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What is Blockchain – How blockchain works

What is Blockchain – How blockchain works

1. What is Blockchain Technology

Blockchain is a system of recording information in a way. That makes it difficult or impossible to change, hack, or cheat the system. Blockchain technology is an open-source software project that helps to create decentralized applications (DApps) and smart contracts. These applications are often used as peer-to-peer networks for data exchange.

Blockchain can be viewed as “a distributed ledger” without the need for any central authority or trusted third parties. Which makes it much more secure and decentralized than traditional centralized databases. As of right now, there aren’t many different types of blockchains out there—with the whole space being extremely new and still in its early stages—but they all work similarly.

With this being said, you might be wondering what blockchain technology is exactly? Well, let’s break down what blockchain technology is not: It isn’t cryptocurrency; it isn’t legal records, and it isn’t an identity verification system like E-Voting; nor does blockchain replace any of those things. Instead, blockchains are a collection of code that is constantly running on computers around the world. (known as nodes), maintaining a public record of transactions between users (known as blocks). The process for creating a block begins with anyone using their computer to input numbers into a text field within the blockchain (a process known as mining) until one person FINALLY comes up with an answer to those numbers. To summarize: (blockChain Works)

2. How does it work?

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. Blockchain solves the problem of counterfeiting. If you can’t fake your money, you can’t pretend to be somebody else. Blockchain has been used for centuries in many different areas, including banking and finance, but bitcoin is perhaps its most recent use case.

Bitcoin uses blockchain technology to create a peer-to-peer network that enables any member to send payments without an intermediary or middleman. The system has been praised for its privacy and security issues, but critics say that as it becomes more popular and mainstream, some people will try to abuse it for their own financial gain.

3. How is Blockchain Technology Different from Traditional Ledger-based Systems?

Blockchain technology is a series of computer networks that operate on a peer-to-peer basis. Each node in the network connects to all other nodes. The purpose of blockchain technology is to create a secure and transparent shared ledger of transactions between nodes, where each transaction is recorded in chronological order. The blockchain allows for the sharing of transactional data across multiple parties in an open, distributed environment, with proof that the data has been recorded.

Blockchain also allows for the transfer of assets like virtual currency, stock market data, and even business contact information across multiple systems at once. Blockchain technologies are currently being deployed by organizations to facilitate peer-to-peer transactions (e.g., Bitcoin) or real estate financing (e.g., Ethereum). It has also been used as a tool by businesses to track inventory and payments (e.g., Hyperledger Fabric).

4. The Benefits of Blockchain Technology

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. The blockchain system is used to keep records of all transactions. This is done because any transaction made on the blockchain is permanent and cannot be changed. It can not be altered by anyone except for the blockchain itself. If there are multiple people involved in a transaction, they will have to sign off on the final record before it can become part of the chain.

Blockchain technology can be used to create an encrypted database called a public ledger containing all transactions made on the network. As each block is added to this chain, new “blocks” are created and added to the ledger. Each block contains a timestamp and the previous block’s hash code (a unique number for every transaction on that chain). This unique hash code allows users to see what has happened within each block and link them together in order to verify if a particular transaction was legitimate.

What is Blockchain – How blockchain works

5. Disadvantages and Challenges of Blockchain Technology

a bit. This architecture brings with it many advantages as well as disadvantages.


It can be used to store and transfer data between parties without intermediaries. Blockchain allows for distributed ledger technology (DLT) by using encryption techniques to ensure privacy and security. Blockchain reduces costs by eliminating middlemen and redistributing risk. (How blockchain works)


There are still concerns regarding Blockchain’s scalability and security issues, but there is certainly plenty of interest in the technology due to its use in cryptocurrencies such as Bitcoin, which have experienced tremendous growth in value over the past few years. It remains to be seen how blockchain will continue to adapt for use in mainstream applications; for example, it has recently been proposed that Blockchain-based identity management could be used for authentication purposes in online gaming environments.

In such applications, one user’s identity would be linked with other users through shares of their identities on the Blockchain network. The identity sharing mechanism would also serve as an additional layer of important security measures against malicious behaviour on the network by allowing only certain users to access certain information at any given time based on transactions on the system’s Blockchain network.

[1] This type of application could potentially lead to identity theft if no proper measures are taken against it.[2] Another disadvantage of using blockchains is that new blocks cannot easily be added onto existing blocks or even deleted from an existing chain without invalidating all previous transactions.[3] This process may not only be slow but also expensive since each transaction must first pass through multiple “validation nodes” before they can be added onto any blockchain network.[4] These issues may eventually allow developers and manufacturers some degree of control over what is encoded into their development kits or firmware systems; however, there are still risks involved especially if developers decide to release this code onto the public internet without taking precautions against unauthorized access.

[5] Even though these risks exist, there have been reports about successful use cases for both platforms such as smart contracts[6], automated regulation[7], trading platforms[8], blockchain works, [9], and supply chain management systems[10]. Furthermore, recent research has already shown some promising results when it comes to exploring. (What is Blockchain)

6. Blockchain Use Cases: The Good, the Bad, and the Ugly

tuple (the data) which can be updated over time. Anyone who wants to become involved with the blockchain can join this network by purchasing a privilege called a “certificate.” After the purchase one, they can then use it to participate in the network. In its simplest form, this means that anyone can buy tokens and put them into the blockchain at will. They can also sell them back for whatever value they want. In this way, anyone with access to an internet connection (and possibly some other equipment) can create their own cryptographic ledger and store data on it.

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