsible for decision-making. Therefore, Blockchain users are self-sufficient while collaborating in a single Blockchain network.

Another benefit of decentralization is how it eliminates the need for a third party to complete transactions. It means that any nodes network does not require the approval of any bank & other entity to perform any transaction. In this way, Blockchain technology lowers transaction costs while creating a lot of trust between participants.

3.      Security

In Blockchain, the most crucial pillar is security. Participants must trust the technology using for assuring the transaction & privacy security, for example. Bitcoin makes use of digital addresses & crypto wallets. It allows users to buy & trade cryptocurrencies without revealing their identities towards the Blockchain network.

Another security concept throughout the Blockchain system is there are no blocks that can be modified & removed. It guarantees that a system is functional & stable, demonstrating its trust towards the participants.

How Blockchain Technology Works?

Over the last decade, blockchain technology is gaining popularity as a means of quickly becoming wealthy. As a result, a growing number of people are interested in investing in blockchain & cryptocurrencies. Understand the full benefits of blockchain technology; it is critical to comprehend its idea & operation. By using 4th simple step, you can understand how blockchain technology works. These are the following:

·       When a Transaction Takes Place:

The first & most fundamental thing to know about how blockchain technology works is because it necessitates a transaction. Regardless of geographical location, the transaction might take place among two persons or businesses. One of them takes on the sender’s role, while the other takes on the receiver’s part.

·       Transaction Validation/Verification

After placing the following transaction, the second step of blockchain technology’s operation is confirming or verifying this transaction. A network of computers rushes to validate the transaction as it is shared around millions of computers worldwide. It ensures every transaction, including the date, place, money, & even the parties involved.

·       Block formation

The transaction is saved into a separate block after network computers have validated it. This block provides all of the relevant data for that transaction. This data could include things like time, location, quantity, digital signatures, & more. Because these blocks were visible to everyone & businesses throughout the network, tampering with the record is impossible.

·       Code/Hash Allocation

The final step in the blockchain’s operation is the allocation of code & hash to each block. Before the transaction, the code is sending to be validated. Because this code is always unique, and the transaction is secure. It’s worth noting that a new block can only be added to the blockchain when the code is assigned

Avoid The Blockwash

Any new technology accompanied by this type has the potential to overthrow the unsuspecting. According to Ray Valdes, the vice president & analyst of Gartner technology analyst, blockchain technology has approaching “peak enthusiasm” & may soon enter a phase of disillusionment, mainly as a result.

According to Valdes & other experts, there is a lot of evidence of companies starting blockchain tests for no reason. When a database could accomplish the job just as well, the recommendation is to use the database, which is a tried & true technology that international regulators have approved.

Blockchain Technology Advantages

Blockchain is using as the technology of open source in a variety of areas. Many businesses throughout the world that transformed as a result of the increased use of this technology. The following are some of its benefits:

·       Speed Of Transaction

Blockchain technology is widely used worldwide due to the fast lightning speed with which it may complete worldwide transactions. It’s worth noting that this technology has completely transformed the banking business around the world. It is because worldwide transactions used to take almost 15/20 days to complete in seconds. With the network of Ripple’s blockchain, for example, the global businesses take only 0.3 seconds to complete.

·       Security

The use of blockchain technology in numerous areas has surged as security threats in the financial industry have grown. This technology’s high level of encryption ensures the security of every transaction. Furthermore, because blocks are available to everyone in the world in a public ledger, no one can change the transactions. Hashes/codes that are unique to safeguard all blocks that store information about specific transactions. Researchers & specialists are still working to improve the security of transactions conducted in the digital world.

·       Transparency

The unmatched transparency of blockchain technology is another benefit. Because all transactions are available to everyone, no other technology can compete with blockchain technology regarding global transaction transparency. Only those with keys have access to these transactions, and they can’t change them. Furthermore, both the sender & the receiver are up to date on the status of a transaction.

·       Cost-Effectiveness

For its cost-effectiveness, the reach of blockchain technology is expanding with each passing day. This technology has reduced the need for intermediaries with financial transactions, which has enhanced transaction speed while simultaneously lowering transaction costs. In blockchain networks, there is no need for any paperwork, which has eliminated transaction delays. The sender & recipient are immediately connected through the blockchain network and are up to date on the transaction’s progress.

