Selecting The Right Blockchain: Public or Private?

Selecting The Right Blockchain: Public or Private?

Blockchain is a decentralized digital account that records transactions across numerous systems or nodes. Every transaction, or block, is safely attached to the last block, creating a chain of blocks. This technology delivers immutability, transparency, and safety, creating it appropriate for different applications.

Features Of Blockchain 

The essential features of a blockchain contain:


Decentralization is a key characteristic of blockchain. Instead of relying on a central authority, the network consists of multiple participants who validate and verify transactions. This distributed consensus model ensures transparency, removes single points of failure, and promotes trust among network participants.


Blockchain’s security is ensured through cryptography, guaranteeing data integrity and immutability. Once a block is added to the chain, altering its contents becomes extremely difficult due to the cryptographic hashing mechanisms employed, providing a high level of protection against tampering


Blockchain provides transparency by allowing participants to view and verify all transactions recorded on the network.


Blockchain eliminates the need for intermediaries or trusted third parties by relying on consensus algorithms that enable trust among participants.

Difference Between Private and Public Blockchain:

The main difference between private and public blockchains lies in their accessibility, control, and level of transparency.

Public Blockchain:

  • Accessibility: Public blockchains are available to anyone who wants to experience and interact with the network. They are decentralized, suggesting no single entity or authority controls the network.
  • Control: Public blockchains operate on a consensus mechanism, such as proof of work or stake, where multiple participants validate and verify transactions. The decision-making strategy is assigned among the network participants.
  • Transparency: Public blockchains offer high transparency as all transactions and data stored on the blockchain are visible to all network participants. This visibility fosters trust, accountability, and the ability to verify and audit transactions, making public blockchains a reliable and transparent system.

Private Blockchain:

  • Accessibility: Private blockchains are permissioned networks, meaning access and participation are restricted to a select group of known entities. Participants are typically invited or approved by a central authority.
  • Control: Private blockchains are frequently managed by a single association or consortium. The central authority sets the rules and regulations of the network and may have the power to modify or reverse transactions.
  • Transparency: Private blockchains provide selective transparency, where participants have varying access and visibility to the data and transactions. While some information may be kept private within the network, it offers transparency among trusted participants.

Where Are Public and Private Blockchains Used?

Public Blockchains:

Cryptocurrencies: Public blockchains like Bitcoin and Ethereum are used for peer-to-peer digital transactions and as platforms for building decentralized applications (DApps).

Decentralized Finance (DeFi): Public blockchains allow different financial benefits such as lending, trading, borrowing, and generating farming without intermediates.

Supply Chain Management: Public blockchains are suitable for supply chain management as they enable transparent and traceable tracking of goods. By recording and verifying each transaction, public blockchains reduce fraud, increase accountability, and enhance overall transparency throughout the supply chain process.

Private Blockchains:

Enterprise Solutions: Many businesses and organizations use private blockchains to enhance internal processes, such as record-keeping, supply chain management, and intercompany transactions.

Consortium Blockchains: Multiple organizations may


Public blockchains are open to all, like Bitcoin and Ethereum, while private blockchains are limited to detailed participants. Public blockchains are used for cryptocurrencies and dApps, while private blockchains serve business requirements for management and privacy.

Also Read : Is Any Blockchain Connected To Cryptocurrency?


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