Simple Blockchain Implementation in Go

This repository contains a basic implementation of a blockchain in Go. The blockchain consists of blocks that store data, a timestamp, and a reference to the previous block's hash. The main goal of this project is to demonstrate the foundational concepts of blockchain technology and how to create a simple blockchain structure in Go.

Features

• Block Structure: Each block contains:

  • TimeStamp: The time the block was created.
  • Data: The information stored in the block.
  • PrevBlockHash: A hash of the previous block, ensuring the integrity of the chain.
  • Hash: The hash of the current block, calculated based on its contents.
  • Nonce: A number used in the proof-of-work algorithm to find a valid hash.

• Blockchain Structure:

  • A blockchain consists of multiple blocks linked together.
  • The first block is known as the Genesis block.
  • Each block is mined using a proof-of-work mechanism.

• Proof of Work:

  • Implements a proof-of-work algorithm to secure the blockchain.
  • Uses the SHA-256 hashing algorithm to generate a hash for each block.
  • The hash is calculated from the block's timestamp, data, previous block's hash, and nonce.

• Validation:

  • Each block can be validated to ensure its hash is less than the target, verifying its integrity.

Installation

1. Ensure you have Go installed on your machine.
2. Clone the repository:

   git clone https://github.com/crncevicmarko/simpleBlockchain.git
   cd simpleBlockchain
   

How to Run

To run the blockchain program, make sure you are positioned in the simpleBlockchain directory in terminal. Then, use the following command:

go run main.go block.go profeOfWork.go