https://github.com/od-c0d3r/blockchain-ruby

Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system.
https://github.com/od-c0d3r/blockchain-ruby

blockchain cryptocurrency ruby sha256

Last synced: about 2 months ago
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Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system.

• Host: GitHub
• URL: https://github.com/od-c0d3r/blockchain-ruby
• Owner: od-c0d3r
• License: mit
• Created: 2022-03-05T18:27:10.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-03-11T06:54:00.000Z (about 3 years ago)
• Last Synced: 2025-02-04T14:50:02.135Z (4 months ago)
• Topics: blockchain, cryptocurrency, ruby, sha256
• Language: Ruby
• Homepage:
• Size: 21.5 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        


_⚠️ For education purposes only. This is by no means a complete implementation and it is by no means secure!_

## Contents

- [Contents](#contents)

- [Oreo Coin Blockchain](#oreo-coin-blockchain)

- [Information](#information)

  - [What is a Block ?](#what-is-a-block-)

  - [What is a Blockchain ?](#what-is-a-blockchain-)

- [Usages](#usages)

- [To do](#to-do)

## Oreo Coin Blockchain

A Blockchain ruby app to keep track of OreoCoin Cryptocurrency transactions ( or anY type of data you want ) this project is bassed on [Creating a blockchain with Javascript](https://www.youtube.com/watch?v=zVqczFZr124) tutorial, and I translated it to ruby to practice both languages. 

## Information

### What is a Block ?

In simple words, block is an object that stores mainly three things 

1. `Data` => Any data you want to store for example: a `transaction`

1. Its `Hash` => a digital fingerprint

1. Previous block's `Hash`=> previous block finger print

### What is a Blockchain ?

- Easy : Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system.

- Hard : A blockchain is a decentralized, distributed, and oftentimes public, digital ledger consisting of records called blocks that is used to record any type of data (the most famous appliction is cryptocurrency transactions)

- [Video explanation](https://www.youtube.com/watch?v=SSo_EIwHSd4)

## Usages

- Clone the repo `git clone https://github.com/od-c0d3r/blockchain-ruby.git`

- Run `bundle install` to install dependencies.

- Run `ruby main.rb` on project root

## To do

- Blockchain class

  -  Add auto id counter for adding block to the chain  

  - Verify blockchain (to prevent tampering)

- Simple proof-of-work algorithm

- Generate wallet (private/public key)

- Sign transactions