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How to Create Your Own Blockchain - A Step-by-Step Developer's Guide

The future is blockchains. It has the ability to revolutionize everything around us and have a massive influence on the industry, similar to how electricity and the internet changed our lives.

Currently, blockchain is in its early phases, with a significant development process taking place all around the world in order to raise its acceptance rate to new heights. Hyperledger, Corda, and Ethereum are among the leading contenders in the competition. Each of them is attempting to tackle the problem in order to increase the rate of blockchain acceptance and deployment.

In this article, we will look at the ways for everyone to create their own blockchain network.

What are Blockchain Networks?

A blockchain network is a type of technological infrastructure that enables apps to connect to a ledger and smart contract services. Smart contracts are generally used to create business transactions, which are subsequently sent to each peer-to-peer network and are immutably recorded on their copy of the ledger. App users include end-users who use client applications and blockchain network administrators.

A blockchain network can monitor orders, accounts, payments, production, and much more. Because members share a single view of the truth, you can see all facts of a transaction from beginning to end, giving you more confidence and opening up new efficiencies and opportunities.

Also, some blockchain engines combine many programming languages for robustness and easy-to-use for blockchain developers, Ethereum network is the best example.

In most circumstances, many companies form a consortium to build a blockchain, and their rights are regulated by a set of regulations that the consortium agrees to when the network is first created. Other forms of blockchain networks include public, private, and permissioned blockchain networks.

Industries that benefit from various blockchain networks

The number of individuals making use of apps that are decentralized is fast expanding and is continuing to do so. The development of decentralized apps on top of the Ethereum blockchain or any of the several other blockchains that are now well-known requires an established, tried-and-true base. Even while they give a lot of functionality out of the box and save a lot of time and labor in the creating and testing process, popular blockchain apps have their own set of tradeoffs and don't always meet the requirements of everyone's use case. Despite the fact that they provide a significant amount of functionality out of the box, this is still the case. You can take the assistance of our cryptocurrency exchange development company to build your own blockchain network.

Supply chain, banking, real estate, and gaming are all industries where blockchain technology may help. Smart contracts, which are self-executing code stored and accessible on an immutable blockchain, allow companies and people to eliminate the expense and uncertainty of communicating with third parties to do routine business.

The application of blockchain technology may be seen in Bitcoin (BTC), Bitcoin Cash (BCH), Litecoin (LTC), and a plethora of other payment-focused cryptocurrencies. Traditional third-party payment providers are less efficient and accessible internationally in many ways than blockchain.

Furthermore, energy providers and utilities, such as gas and electric utilities, can benefit from blockchain in a variety of ways. Smart grids, for example, require a local marketplace for electricity supply and demand. Another use of blockchain technology is to securely transfer data stored between smart meters in houses.

Moreover, businesses that rely on efficient and secure data ownership and management methods, such as healthcare and digital identity, are discovering new cutting-edge blockchain solutions, aided in large part by blockchain network protocols. Using public-key cryptography, which gives users a public key for receiving transactions and a private key for submitting all the transactions, blockchains allow users to remain anonymous while transferring data securely. Even to transfer funds from an account, we have to use that account's private key for the signature.

Public or Private Blockchain Network

There are a number of different ways which you may use to create a blockchain network. They can be public, private, permissioned, or built by a group of people known as a consortium.

Public Blockchain Network

A public blockchain is one that anybody in the world may access, submit transactions to, and expect those transactions to be included if they are genuine. It also allows anyone to participate in the consensus process, which determines which blocks are added to the chain and what the current state is.

Cryptoeconomics secures public blockchains by combining economic incentives with cryptographic verification using processes such as proof-of-work (Bitcoin) or proof-of-stake (Ethereum). In general, these blockchains are regarded as fully decentralized.

By establishing that specified acts are beyond the range of even the app's creators' power, public blockchains provide a way to protect app users from their developers. Because public blockchains are open, many companies are likely to embrace them without the necessity for third-party verification.

Another reason the public blockchain has gained so many admirers is its anonymity. Yes, it is a safe and secure open platform on which you may do good and effective business. You also don't have to reveal your genuine identity or name in order to join. If your identity is protected, no one can track your network activities.

However, significant computing power is required, transaction privacy is limited, and security is insufficient. These are important issues for blockchain applications across a variety of sectors that you need to know before you consult a Blockchain app development company.


Public blockchains offer a mechanism to protect app users from their creators by demonstrating that some actions are outside the reach of even the app’s developers’ power.

