Blockchain Types and Architectures

There are three main types of blockchains: public, private, and consortium. Public blockchains are open to anyone who wants to participate. They are typically used for applications that require a high degree of trust and transparency, such as cryptocurrency and supply chain management.


Blockchain technology has revolutionized various industries, ranging from finance to supply chain management. As businesses and individuals embrace the potential of blockchain, understanding the different types and architectures becomes crucial. In this article, we will explore the fundamental blockchain types and architectures, providing you with a solid foundation to navigate the world of distributed ledgers effectively.

Public Blockchain

Public blockchains are open to anyone and everyone. They operate in a decentralized manner, where multiple participants validate and record transactions on the network. One of the most notable examples of a public blockchain is Bitcoin. It provides transparency, immutability, and security through a consensus mechanism known as Proof of Work (PoW). Public blockchains offer robust security due to their distributed nature but may suffer from scalability and privacy limitations.

Private Blockchain

Unlike public blockchains, private blockchains restrict access to a specific group of participants or organizations. These blockchains are permissioned, requiring participants to obtain permission to join and participate in the network. Private blockchains offer enhanced scalability and privacy since they operate within a controlled environment. They are commonly utilized by enterprises for various applications, including supply chain management and inter-organizational collaborations.

Consortium Blockchain

Consortium blockchains combine elements of both public and private blockchains. They are governed by a consortium or a group of organizations that collectively control the network. Consortium blockchains provide a balance between decentralization and controlled access. In this architecture, pre-selected participants can validate transactions, ensuring efficiency, scalability, and improved privacy compared to public blockchains. Consortium blockchains are often adopted by industries where collaboration among multiple organizations is necessary, such as banking and healthcare.

Hybrid Blockchain

Hybrid blockchains aim to leverage the benefits of both public and private blockchains. They allow for interoperability between different blockchain networks, enabling seamless data sharing and communication. Hybrid blockchains are advantageous when specific data needs to be made public while maintaining the privacy of other information. This architecture enables businesses to utilize public blockchains for transparency and private blockchains for secure and confidential data management.

Federated Blockchain

Federated blockchains are a type of private blockchain that grants control to a group of selected nodes. These nodes operate as a federation, collectively maintaining the blockchain's integrity and consensus. Unlike traditional private blockchains, federated blockchains achieve a higher degree of scalability, making them suitable for enterprise applications that require rapid transaction processing.


Blockchain technology continues to evolve, offering a range of types and architectures to suit diverse business requirements. Whether you seek transparency, security, scalability, or privacy, understanding the different blockchain types and architectures is essential to make informed decisions. Public blockchains provide decentralization and security but may face challenges in scalability. Private blockchains offer controlled access and enhanced privacy but sacrifice some decentralization. Consortium blockchains strike a balance between decentralization and controlled access, making them suitable for collaborative environments. Hybrid blockchains provide the advantages of both public and private blockchains, enabling interoperability and flexibility. Federated blockchains combine select nodes for improved scalability and efficiency. By comprehending the intricacies of blockchain types and architectures, you can harness the power of distributed ledgers to transform your industry, enhance security, streamline processes, and foster innovation.

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