A blockchain is a growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Blockchain has been in a lot of buzz these days. And that is mainly because it is backbone of the very famous cryptocurrency in the world – the Bitcoin. Many Governments and leading Banks have decided to bring many of their conventional transactions based on Blockchain concept. The applications and potential of this framework is huge and is considered to be changing the way transactions are made in various domains.

Audience

This tutorial has been prepared for professionals aspiring to learn the basics of Blockchain. We tried to explain Blockchain concepts through Bitcoin Crypto Currency. This course is going to give you great understanding for the students and professionals aspiring to make a career in the Blockchain technology.

This tutorial will teach you blockchain technology, the driving force behind the cryptocurrency, Bitcoin. You will learn various aspects of cryptography, process of creating and chaining Blocks, Network & Mining and many other concepts associated with blockchain technology including designing of a blockchain network.

Introduction

In recent years, there is a lot of buzz on Blockchain. Many have described this as a most disruptive technology of the decade. Especially, the financial markets could be the most affected ones.

The technology is being adapted into many verticals like Healthcare, Medicines, Insurance, Smart Properties, Automobiles, and even Governments.

However, so far the most successful implementation of Blockchain is the Bitcoin – A Peer-to-Peer Electronic Cash System, which incidentally is also the first implementation of blockchain technology. Thus, to understand blockchain technology, it is best to understand how Bitcoin System is designed and implemented.

In this article, you will learn what is Blockchain, its architecture, how it is implemented and its various features. I will site Bitcoin implementation while describing the intricacies of blockchain.

The blockchain architecture is not so trivial and many have written good articles, tutorials including several videos. These range audience from Novice to Professionals. In this tutorial, I will focus on the conceptual understanding of blockchain architecture, keeping both Novice and Professionals on mind. Before delving into the blockchain, it is important to know why the need for this new technology emerged? The answer to this question lies in what is known as Double − Spending.