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What is Blockchain?

Blockchain, a revolutionary technology, is a decentralized digital ledger that securely records transaction data across many specialized computers on the network. It ensures data integrity through its immutable nature via cryptography and consensus mechanisms, meaning once information is recorded, it cannot be altered retroactively.

Written by Roundable

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11/30/2023

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What is Blockchain?

Blockchain, at its most basic, is a list of transactions that anyone can view and verify. The data is organized into blocks, which are chronologically arranged and secured by cryptography. The earliest model of a blockchain was created in the early 1990s when computer scientist Stuart Haber and physicist W. Scott Stornetta employed cryptographic techniques in a chain of blocks as a way to secure digital documents from data tampering.

How Does Blockchain Work?

Blockchain operates on a decentralized public blockchain, meaning a central authority doesn’t control it. Instead, transactions are verified by a network of computers, known as nodes. Anyone can join the network and help secure it. This decentralization is one of the key features that make Blockchain unique. Blockchain’s permissionless nature means that anyone with an internet connection can participate in the Blockchain network without authorization or permission from a central authority. Blockchain allows users to send and receive payments with anyone on the network, regardless of location or identity.

Unique Features of Blockchain

Blockchain is a distributed system, where hardware or software components located at networked computers communicate and coordinate their actions by passing messages. Many problems that blockchain encounters have already been discussed or solved in a distributed system. The key characteristics of a distributed system are: Concurrency, No global clock, Independent failure. All blockchain transactions are recorded on a public ledger that is visible to all users. This means that anyone can see the transactions that have taken place, including the amount of cryptocurrency involved and the addresses of the sender and receiver.

The Blockchain Standard

Blockchain, with its decentralized and transparent nature, has paved the way for a significant technological revolution. It offers a global digital currency without intermediary fees, making transactions faster and more efficient. Whether you’re looking at it as an investment vehicle, a store of value similar to gold, a way to transfer value around the world, or just a way to explore an emerging technology, Blockchain continues to be a fascinating development in the financial world.

Learn More about Bitcoin

Has Blockchain technology captured your attention? There is a wealth of information about Blockchain on the internet which can be found using a simple Google search. "Do your own research" is a popular phrase in the cryptocurrency space to encourage empowerment of the individual. Have fun learning about Blockchain, and check out our Learning Centre for more articles to help you on your journey.


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