What is Blockchain Technology? A Step-by-Step Guide For Beginners





Simply explained, blockchain technology is a decentralized distributed ledger that tracks the provenance of digital assets. The data on a blockchain is designed to be immutable, making it a game-changer in fields including payments, cybersecurity, and healthcare.

Understanding blockchain technology can be compared to a Google Doc. Instead of being replicated or moved, when we create a document and share it with a group of people, it gets disseminated. This creates a decentralized distribution chain in which everyone has access to the document at the same time. No one is locked out expecting modifications from a third party, and all changes are made in a timely manner.

How Does a Blockchain Work?

Consider a spreadsheet that has been copied thousands of times across a network of computers. Assume you have a basic grasp of the blockchain and that this network is designed to keep this spreadsheet updated on a regular basis.

The information on a blockchain is kept in a shared database that is constantly reconciled. This is a network leveraging technique that has a lot of benefits. The data stored in the blockchain database is really public and easily verifiable because it is not housed in a single location.

A hacker would not be able to access a consolidated version of this data. Its data is available to everyone on the internet and is simultaneously hosted by millions of computers.

Blockchain Technology’s Three Pillars:

The following are the three primary characteristics of Blockchain Technology that have contributed to its global acceptance:

  • Decentralization
  • Transparency
  • Immutability


Before Bitcoin and BitTorrent, we were more used to centralized services. The premise is easy to grasp. You have a centralized entity that keeps all of the data, and you must communicate only with this entity to receive any information you require. Banks are another example of a centralized structure. They keep all of your money on deposit, and the only method to pay someone is through the bank.


One of the most exciting and misunderstood notions in the blockchain is “transparency.” Some people believe blockchain gives privacy, while others believe it is visible.

The identity of a person is hidden behind advanced cryptography and is only represented by their public address.

So, even though the person’s true identity is disguised, any transactions made using their public address will be visible. This kind of transparency has never been seen in the financial business previously. It offers an extra layer of responsibility that some of the world’s most powerful institutions want.

To speak just in terms of cryptocurrencies, if you know the public address of one of these large corporations, you can simply enter it into an explorer and observe all of their transactions. This requires them to be open and honest, which they have never had to do previously.

However, that isn’t the best use case. We are certain that the bulk of these businesses will not use bitcoin for all of their transactions, and even if they do, it will not be for all of them.


Immutability in the context of the blockchain refers to the fact that once something is recorded on the blockchain, it cannot be altered.

The blockchain has this quality because of the cryptographic hash function. In simple words, hashing is the technique of obtaining a fixed-length result from an input string of arbitrary length. The transactions are received as input and passed through a hashing algorithm (SHA-256) that produces a fixed-length output in the case of cryptocurrencies like bitcoin.

Who Will Use The Blockchain?

You don’t need to understand blockchain in order for it to be beneficial in your life as a web infrastructure.

Currently, finance is the industry with the most applications for technology. Consider international remittances. According to the World Bank, about $430 billion in money transfers were sent in 2015. And there’s a lot of demand for blockchain engineers right now.

For these types of transactions, the blockchain might theoretically eliminate the middleman. The invention of the Graphical User Interface (GUI), which took the shape of a “desktop,” made personal computers accessible to the general population. Similarly, the most popular blockchain user interfaces are so-called “wallet” programs, which consumers use to buy goods with Bitcoin and store it together with other digital assets.

Identity verification techniques are intrinsically related to online transactions. In the coming years, wallet apps are likely to evolve to include other types of identity management.


Blockchain technology is advancing at dizzying speed, with no indications of stopping down. Excessive transaction costs, double spending, net fraud, recovering lost data, and other seemingly implausible things were proved to be false in the last few decades. All of this, however, may potentially be avoided thanks to Blockchain Technology. Due to the development of blockchain technology, blockchain development company is also growing very fast like Tech Alchemy, Antier Solutions, OrientMCT and many other