By: Kausal Vikash

Starting with blockchain technology for developers


Blockchain has managed to carve a niche for itself in the technology world today. But what has made it so hugely powerful and a successful innovation today? The answer is its versatility. Blockchain can be useful in any industry and can be used until the industry has an immensely robust and technically advanced architecture to support it.
To give you a more clear idea about blockchain, look into the tutorial below. This tutorial explains the career options of a blockchain developer and the skills requirement for it.

1. Why become a blockchain developer?

The blockchain industry is quickly replacing humans. To take up blockchain as a career, one must possess expert computer skills and deep knowledge of programming in order to get a rewarding career in this field. The blockchain technology has an application in every kind of industry today and to take it up as your career choice will get you multiple benefits. A blockchain developer can be quintessentially called a website developer.

Today a website is required by every organization but not all employees possess the skills to develop one. The same theory applies to the blockchain. Although every industry benefits by it, until they have the skilled expertise, they cannot make use of the technology.

Contrary to the myth, cryptocurrency is not the only field that makes use of blockchain. There are various types of sub-specialists in this field including distributed ledger technology and decentralized. Blockchain technology can be used in various other fields and not just cryptocurrency. People should understand the vast advantages and benefits of blockchain specialists and use them to bring immense benefits to the industry.

2. What are the career options for a blockchain developer?

A blockchain developer has a lot of roles. A blockchain developer mainly works on actual implementation and decentralized application. A core blockchain developer works only on the protocols of blockchain along with its fundamental technology. Although this does not sound like a very significant distinction to a newbie, it is actually a very important one. One also gets access to work on different options such as public and private blockchains. A public blockchain’s work is more mainstream and known to the public including actual coins and services offered to the public but the work involved in a private blockchain is only limited to the specific companies it runs for.

3. What are the skills required?

The blockchain is pure programming and it involves various coins and blockchains being built in different languages, for example – Ethereum works on Python and C++ both and bitcoin runs on C++. To become a successful blockchain developer, you need to have web development skills, for example, HTML, NodesJS, CSS and MongoDB. There is also a lot of back-end work involved in the blockchain. The developers need to work closely with the employees from these fields to get the added advantages of networking and security skills. Today, almost all industries have an individual possessing computer expertise else they will not be able to survive in the job market.

Starting with blockchain technology

Today the industry is facing a crunch of developers with the required expertise. Once you become a blockchain developer, you are sure to get a whole lot of opportunities. To get started in this field now is the best time and most lucrative opportunity currently as it is highly in-demand. The blockchain tutorial below will give you the right kick start.

Here are five ways how developers can get started with blockchain technology-

1. Getting started with blockchain

Before you begin, you need to be well versed with blockchain. You need to have a sound idea about blockchain, how it works and how is it applied in business. You should also know how blockchain benefits your business. The history of your business transactions and your asset transfers are recorded in a hash-linked chain. Throughout the network, the technology fosters accountability, transparency, and trust. Today, blockchain is making its way in every industry in order to get accuracy, security, and efficiency.

2. Taking advantage of blockchain open source

Blockchain developers can start with very little experience too. One can start by using the open source from start to finish. There are plenty of code patterns of IBM such as documentation, open source code and others which can help to speed up blockchain development. These can be used for better and faster development.

3. Using Hyperledger Composer

This composer is very essential to become a successful blockchain developer. The Hyperledger Fabric application becomes easier with this composer as this one is an application development framework. Hyperledger is actually a new generation of transactional applications which records the history of transactions in such a way that it interacts with the shared and immutable ledger. Programming and a modeling language can also be used to deploy and define applications and networks of business. These applications allow participants to send the transactions with exchange the assets.

4. How to get support to build the next disruptive blockchain application

Both the enterprise and the startup companies extend support if you need to build the next disruptive blockchain application, for example, IBM offers a platform on IBM Cloud and services with eventually allow different organizations to quickly activate your business. This way, the IBM blockchain platform awaits for you with a newly released starter plan to kick start your blockchain network.

5. How to maintain relevancy

As a blockchain developer, you also need to upgrade your skills in order to maintain relevancy and survive in the digital age. The technology is continuously advancing these days and you need to know the latest advancements that come for blockchain. Technical eminence and digital conversation are the key factors which help you remain up-to-date with blockchain technology.

The working of the blockchain is the ideal blockchain developer tutorial. Other than that, there are three more principal technologies which help-

1. Private key cryptography

2. A distributed network with a shared ledger

3. And the last, an incentive to service the network’s transactions, record-keeping and security as well.

So here is the explanation of how these three technologies work together in order to secure digital relationships.

