What is blockchain technology? | step by step guide


A blockchain is a distributed digital ledger that records all of the transactions that take place on the blockchain’s network of computers. Each participant’s ledger is updated once each new block is added to the chain to keep track of all the transactions that have taken place on the blockchain.

Distributed ledger technology refers to a system where a database is maintained without a central server but rather by a group of users. Blockchain is a distributed ledger technology (DLT) that uses a cryptographic hash to record transactions in a permanently verifiable and auditable ledger.

To put it another way, if even a single block in a single chain were altered, it would be immediately noticeable. For a blockchain to be compromised, hackers would need to alter each and every block in the chain in every copy of the blockchain.

As new blocks are added to a blockchain, its security increases dramatically. This is especially true for a distributed ledger like Bitcoin or Ethereum.

Types Of Blockchain Technology 

Let’s first study what characteristics the various blockchain kinds have in common before delving into the specifics of each type. A cluster of nodes operating on a peer-to-peer (P2P) network technology makes up every blockchain.

These four distinct blockchains are:

Public Blockchains

All users with an internet connection and the desire to request or validate a transaction have access to public blockchains (check for accuracy). Payouts go to the “miners” who verify the transactions. Proof-of-work and proof-of-stake are two types of consensus techniques used in public blockchains (discussed later). It’s well known that Bitcoin and Ethereum (ETH) are popular public blockchains.

Private Blockchains

Since private blockchains are closed systems, only authorized users may access their data. To join, users need approval from the network’s manager. The term “centralized” refers to the fact that there is often just one authority over them. Hyperledger is an example of a permission blockchain that is only accessible to a certain group of people.

Hybrid Blockchains

Hybrid blockchain is a kind of blockchain technology that incorporates aspects of both private and public blockchains to provide enterprises with what they see as the best of both worlds. A private permission-based system can coexist with a public permissionless system, giving companies more discretion over which blockchain data is made public and which is kept private.

In a hybrid blockchain, transactions and data are typically private but may be validated as necessary by granting access through a smart contract. Data is encrypted while still being verified as it remains within the network. A private organization’s ownership of the hybrid blockchain does not give it the power to modify previous transactions.

A user is granted full privileges within the system upon joining a hybrid blockchain. Unless both parties agree to a transaction, neither party will know the other’s identity. And then the other person finds out who they are.

Consortium Blockchain

Consortium blockchains often called federated blockchains, are the fourth category of blockchain and are similar to hybrid blockchains in that they combine aspects of both private and public blockchains. It’s distinct since it involves cooperation between several individuals from the same company across a decentralized system. Consortium blockchains are a form of private blockchain in which access is restricted to a specific group, mitigating the security concerns associated with having a single organization manage the network.

Predetermined nodes manage consensus mechanisms in a consortium blockchain. One of its nodes, called a validator node, is responsible for starting, receiving, and verifying transactions. Messages can be sent to or received from any participating node. 

How Blockchain Helping Small Businesses

Blockchain technology has the potential to make managing a small business more accessible and smoother; that might occur in three ways:

Smart Contracts 

The use of blockchain technology enables the development of “smart contracts,” which can then be used to verify and enforce agreements between parties. It may be utilized in any financial transaction, including but not limited to payroll and bill payment, client and customer invoicing, policy creation, inventory management, and fulfilment. Businesses may use smart contracts in their day-to-day operations, and companies like dApp Builder have established the necessary infrastructure to make this possible.

Data Compliance 

There are new norms and regulations about data compliance and breaches, and top 10 blockchain development companies provides a way to validate transactions without revealing the user’s identity. This has the potential to make the whole user experience safer and less vulnerable to hackers.

Digital Transactions 

Blockchain technology is essential when it comes to digital asset transactions, such as when a small firm accepts digital currency payments or issues its own digital assets like NFTs. Allowing purchases with cryptocurrency also helps a company attract customers outside of its immediate area.


Blockchain technology is here to stay, with numerous potential real-world use cases like speedier cross-border payments and smart contracts.

When more businesses see the benefits of the blockchain, they will invest more money, time, and energy into developing applications for it. Although we acknowledge that blockchain technology will continue to be difficult for many, it need not be so for you. We hope that this blog has inspired you.