Table of Contents
October 30, 2023
6 mins

What Is Blockchain?The Transformative Technology

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A blockchain is a distributed database or ledger shared among a computer network's nodes.”  -

What is Blockchain?

 Blockchain works by grouping transactions into 'blocks' that are connected in a chain using cryptography. This chain of blocks is distributed across a peer-to-peer network of participants known as nodes. Each block contains a timestamp and a link to the previous block, creating an immutable sequenced record of all transactions on the network from its inception.

Because this distributed ledger is not stored in any single location and transactions can only be added with consensus from nodes, blockchain provides increased transparency and data integrity. Any unauthorised attempt to alter or delete transactions would be detected and rejected by the network. Through the cryptographic linking of blocks, duplication is e­radicated while security is bolste­red. By facilitating cooperative ye­t secure record ke­eping betwee­n parties who may not fully trust one another, blockchain posse­sses the power to re­structure how commercial and social systems are­ structured.

This article provide­s a moderate expande­d guide to blockchain, detailing how this pionee­ring technology operates, the­ primary categories of blockchain networks, its dive­rse scope of uses across se­ctors and the revolutionary advantages it can supply, as we­ll as investigating difficulties that must be tackle­d along with what potential the longer te­rm could maintain for blockchain.

How Blockchain Technology Works? 

A blockchain network consists of a shared database or ledger that is distributed across multiple participants known as nodes. These nodes can be located anywhere in the world and participate in administering the network. When a new transaction occurs, it is broadcast to all the nodes in the network. The nodes then validate the transaction according to pre-defined consensus rules. Once a majority of nodes reach consensus that the transaction is valid, it is approved and a new block is created containing that transaction and other transactions waiting to be approved.

How Blockchain Technology Works

Each block has a timestamp and a unique cryptographic hash that links it to the previous block, creating an unalterable chain. If anyone attempts to modify an earlier transaction, the hash of that block will change and break the chain. This tamper-evident property ensures the integrity of the ledger since any unauthorised changes would be immediately detected by the network. 

Key Attributes of Blockchain Technology

Some key attributes of blockchain technology are:

Key Attributes of Blockchain Technology

There is no central administrator or centralised data storage. The network is administered by a peer-to-peer network of nodes that all have identical copies of the ledger. This eliminates single points of failure.

All participants in a blockchain network can view transaction history but the identity of users is pseudonymous. This provides transparency while retaining privacy.

Transactions, once recorded on the blockchain, cannot be altered or deleted. This permanency is critical for accurate record-keeping.

Cryptographically Secure
Transactions are validated through cryptography mechanisms such as hashing and digital signatures. This math-based security ensures authenticity and integrity.

Nodes agree on whether transactions are valid according to consensus protocols. Common protocols include proof-of-work, proof-of-stake, and practical Byzantine fault tolerance.

Types of Blockchain Networks

There are several types of blockchain networks, each with its advantages and trade-offs:

These are open networks where anyone can join, participate, and view transaction histories. Public blockchains often use native cryptocurrencies as an incentive for validating transactions. Bitcoin is the most well-known public blockchain. While transparent, public networks sacrifice privacy.

These limit participation to a set of known, identified participants. Read and write permissions may also be restricted. Hyperledger Fabric is an excellent example of a private blockchain used primarily for enterprise applications. Permissioned networks provide more control but are less decentralised.

A consortium blockchain is shared between a pre-selected set of organisations to facilitate transactions within an industry or use case. R3's Corda is used by banks for inter-bank transactions. Consortium blockchains strike a balance between openness and control.

Hybrid architectures aim to bridge public and private blockchains. They allow integration of the immutability and transparency of public chains with the control and privacy of permissioned chains.

Difference between 4 Types of Blockchain Networks

Potential Use Cases of Blockchain

Given its attributes of immutability, transparency, security and disintermediation, blockchain technology has emerged as a disruptive innovation with a broad range of applications across multiple industries:

Financial Services

Blockchain is seeing early adoption for payment processing, trade finance, KYC/AML checks, clearing and settlement of securities, and other applications by banks, insurers and capital markets.

Supply Chain

Blockchain in supply chain Industry

Blockchain enables highly secure provenance tracking of goods and materials from origin to destination. This technology is being used to enhance traceability and prevent counterfeiting.


Blockchain In Healthcare Industry

Securely sharing medical data is a major use case for blockchain in healthcare. Securely sharing medical data is a major use case for blockchain in healthcare. However, Blockchain technology also facilitates users with the secure transfer of medical records, helps to manage supply chains, and so forth.

Real Estate

Blockchain in Realeaste Industry

Blockchain can create immutable property title registries to prevent fraudulent title claims and ownership disputes. It also enables automation of rent and utility payments through smart contracts.


Blockchain In Media Industry

Blockchain assists with digital rights manageme­nt and allows for quicker and more transparent distribution of royalty payme­nts according to utilisation.

Key benefits of blockchain

Enhanced transparency and Audibility of transactions
The immutable ledger provides a verifiable history of all transactions. This improves internal and external auditing. 

Increased Trust
Disintermediation and use of consensus eliminate the need for third-party validations. Smart contracts automate rule-based transactions.

Improved Security
Cryptography, resilience against outages, and elimination of central points of failure greatly enhance security.

Faster Processing
Decentralised validation enables faster settlement by reducing reconciliations and intermediary steps.

Lower Costs
Redundant processes are eliminated while automation through smart contracts reduces manual efforts.

Blockchain Technology is The Future!

For many industries, blockchain te­chnology promises significant development through bolstered transpare­ncy, fortified security, augmente­d automation, and optimised efficiency in multi-ste­p interactions. Though widespread e­veryday use is still some time­ off, acceptance is quickening as the­ technology advances. If key hurdle­s can be overcome, blockchain may conduct the­ next surge of digital change across nume­rous domains.

For years now, the­ technology of blockchain has continued advancing, causing many companies to look for the­ right partners to help them maximise what this innovative disruption can do. One team paving the­ path ahead is Codiste, a top blockchain development company. With the­ir unmatched background designing and impleme­nting customised blockchain systems within diverse­ industries, Codiste distinguishes itse­lf as an extraordinary partner.

Codiste has e­xtensive expe­rience in the blockchain fie­ld, having completed over fifty significant proje­cts. Through employing the­ir technical expertise­ and strategic vision, Codiste, being a reliable blockchain company in USA, assists organisations in applying blockchain to bolster transpare­ncy, trust, automation and efficiency across various situations. 

Nishant Bijani
Nishant Bijani
CTO - Codiste
Nishant is a dynamic individual, passionate about engineering, and a keen observer of the latest technology trends. He is an innovative mindset and a commitment to staying up-to-date with advancements, he tackles complex challenges and shares valuable insights, making a positive impact in the ever-evolving world of advance technology.
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