Because public blockchains are open, they are likely to be adopted by a large number of organizations, with no need for third-party verification.

Private Blockchain network

Private blockchains, often called managed blockchains, are permissioned blockchains operated by a single entity. In a private blockchain, the central authority selects who may be a node.

Furthermore, the central authority does not necessarily provide each node the same permissions to perform functions. Private blockchains, on the other hand, are only partially decentralized since public access is prohibited.

Private blockchains include Ripple (XRP), a business-to-business virtual currency exchange network, and Hyperledger development services, an umbrella project for open-source blockchain applications.

Network sharing at the business level typically needs a greater level of privacy due to data confidentiality concerns. If this is one of your requirements, a private blockchain is the ultimate solution. Because only a few users have access to specific transactions, private blockchains are definitely a more reliable network option.

Furthermore, compliance is crucial in every business. Any technology that does not adhere to strict compliance guidelines will eventually fail. Private blockchains follow and contain all compliance standards in their ecosystem to make transactions smooth and simple.


A private blockchain consortium or firm may simply change the rules of the blockchain, rescind transactions, amend balances, and so on. This feature is required in particular situations, such as national land registers.

Because the validators are known, there is no danger of a 51 percent attack due to miner collusion.

Transactions are less expensive since they only need to be validated by a few nodes that can be trusted to have a lot of computing capacity, rather than 10,000.

Private blockchains give a higher level of privacy since read rights are limited.

Similarities between the two:

It's simple to see why people are confused because public and private blockchains have a lot in common.

Both are peer-to-peer networks in which each member keeps a copy of a shared append-only ledger of digitally signed transactions.

Consensus is the mechanism used by both to keep the replicas in sync.

Both give some assurances about the ledger’s immutability, even when some participants are flawed or malicious.

Disadvantages of the two:

Public blockchains take longer than private blockchains to authenticate new data, and private blockchains are more vulnerable to fraud and unscrupulous actors. Furthermore, the centralized model typically promotes an over-reliance on third-party management solutions and favors a certain group of industry participants. To address these issues, consortium blockchains were developed.

Blockchain Technology

Blockchain networks are propelled by incentive structures that are in sync. A community of users, node operators, blockchain developers, and miners, all of whom play roles in a mutually beneficial network ecology, is required for a well-functioning public blockchain.

Key Features of Blockchain Technology

Instead of a single authority, blockchain depends on a decentralized network of users to validate and record transactions. Blockchain transactions are constant, quick, safe, affordable, and tamper-proof because of this feature.


Blockchain networks run across the world, 24/7.


Transactions are delivered straight from the sender to the receiver, eliminating the need for one or more middlemen.


A blockchain's distributed network of nodes provides collective protection against attacks and outages.


Blockchain networks are less expensive to run because they do not have centralized database, rent-seeking middlemen.


Data is visible and cannot be changed once it is timestamped to the ledger, making the blockchain resistant to fraud and other criminal conduct. Similarly, everyone with access to a public blockchain network may see the transactions that have been made.

Blockchain Technology: Issues and Concerns

Even Nevertheless, blockchains that lack a stable ecology of network members or a verified consensus process are vulnerable to attacks and centralized control. Decentralization and throughput the amount of data a blockchain can handle in a given amount of time are important factors to consider. The Blockchain Trilemma balancing and optimizing scalability, decentralization, and security in one network is receiving a lot of attention.

Other worries surrounding blockchain are related to the environment. The Proof-of-Work (PoW) consensus method, for example, often consumes a large amount of power to operate. Other concerns revolve around the technological complexity and intimidation factor that blockchain technology might bring to businesses and individuals.

The quick rise of cryptocurrencies on the global financial scale was only the beginning of blockchain technology's integration into business and our daily lives. More sectors are experimenting with blockchain technology, and more people are becoming aware of the value and benefits that blockchain-based goods and services may provide in their everyday lives. The blockchain business shows no signs of slowing down, and the technology has a lot of potentials to become a component of, or maybe completely replace, our world's digital architecture in the future.

How to Create Own Blockchain Network

Let's take a look at how to build a blockchain in only eight steps.

Step 1: Identify a Suitable Use-case

Because blockchain technology will transform the way transactions will be done in the future, aspiring developers must be qualified and capable of comprehending it. So, before you get involved in the creation of your own blockchain, you need to figure out a business use case that makes business sense.

There are 3 things that blockchains can do very well:

1.Data Authentication & Verification:

It includes immutable storage, digital signatures, and encryption. The blockchain network may store data or information in nearly any format. Blockchains may be used to create a public-private key pair as well as for creating and verifying digital signatures.

