Understanding Blockchain: Things Worth Knowing

Stuart H. and W. Scott mentioned blockchain technology first in 1991. They were mathematics professionals and they came across blockchain technology while trying to invent a system where nothing could tamper with document timestamps. Blockchain is a system that allows the reception of information from a lot of individuals. This information, however, cannot be changed. Moreover, this technology is designed in a way that it cannot be controlled by any individual or entity, which makes it so unique.

Before the advent of blockchain technology, companies and individuals were responsible for keeping track of everything that happened on the Internet, but that is not the case with blockchain technology because the responsibility of record-keeping has been spread out to every member on the blockchain network, creating amazing blockchain job opportunities.

To understand blockchain properly, listed below are some basic terms that you should be familiar with to facilitate your understanding.

  • Blocks: Blocks are like containers that help to store data on the blockchain. The types of data that can be stored differ from one system to another. Popular cryptocurrency blocks are known to contain the records of valid transactions that have taken place on the network. They can be imagined as boxes of receipts.

  • Chains: These are formed when blocks connect with other blocks in the network to form a chain of blocks. Hence, the name Blockchain.

Blockchain 102: How Blockchain Works

To better understand how blockchain works, upon creation, it appears to be a blank list with no information provided. After that, designers can create a Genesis Block. It is usually the chain's first link. After the Genesis Block has been built, several people in the network might continue to add information over time.

Nodes are various computer connections. Their job is to oversee transactions in the blockchain network before they are permanently recorded on the blockchain. Different types of transactions are processed by the nodes. They sort, modify and send communications around the network. When users do any type of transaction, a message is transmitted to the entire network, which is then processed by the nodes. The process of "mining" occurs when numerous people on the blockchain network compete for the construction of a block.

A node creates a new block after the mining process is completed successfully. The node then proceeds to share information with the rest of the network. Before adding the block to their personal ledgers, other nodes will examine and validate that it is genuine.

In the blockchain, the term "hash" is frequently used. A hash is a specific marker that stops someone from tampering with data in a block or even exchanging it in a false block. Each block contains the hash preceding it, which is one of the ways to ensure nothing has been tampered with. This naturally results in a system in which clarity is not an issue. This is because anyone inspecting a new block added to the chain may quickly determine whether or not any changes have been made. By the way, these hashes are cryptographic hashes only.

Blockchain technology can be used to purchase blockchain stock like cryptocurrencies. Today you can buy Bitcoin with debit card. However, research is currently being conducted in a variety of industries to see how to increase the usage of blockchain technology. For example, you can create and trade web addresses or domains. Also with the blockchain, there's an advancement in tourism and the introduction of NFTs, among many others.

Blockchain 103: Benefits of Blockchains

Blockchain technology is known to have more within its capabilities to offer numerous sectors. More reasons for its increasing popularity. Some of the benefits include:

  • The Chain Accuracy is improved by eliminating human verification
  • Cost Reductions
  • Decentralization makes it difficult to alter.
  • Transactions That Work
  • Transactions in Confidentiality
  • Transaction Security
  • Transparency
  • The majority of blockchains are open-source.
  • Cost savings through obviating the need for third-party verification
  • The transactions are safe, secret, and quick.
  • Transparent technology provides inhabitants of nations with unstable or weak governments with a banking option and a mechanism to secure personal information.

Blockchain 104: Spheres Where Blockchain Technology Can Be Applied

While blockchain keeps up with the trends projected and fueled by its attributes, below are some of the sectors where it can be rooted:

  • Banking and Finance: For secure record-keeping
  • Currency: For manufacturing cryptocurrencies and monitoring their transactions. Blockchain forms the bedrock for cryptocurrencies like Bitcoin.
  • Healthcare: Healthcare providers can leverage blockchain to securely store their patients’ medical records.
  • Property Records
  • Smart Contracts
  • Supply Chains
  • Voting


Blockchain was created to facilitate the capture and exchange of digital data while preventing its modification. A blockchain is used as the foundation for immutable ledgers, which are transaction records that cannot be modified, deleted, or destroyed. Blockchain technology is also known as distributed ledger technology (DLT). While blockchain technology gains acceptance in a variety of industries, further disruptive movements are inevitable as the technology matures.

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