What Is Blockchain Technology? A Step-By-Step Guide For Beginners


In the past decade, blockchain technology has emerged as one of the most promising technologies in the world. Blockchain networks have become the foundation for cryptocurrencies like Bitcoin, but they can also be applied to a variety of uses outside of finance. From supply chain management to online voting systems, there are countless ways that blockchain technology can improve our lives.

What Is Blockchain Technology? A Step-By-Step Guide For Beginners

What is blockchain technology?

Blockchain is an encrypted, distributed ledger. It’s a list of records called blocks that are linked and secured using cryptography. Each block contains a timestamp and a link to the previous block, creating an unbroken chain.

Blockchains can be used to maintain a continuously growing list of records–the most famous example being Bitcoin’s blockchain, which acts as a public ledger for all bitcoin transactions ever made.

How does blockchain work?

The technology behind blockchain is called a “decentralized ledger,” which means that instead of one central database being controlled by an authority like a bank or government, the records are spread across multiple locations. This also makes them immutable and transparent because it’s extremely difficult to make changes without everyone knowing about it.

Blockchain is peer-to-peer–meaning that two parties can interact directly with each other without going through an intermediary (like a bank). This means you don’t need permission from anyone to use it; you just need access to the internet!

Where do cryptocurrencies come from?

Cryptocurrencies, like bitcoin and Ethereum, are created through a process called mining. Mining is the process of validating transactions on the blockchain. Miners are rewarded with new bitcoins or ethers for validating transactions on their respective networks.

It’s important to note that not all cryptocurrencies use proof-of-work (PoW) as their consensus algorithm; some use proof-of-stake (PoS) or other algorithms instead.

What is hash power, difficulty, and mining?

Hash power, difficulty and mining are three concepts that you will encounter when learning about blockchain technology. Hash power refers to the speed at which a computer can solve a hash problem. The difficulty of this problem is determined by how many leading zeros exist in the output of your hashing algorithm (in Bitcoin’s case, it’s 32).

When you mine for cryptocurrencies like Bitcoin or Ethereum, you’re actually competing against other computers on their network who are also trying to solve hashes as fast as possible so they can earn rewards from doing so.

Why does everyone want a piece of the blockchain pie?

Blockchain’s decentralized ledger makes it secure, transparent and immutable. As a result, blockchain is the foundation for new applications that can change how we do business today.

Blockchain technology has been around since 2008 but has only recently gained mainstream attention due to its use in cryptocurrencies like Bitcoin and Ethereum. The technology was created as part of an effort to decentralize digital currency transactions without requiring any central authority or third party intermediary (for example: banks).

What are smart contracts and how do they work?

Smart contracts are pieces of code that can be executed by a blockchain. They are used to facilitate, verify and enforce the negotiation or performance of an agreement between two or more parties. Smart contracts run on a distributed network with no central authority and can be programmed to self-execute once certain conditions have been met.

Smart contracts can be utilized in many different industries including supply chain management, logistics, financial services, healthcare and real estate. The use cases for smart contracts range from simple escrow services to complex autonomous organizations (DAOs).

Blockchain has the potential to transform many industries.

Blockchain has the potential to transform many industries.

In this article, we’ll explain what blockchain technology is and how it works in detail. After reading this guide you will:

  • understand what a blockchain is;
  • know how blockchains work; and
  • have a solid grasp on their advantages and disadvantages.


The world is changing and so is the way we do business. Blockchain technology is bringing with it new opportunities, but also challenges for businesses who want to stay ahead of the curve. The good news is that there are many ways we can use this technology to improve our lives and create a better future for all of us!