2. Smart Asset Management:

Issuance, payment, exchange, escrow, and retirement are all included. A tokenized form of a real-world asset, like gold, silver, oil, or land, is referred to as a smart asset.

3. Smart Contracts:

In blockchain technology, smart contracts are used to digitally execute agreements and eliminate the chance of loss.

Step 2: Identify the Most Suitable Consensus Mechanism

Proof of work was utilized as a consensus method in the first blockchain, which drives the bitcoin crypto-currency. However, today's distributed ledger systems include Proof of Stake, Byzantine Fault Tolerance, Deposit based consensus, Federated Byzantine Agreement, Proof of Elapsed Time, Derived PBFT, Redundant Byzantine Fault Tolerance, Simplified Byzantine Fault Tolerance, Federated consensus, Round Robin, and Delegated Proof of Stake, among others.

Depending on your use case, you must select the most appropriate consensus technique.

Step 3: Identify the Most Suitable Platform

Today, there are several distributed ledger systems available, most of which are free and open source. You must choose the most suitable blockchain platform based on the consensus algorithms and mechanism you choose in step 2.

Step 4: Designing the Nodes

Blockchain systems can be permissioned a land registration managed by the government, or permission-less, Bitcoin Blockchain, where anyone can become a miner. Private, a contract management system applied in a pharmaceutical firm, public, an asset-backed cryptocurrency, or hybrid blockchain solution, a group of banks running a shared KYC platform.

Another thing to think about here is whether the nodes will run on the cloud, on-premises, or both. After that, there are hardware configuration issues like processors, memory, and disc space to consider. You must also choose the base operating systems that will be used as a foundation (usually Ubuntu, CentOS, Debian, Fedora, Red Hat, or Windows).

Step 5: Design the Blockchain Instance

Most blockchain platforms need very carefully planned configuration for the following elements:

  1. Permissions
  2. Asset issuance
  3. Asset re-issuance
  4. Atomic exchanges
  5. Key management
  6. Multi signatures
  7. Parameters
  8. Native assets
  9. Address formats
  10. Key formats
  11. Block signatures
  12. Hand-shaking

Some parameters may be updated during runtime, but some cannot, therefore this is an important step.

Step 6: Building the APIs

Some immutable blockchain platforms have pre-built APIs, whereas others do not. The most common APIs you'll need for your development project are:

  • Creating address and key pairs
  • Acting in audit-related functions
  • Data verification using hashes and digital signatures
  • Storage and retrieval of data
  • Smart-asset lifecycle management like issuance, payment, exchange, escrow, and retirement
  • Smart contracts

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Step 7: Layout of the Admin and User Interface

You'll need to decide on the front end and programming languages at this step. You'll also need to choose external databases and servers (including Web servers, FTP servers, mail servers).

Step 8: Adding Future Tech

Integrating AI, Biometrics, ChatBots, Cloud, Cognitive services, Containers, Data Analytics, IoT, and ML into your Blockchain system may significantly increase its power.

Without a question, blockchain technology, when implemented correctly, can assist society in addressing a variety of pressing concerns. When blockchain technology first appeared, many over-business people hailed it as a worldwide solution. However, blockchain technology has the potential to improve almost all of these fields.

Considerations in New Blockchain Network Creation

Build an ecosystem

When a big number of parties are engaged, blockchain works best. Creating a community inside an organization or sector that understands the technology and its possibilities can help enhance trust between organizations by allowing everyone involved to work out the standards and norms that define the blockchain model.

According to the PwC research, parties should decide:

  • The participation rules.
  • How to make sure that expenses and rewards are distributed equally.
  • What kind of risk and control structure may be applied to the shared architecture?
  • What governance procedures, such as constant audits and validation, are in place to guarantee that the blockchain works as intended?

Design deliberately

Not only must blockchain be properly built to address organizational concerns, but it must also be compatible with existing procedures. If not, such procedures may need to be altered in order to establish the foundation for the blockchain.

Organizations must also consider privacy issues, cybersecurity, compliance, and how they will interact with a blockchain.

Navigate uncertainty

Blockchain is still a developing technology with no regulation. This may change in the future, which means businesses must not only observe but also actively participate in defining the regulatory system.

Companies and society as a whole can benefit by asking regulators questions and offering regulatory ideas.

Businesses should collaborate with authorities to influence new blockchain rules and best practices, according to PwC, and keep an eye on changing regulations.

