Different Versions of Blockchain: A Comparative Overview

Blockchain technology has evolved over time, giving rise to different versions or variations of this groundbreaking technology. Each version has its own unique features and characteristics, offering distinct advantages and use cases. In this article, we will explore some of the different versions of blockchain and delve into their key differentiating factors.

Public Blockchain

Public blockchain is the original and most well-known version of blockchain. It is open to anyone who wants to participate and contribute to the network. Public blockchains, such as Bitcoin and Ethereum, operate in a decentralized manner, with transactions validated by a consensus mechanism that involves multiple nodes in the network. Public blockchains offer transparency, security, and immutability, making them suitable for applications where trust and openness are essential. However, they may face scalability challenges due to the need for consensus among a large number of participants.

Private Blockchain

Private blockchain, as the name suggests, is a version of blockchain that is restricted to a specific group of participants. Unlike public blockchains, access to a private blockchain is controlled and limited to authorized entities. Private blockchains offer enhanced privacy and confidentiality since only approved participants can view and validate transactions. They are often used by organizations that require a higher degree of control and privacy over their data, such as enterprise applications and consortiums. Private blockchains offer better scalability compared to public blockchains since they involve a smaller network of known participants.

Consortium Blockchain

Consortium blockchain is a variation that combines elements of both public and private blockchains. It operates as a collaborative effort among a group of trusted organizations or entities. In a consortium blockchain, the participating entities jointly maintain and govern the network, sharing control and decision-making power. Consortium blockchains are ideal for industries or sectors where multiple organizations need to collaborate and share data securely. They offer a balance between transparency and privacy, enabling efficient data exchange and streamlined processes within the consortium.

Hybrid Blockchain

Hybrid blockchain is a fusion of public and private blockchains, combining their respective strengths. It allows for interoperability between different blockchain networks, enabling data and asset transfer between public and private domains. Hybrid blockchains offer flexibility, allowing organizations to leverage the benefits of public blockchains for transparency and decentralization while maintaining privacy and control over certain aspects through private components. This version of blockchain is particularly useful in scenarios where both public and private interactions are required, such as supply chain management and government applications.

Permissioned Blockchain

Permissioned blockchain is a version of blockchain where access and participation are controlled by a governing entity or administrator. It is similar to private blockchains but may have different levels of permission for participants. Permissioned blockchains provide a higher level of control and governance compared to public blockchains. They are often utilized in enterprise settings where trust and accountability are crucial, allowing organizations to validate and verify participants while maintaining the benefits of blockchain technology.


The evolution of blockchain technology has given rise to various versions, each catering to specific needs and use cases. Public blockchains offer openness and transparency, while private blockchains provide enhanced privacy and control. Consortium blockchains enable secure collaboration among trusted entities, hybrid blockchains bridge public and private domains, and permissioned blockchains offer controlled access and governance. Understanding the different versions of blockchain allows organizations to select the most suitable option for their specific requirements and unlock the transformative potential of this innovative technology.

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