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Blockchain Technology What is it and How it works?

Blockchain Technology

If you want to know what the Blockchain is and how it works, this article will give you a quick overview of the technology.

Blockchain technology has become a hot topic this year with the rise of cryptocurrencies, such as Bitcoin and Ethereum. Within the finance industry, there are a fair amount of questions surrounding what it is, how it works and whether or not it is a solution to some of the benefits that blockchain could bring to various different industries. First, let’s take a look at what blockchain is and how it works.

What is Blockchain Technology?

Blockchain Technology is a public, open-source digital ledger that was initially used to record all cryptocurrency transactions that have ever taken place. Blockchain is a distributed database that can be shared among disparate participants who need to record and share transactions. It’s a sort of giant spreadsheet or database, but it’s not as simple as just having one big Excel file on a computer somewhere – it’s spread out across several different computers around the world, so no single person has control over it. It’s maintained by a network of computers, not by a single entity. Each transaction is recorded and validated through a mining process where the data, or media file, is linked to the previous pieces of information on the chain. The resulting data forms blocks and ties together in chronological order like links in a chain.

You can think of it as a giant record book with no central entity controlling it. Instead, it uses cryptography to verify transactions and maintain security over information. Blockchain is a technology that acts as an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way. It’s used to track ownership of digital currency, but it could be used to track anything from property titles to medical information.

How does Blockchain Technology Work?

Computers around the world can complete a calculation at the same time, which is why this technology is seen as so revolutionary for many industries. This distributed ledger keeps track of every transaction and data exchange that takes place on the network, similar to a bank’s database. There is no central point of control over information or digital currency. It uses a clever mix of advanced cryptography and economic incentives for participating machines to maintain the system and validate transactions without being controlled by any single party. This makes it an extremely secure way of storing data, information and digital currency.

History of Blockchain

The history of blockchain technology can be traced back to 1991 when Stuart Haber and W. Scott Stornetta outlined the idea for the blockchain in their paper “How to Time-Stamp a Digital Document.”

In 2008, Satoshi Nakamoto introduced Bitcoin, which used blockchain technology to create a decentralized cryptocurrency that is maintained by a network of miners with the use of cryptography. It’s believed that Nakamoto was influenced by Haber and Stornetta’s ideas.

Where Is Blockchain Technology Used?

Blockchain is the backbone of most cryptocurrencies. The first use of blockchain was in 2009 by Satoshi Nakamoto with the creation of Bitcoin. This was followed by the launch of Ethereum in 2015 and many others since then.

There are many industries that use Blockchain technology, including:

Music Industry

In the music industry, companies can use blockchain to transparently track ownership and royalty payments for artists. This keeps the money flowing where it’s supposed to be going, instead of getting lost in red tape. It also allows artists to directly interact with their fans and give them incentives for giving back, such as concert tickets or merchandise.

Retail & Logistics

Blockchain technology can be used to track and trace shipments. It allows a retailer to track items all the way through every stage of their supply chain. This can help retailers keep tabs on their inventory and make sure it stays authentic and untainted throughout the process. It’s also completely transparent, which helps protect consumers from counterfeits and recalls.


Blockchain provides a secure, cryptographically-stored, digital record of transactions that can be shared and updated instantly. The technology can be used to create a platform for secure and instant data exchange across multiple platforms without being controlled by any single entity. This could have major implications for health research, peer-to-peer testing and data verification.


Banks can use blockchain technology to share data instantly and securely with other banks, which makes it easier to keep track of transactions. They can also use the technology to exchange money globally in a faster, cheaper and more secure way than they could with traditional remittance methods.

There are a few other use cases for blockchain technology, but they usually follow the same concept – a decentralized system of information storage.

Benefits and Drawbacks of Blockchain


Blockchains can protect and secure sensitive data from online transactions thanks to their high level of security, which is one of its main advantages. Blockchain technology also provides quick and convenient transactions for those who desire them. In contrast to other transaction techniques, which can take several days to complete, it actually only takes a few minutes. Additionally, there is no third-party involvement from governmental or financial entities, which many users view as a positive.


Apparently, there have been issues with private keys when it comes to blockchain and cryptography, which uses public and private keys. One drawback of blockchains is the difficulties a user may have if they misplace their private key. As there are limits on the number of transactions per node, scalability issues are also a drawback. Since there are so many transactions and other duties to do, it may take many hours. Another important drawback of blockchain is that it might be challenging to update or change information once it has been stored.


Q: What is the difference between bitcoin and blockchain?

A: Bitcoin is a cryptocurrency that runs on blockchain technology. The currency itself isn’t the only way you can take advantage of this technology, though. It can be used to exchange all sorts of information, including contracts and sales records.

Q: Are blockchains secure?

A: Yes. Blockchain technology is incredibly secure, which is why it’s a favorite amongst cryptocurrency enthusiasts. It takes careful measures to ensure that all transactions are valid and safe from tampering or manipulation.

Q: What are the benefits of using blockchain technology?

A: Blockchain technology provides a more efficient way to conduct financial transactions and track goods through supply chains. It also allows users to create records that are completely transparent, which can be valuable for those in the healthcare and insurance industries.

Q: What is blockchain technology used for?

A: Blockchain technology can be used by governments to track their citizens, by retailers and manufacturers to track goods from their origin all the way through every stage of their supply chain, by lenders to keep tabs on loans, and by healthcare and insurance providers to verify data.

Q: Can blockchain technology be hacked?

A: Yes, but it’s very difficult to do so. Since blockchain technology is decentralized and isn’t controlled by any one entity, it’s very hard to attack the entire system at once.

Q: What do you need to start using blockchain technology?

A: Blockchain technology doesn’t need much to start working. You will need a computer with internet access and a digital currency wallet, but other than that you can begin using blockchain technology immediately.

Q: How can blockchain help businesses?

A: Blockchain technology can help businesses by making their records easier to keep track of. With the transparency of blockchain, companies can also share information more quickly and efficiently in a secure and reliable way.


Blockchain technology has the potential to completely change the way we do business and handle sensitive information. It’s already transforming industries, like music, retail and banking. With so many users saying it’s an innovative and disruptive technology that could change the world as we know it, it’s definitely something you should keep an eye on.

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