Developing a Blockchain Solution

You can employ a blockchain developer company if you don't want to learn everything and create a blockchain yourself. Blockchain Developer is a professional who builds software on top of the blockchain called decentralized apps. Because the establishment of the blockchain solution will be handled by experienced specialists who know everything there is to know about it, you will save time and worries.

The length of time it takes for a corporation to construct solutions and the cost of its services is determined by the network's type. For example, if a firm is tokenized through an initial coin offering on the Ethereum platform, the cost is roughly $100,000 and it takes a few months. It can cost up to $5 million a year to construct a unique blockchain. The most basic projects cost between $10,000 and $50,000 and may be completed in less than a month.

The following items are usually included in the cost of development companies' services:

  •  a compilation of the blockchain network core;
  •  development of wallets for various operating systems and device types; – deployment of multiple primary nodes (network nodes) – for example ethereum wallet;
  • the creation of block explorer and mining pool.

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Consensus Algorithm and Decentralized Applications

Blockchain is a distributed decentralized network that enables immutability, privacy, security, and transparency, as we all know. Despite the lack of a central authority to authenticate and verify transactions, the Blockchain considers each transaction to be entirely safe and validated. This is only feasible due to the availability of a consensus mechanism, which is an essential component of any Blockchain network.

A consensus algorithm is a method through which all peers in a Blockchain network achieve a consensus on the current state of the distributed ledger. Consensus algorithms achieve blockchain network resilience and create trust amongst unknown peers in a distributed computing environment in this way. In essence, the consensus protocol ensures that every new block added to the Blockchain is the only version of the truth that all nodes in the Blockchain agree on.

The Blockchain consensus protocol has several particular goals, including reaching an agreement, cooperation, co-operation, equal rights for all nodes, and each node's required involvement in the consensus process. If everything is alright, the block is added to the local blockchain in each node. As a result, a consensus algorithm seeks to identify a common ground that benefits the whole network.

Proof of Work (PoW):

This consensus algorithm is used to choose the next block generation's miner. This PoW consensus algorithm is used by Bitcoin Blockchain. The main goal of this method is to solve a difficult mathematical conundrum and quickly provide a solution. Because this theoretical challenge necessitates a large amount of computer power, the node that solves it first gets to mine the next block.

The original blockchain, which powers the bitcoin crypto-currency, used proof of work as a consensus mechanism. But today there are multiple distributed ledger systems that offer a host of consensus mechanisms such as Proof of stake,

Proof of Stake (PoS):

Proof of Stake (PoS) is the most popular alternative to Proof of Work (PoW). Ethereum's consensus has moved from PoW to PoS. Instead of investing in expensive gear to solve a complicated puzzle, validators invest in the system's currency by locking up part of their coins as a stake in this form of the consensus process. The blocks will then be validated by all of the validators. Validators will validate blocks by betting on them if they find one that they believe can be added to the chain. Validators receive a return proportionate to their bets based on the actual blocks uploaded to the Blockchain, and their stake increases proportionately.

Proof of Burn (PoB):

Rather than investing in expensive hardware, validators 'burn' coins by sending them to an address from which they cannot be recovered. Validators acquire the right to mine on the system based on a random selection procedure by committing the coins to an unreachable address. As a result, validators have a long-term commitment in return for a short-term loss when they burn tokens.

Miners may burn the native money of the Blockchain application or the currency of an alternate chain, such as bitcoin, depending on how the PoB is implemented. The more coins they burn, the more likely they are to be chosen to mine the next block.

Proof of Capacity:

Validators are meant to contribute their hard drive space instead of investing in expensive gear or burning coins in the Proof of Capacity consensus. Validators with greater hard drive space have a better chance of being chosen to mine the next block and winning the block reward.


The blockchain, as you can see, is well-structured. Except for the genesis block, each block has its own hash as well as the previous block hash, making it immutable; if the data in the block is changed, the hash will change and the block will be deleted. The genesis block has no previous hash since it is the first, and there is no previous block. (The genesis block is often referred to as the first block on a blockchain).

The popularity of decentralized applications is skyrocketing. Ethereum blockchain and other well-known blockchains provide a robust, battle-tested foundation for developing decentralized apps. Popular blockchain apps, however, have their own set of tradeoffs and don't necessarily match everyone's demands, even while they give a lot of functionality out-of-the-box and save a lot of time and work in developing and testing.

Several DApps have criteria that none of the existing blockchain platforms can meet. Social apps like Kin and Howdoo are the most prominent examples. In certain situations, creating a custom blockchain may be the best option.

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