Blockchain – An Overview

Blockchain technology

Blockchain, also known as Distributed Ledger Technology (DLT), makes the documentation of any digital assets consistent and transparent through power distribution and cryptographic hashing.

Using Google Docs as an example, we can create a document and share it with a group.  The document is not being copied or transferred. Rather, it is being distributed which creates a chain of distribution that provides everyone with access to the document at the same time. Then, all changes to the document are made and recorded in real-time and visible to everyone on the distribution list.

Google Docs is a simple analogy, and blockchain is more complex.  It is appropriate, though, because it mirrors three critical technical concepts:

  • Digital assets are distributed, not copied, or transferred.
  • The property is split, allowing full real-time access.
  • The transparent transformation ledger maintains the integrity of the document, which creates trust in assets.

Blockchain reduces risk and eliminates fraud, which makes it a favorable and extremely adaptable technology.

Elements of a Blockchain

Let’s explore three its three main concepts: Blocks, nodes, and miners.

  • Blocks

The series consists of many blocks and each block has three basic elements:

Data in a block.

A total of 32 is called the nonce and a nonce is generated at random when a block is generated and then generates a block title hash.

The hash is a 256-bit number “married” to a nonce. It should start with a large number of eggs (e.g., very small).

When the first block of the chain was created, the nonce formed a cryptographic hash. The information in the block is considered signed and merged indefinitely with nonce and hash unless it is opened.

  • Nodes

One of the most important ideas in blockchain technology is the distribution of power as no single computer or organization can own a chain.  Rather, a distributed ledge with locations is connected to the series. Nodes can be any type of electronic device that stores copies of the blockchain and keep the network running.

Every node has its copy of the blockchain, and the network must approve the algorithm for any newly excavated block for the chain to be renewed, trusted, and validated. As blockchains are transparent, all actions taken on the ladder can be checked and viewed.

Each participant is given a unique identification number that identifies their transaction.

  • Miners

Miners make new blocks in the chain through a process called mining.

In a blockchain, all blocks have a different nonce and hash but also refer to the hash of the previous block in the chain which makes blocking the block very difficult, especially on larger chains.

Making a change in any block at the beginning of the chain requires a reopening of the mines; not only the block and the change but all the blocks that will follow. It’s been described as safety in math because finding gold nonces requires a great deal of time and computer skills.

When the block is successfully mined, the change is then accepted by all nodes in the network, and the miner is awarded financially.


Blockchain technology is becoming more well known, especially with the rise of the well-known example of Bitcoin.  Judging by its success, blockchain is poised to rule the digital world in the future, so the above should give the average person a basic understanding of the concepts.

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