What is blockchain technology?


Blockchain Technology: A technology that stores data in a way that makes it very difficult and impossible to modify the system, fraud and theft. It is based on the processing and transmission of digital records of transactions on the network.

Blockchain can also be defined as a distributed digital ledger (containing data for all transactions). All work records and other related information are collected in one place. All this data is permanent (it cannot be modified, that is, it is not possible to update saved transactions and documents).


Blockchain technology is a technology that stores common records and information (called ‘blocks’) in a system consisting of several databases connected by nodes. Such shops are known as “digital public offices”.

Previous block

The first version of a blockchain-type system was published in 1982 by David Chaum in his study “Computer Systems Created, Maintained, and Validated by Mutual Credit Parties”.

Then Stuart Haber and W.Scott Stornetta extended the research in 1991.

All he did was successfully demonstrate how to create a blockchain that contains the date and time. Satoshi Nakamoto first promoted the concept of blockchain technology in 2008.

He learned this concept and set the time for each block individually, without the help of a central authority or manager. These developments are very innovative and form the basis of the blockchain.

How does blockchain work?

The blockchain approach is based on three technologies:

  • key to encrypt
  • A node system that uses a public registry
  • Computer technology that tracks network activity and history

The encryption key consists of two keys.

Private key
Public key

These activities help both parties to successfully complete the transactions and transactions involved. These two keys are unique to each person and their purpose is to create a secure digital identity reference.

This secure identity is one of the most important aspects of blockchain technology. In the case of cryptocurrencies, the identifier used to verify and process transactions is called a “digital signature.”


Administrators use this ID for all authorized transactions and approve payments and other matters.

Verification occurs after a successful computer transaction between two entities connected to the network.

Basically, blockchain users use encryption keys to perform various digital transactions on the network.

Types of Blockchain Technology

Here are the types: public blockchain

  • Private blockchain
  • Block Mix
  • Side chain block

Public blockchain

This type of computer system is unique and available to anyone who wants to make or verify an “authorization.” Money transaction/transfer. Certified transactions are received by miners.

The technology used in public blockchains is proof-of-work or token contracts. Blockchain Technology for Bitcoin

Private blockchain

These blocks are not public and access is restricted. Anyone who wants to join must have access from an administrator.

Block Mix

A blockchain or hybrid blockchain includes both public and private components, such as a permissioned blockchain. In contrast, single peer blockchain networks are controlled by multiple companies.

Of course, it is very difficult to get started, but once you do, they can provide more security. Blockchain consortia are also useful when you want to collaborate with other companies.

Side chain

A sidechain is a type of block on the side of the main chain.This allows users to manage transactions between two different blockchain systems, increasing speed and efficiency. Liquid Network is an example of a side chain.

Benefits of blockchain technology

The benefits of blockchain are as follows:

Safety is the biggest benefit. Because information is shared between billions of devices and regularly verified, the blockchain is incorruptible and secure.While we can look at traditional transaction systems and see them as better, open blockchains are often slow and unreliable.

Each ledger of a node has one instance, so it is stable.

  • It doesn’t matter if it stops or breaks.
  • This builds trust and security among network users.
  • It is very difficult to change or remove the established blocks.
  • Overall, simply removing middlemen and third parties reduces transaction costs and makes trading more accessible.

Disadvantages of blockchain technology

Any technology has its drawbacks.

  • According to many experts, this technology can lead to risks, challenges and uncertainties.
  • Many users and administrators have expressed concern about accountability and ownership of blockchain networks.
  • We don’t know if companies can make the necessary investments in blockchain to build, integrate and manage networks.
  • This system takes a lot of work to update the system and data.
  • Users must keep records of their transactions to protect and prevent loss of funds.
  • For large volumes of books that users can download, the laptop will fail over time if it has too much memory.
  • Blockchains are vulnerable to attacks that can be overwhelming and problematic for other users.

What is its value to marketers?

If you have a business and want to manage multiple transactions, you should focus on how blockchain technology can strengthen and complement your business.

Analyze the security and settlement risks of a secure transaction and understand how many back-office and other tasks are most likely to be compromised.

Maybe if you’re in some kind of supply chain, you can ask your customers to follow your steps digitally. This is especially true for large enterprise suppliers.Think of ways to work together.

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