·       Collaboration

Collaboration is another significant benefit of blockchain technology because it allows the sender and receiver to work together throughout the transaction procedure, making it more satisfying & seamless. Because there is no need for a third party, blockchain technology is also reliable and speedy.

·       Accuracy To A High Degree

Finally, due to the high degree of accuracy in transactions, blockchain technology is becoming increasingly popular. Transactions are transparent because blocks are visible to everyone on the network. Furthermore, because the information in these blocks cannot be copied or changed, the technology’s accuracy is improved by the links between them.

There are around 1400 different cryptocurrencies that use blockchain technology in their unique ways. Bitcoin, the first cryptocurrency, first employed this technology. Various alternative currencies are adopting this technology in numerous forms to address the multiple challenges in their network. For example, every ten minutes, a new block is created on the Bitcoin network that verifies each transaction. On the other side, on the Ethereum blockchain, this period is decreased to 10-20 seconds, while in the Ripple blockchain network, it takes 0.3 seconds.

Is It Possible To Hack A Blockchain?

Because each member has a duplicate copy of all transactions, Blockchains have shown to be extremely difficult to attack, although they are not secure. Hackers need access to several members to produce fake transactions & have them accepted, which is why it is so tough to hack. Protocols are one thing that is considered a fault. Hackers may exploit a flaw inside the way protocols work to ‘hack’ any system, but it is challenging.

Criticisms & Challenges Of Blockchain Technology

·       Requirement Of Huge Power

Remember how much processing power need to validate transactions? Those computers require power. The alarming rise of power demanded from an extensive blockchain network is epitomized by Bitcoin. Given today’s concerns about climate change, its availability of energy for developing countries, & the reliability of power in developed countries, this isn’t appealing.

·       The Private Key’s Security

Because disclosing the private key to third parties is equal to giving them the authority of bitcoins secured by that key, they must hide it at all times. The private key should be backed up & protected from loss because if it is lost, it cannot recover this, & the cash it secures is likewise gone forever.

·       Speed Of Transaction

The speed of transactions is also a concern. As previously stated, the distributed network must verify each block in a chain, which can take some time.

What Is The Role Of Blockchain In The Corporate World?

For organizations transacting with one another, blockchain technology for business is beneficial. Permissioned users can access the same information by using distributed ledger technology for the exact timing, which improves efficiency, builds trust, & reduces friction. Blockchain also enables a solution’s size & scale to be quickly adjusted & could modify several solutions to do many jobs across industries. The benefits of blockchain for business are base on four characteristics that are unique to the technology:

Consensus: Shared ledgers were updated only once all relevant parties have validated the transaction.

Replication: When a block record of the event is accepted, it replicates across all ledgers for all channel participants. Each network partner sees & shares the same “trusted reality” of transactions.

Immutability: More blocks could add, but it’s not withdrawn, ensuring a permanent record of each transaction & increasing stakeholder trust.

Security: Blocks can only create by authorized entities, & approved entities can only access them. Access is granted only to trusted parties.

Blockchain Technology’s Future

Blockchain technology is at the forefront of practically all conversations about digital currencies due to its widespread use. The majority of experts believe that the use of blockchain technology is limitless. It is at the rear of practically every field of life in a decade or two. In the coming future, may use blockchain technology for the following purposes:

  • Its use in the creation of smart contracts may grow.
  • Experts believe that will eventually utilize blockchain technology to distribute critical medical information.
  • Because most nations’ general elections have hijack, blockchain technology might soon be employed for voting objectives, making elections more fair & efficient.
  • Nobody can deny its use in the eCommerce industry; consequently, blockchains may use to buy & sell all types of properties.

Final Words

Governments have to deal with the difficulty of enabling secure business/commerce & other interactions between strangers as civilization has grown beyond tribes & small groupings. Although the methods are now somewhat different, the purpose remains the same the secure method of transaction.

Big data & IoT are creating a complex world. Blockchain will play a significant role in our digital financial & technical future.

The ‘blockchain’ technology that supports bitcoin could be a component of a new world of technology as big as the internet itself, a wave of innovation that eliminates the middleman in much commerce and allows us to trade goods and services with people all over the world without going through corporate intermediaries. It can completely decentralize civilization, eliminating a need for banks, a need of governments, a need of corporations, & politicians.