Also read:Blockchain for beginners

How does blockchain work?

What can be the best blockchain developer tutorial besides the working of the blockchain? There are three principal technologies that together create a blockchain. And the technologies are-

1. Private key cryptography

2. A distributed network with a shared ledger

3. And the last, an incentive to service the network’s transactions, record-keeping and security as well.

So here is the explanation of how these three technologies work together in order to secure digital relationships.

1. Cryptographic keys

Over to the internet, two people wish to transact with each other.

Each of them holds a public key as well as a private key.

To create a secure digital identity reference is the main purpose of this component of this technology. Identity is based on a combination of public and private cryptographic keys which are possessed. These keys together create an extremely useful digital signature. In turn, strong control of ownership is provided by this digital signature.

2. Identity

To secure a digital relationship, strong control of ownership is not enough. These secure digital transactions must be combined with a means of authorizations as well as approving transactions while the authentication is solved. For blockchains, it starts with a distributed network.

3. A distributed Network

Let us understand the benefits and need for a distributed network through experiment- ‘ if a tree falls in the forest’. If the cameras record the falling of trees in the forest, then we can be pretty certain that the tree fell. If the visual evidence is unclear, we have the particulars as evidence. Same is with blockchain, much of the value of its bitcoin is what called large networks where various validators such as cameras which are reached a consensus and they witnessed the same thing at the same time. But they use mathematical verification instead of cameras. In short, in order to secure the network what is matter is the size of the network. That is one of the most attractive qualities of this future technology as it is quite large and possessed so much computing power.

4. System of record

A super useful form of digital interactions emerges when this network is combined with the cryptographic keys. The process starts with A taking their private key which is making some sort of announcements in the case of bitcoin, which you are sending a sum of cryptographic currency and will attach it to B’s public key.

5. Protocol

Then what is broadcast to all nodes in the network is a block which contains a digital signature, timestamp, and relevant information.

6. Network serving protocol

Now you can light challenge the experiment of falling a tree in a forest with the following question that why would there be millions of computers along with cameras waiting for recording whether a tree fell? In short, in the case of Blockchain to make it secure, how do you attract computing power to service the network? This involves mining for public blockchains. There is a reward available for one of the computers by offering your computer processing power to service the network. To help service the public need, a person’s self-interest is being used.  Bitcoins must be unique and have some value and in order to achieve this, the nodes create and maintain transactions for each bitcoin which are serving the network.
They basically express the agreement about new blocks or rejecting invalid blocks and also vote with their CPU power. They add a new block to the chain when a majority of the miners arrive at the same solution. This block can also contain data or messages, hence is timestamped

Here’s the chain of blocks:-

For each blockchain, the type, verification, and amount can be different. Also, the process of verification can be tailored as well. When enough nodes arrive at a consensus on how ought to be verified, rules and incentives can be created if needed.

Also read: The never seen before Miracle of Blockchain Technology

Blockchain data validation and security

Blockchain data validation involves verification of transaction or block of transactions whether it is legal, not double spent. The miners have a role in the data validation such that they take a bunch of transactions, validate them and put into a block when a transaction is made and broadcast to the entire network. Apart from it, one can validate as well as add to the chain by creating hash functions and forming blocks without mining.
Blockchain developer tutorial provides you data validation by the transaction validators-

1. Transaction Validators do provide a service

For the entire ledger, these validators provide a service such that whether a transaction meets protocol requirements for the ledger is determined by them, and make a determination that it is valid simultaneously. By agreeing on the validity of the transactions as well as ordering them specifically to prevent double spending, these transactions are grouped into ordered units by the validators in distributed ledgers.

Blockchain data security

The blockchain is the technology that is widely used to keep data secure and safe as data has now become a valuable resource in the world. The increasing value of your data let cybercriminals to better target your sensitive data. Thus, blockchain is an alternative for your sensitive data in order to keep them safe.

Without the need for a third party or the trust of anyone in the network, bitcoin is the first blockchain application allows a network of users for performing transactions. Nobody can tamper with the data of blockchain because everything is encrypted. Thus, bitcoin has proven itself a remarkably effective tool as an investment in payment as well as earning assets.

Today, everybody can get into bitcoin at the click of a button with the advanced cryptocurrency ecosystem. Today, users can be provided with a wide range of tools in order to buy, sell, or trade as well as for simply storing bitcoins securely and safely with carious cryptocurrency exchanges such as CEX.IO.

The blockchain distributes files across the network in such a way that it is available even when some part of the network is slow as the good cloud is shared by the community, and nobody can alter or see the sensitive data of anyone. Thus, it makes you put control of your data. To keep public records safe and available, it could be useful for public services as well


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