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How can you build a Blockchain and a Cryptocurrency from Scratch?



In this Bitcoin Era, everyone is gradually growing more interested in Cryptocurrency and its technological backbone, the Blockchain. The unprecedented development of this finance chain has taken over the world, like hitting a home run, and the business is booming with relatively higher profit rates at this moment. The newbies, mostly consisting of the Millennials, are keen to invest in the system as well as to know the system better for building their network. It seems quite overwhelming and overambitious for many to create a blockchain network from scratch, but actually, it is pretty simple and impressive.

Step 1:

Choosing Programming Languages 

The Blocks are interrelated, and specific programming languages are needed for composing the data. Firstly, the three most consistently used and pertinent languages are- Go, Python and Javascript. But if anyone wants to go for speed, endurance, and security, they can either use the c/c++ language.

Step 2:

Constructor Method 

The instant actions are predetermined in this step. The constructor method is nothing but the blueprint of the whole design. The headers and the bodies, what are the categories that are needed in the system, are included here. The operational methods of creating, retrieving, updating, and trashing the contents are logged here. The array of blocks represents the whole system, and blockchain properties are constructed under each of the blocks. To know more about bitcoin trading you can visit

Step 3:

Making the Genesis Block

The genesis block on a blockchain is the initial block ever generated in the system. The time when a block is tied to the remainder of the network, it must link to the block before that. In contrast, there is no previous block to refer to in the instance of the first block. As a result, the network generally includes a genesis block. Successive blocks can be similarly built on top of this. It normally possesses a zero value. The system works like a chain even when the functions are different under each of the blocks.

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Step 4:

Procuring the Latest Block

Obtaining the most recent block on the Blockchain helps to ensure that the present block’s hash corresponds to the preceding block’s hash, safeguarding the chain’s validity. Now the process of composing the new block is similar, but the extra functions are thrown here and there as most of the new blocks need modification for their different functionalities. Now the languages play a different role each time. For instance, in the Go programming language, users can arrange the blocks in two different ways- main. Go and block. go.

The main. go provides this structure-

// use the main package

package main

//import the fmt package

import (



func main(){

fmt.Println(“I am building my first blockchain”) // print this

CreateBlock(“The header will be shown here”, “the body will be shown here”) // call the function that will create the block and pass some parameters in it.


While the block.go shows this-

package main

import (

“fmt” // this will help us to print on the screen


func CreateBlock(Header, Body string){

fmt.Println(Header ,”\n”, Body) // Show me the block content


Mostly, the block. Go is supported for the Block construction.

Step 5:

Piling Latest Blocks 

For achieving this purpose, the prior hash of each fresh block is adjusted to match the hash of the preceding block in the network, preserving the chain’s integrity. Because the features of the newest block vary with each computation, it’s necessary to estimate its hash code once more. The fresh block is placed in the blockchain stack once its hash is updated. In actuality, due to the numerous constraints in effect, introducing a subsequent block to a blockchain may not be as simple as it appears. It is, nevertheless, sufficient to explain how a blockchain functions for a simpler and newer coin.

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Step 6:

Testing the System and Wrapping up

It is necessary to check out the system before marking it as a functional one. To accomplish that, you need to run a set of tasks in it first and see if it is doing fine. By confirming the standards of the outcomes, you can decide if it is workable and can end the process there only.

During the Bitcoin Era, as we are running toward this advanced system, we should look for the ways by which we can accomplish the goals either based on the financial interests or the developer interest. But the most important factor is, whatever is done, it should be done in the light of the current market demands, and as much as the above process goes, it is just a basic idea.

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