Public vs Private Blockchain: Which One is Right for You? Exploring with CryptoTact

Why Understanding Blockchain Types Matters

Blockchain has long expanded beyond just Bitcoin and has become the foundation for many technological solutions — from decentralized finance to digital identity systems. For startups, traders, and investors, understanding blockchain types is not abstract theory but a practical necessity.

Each type of network — public, private, or permissioned — has its own features that impact transaction speed, data security, and regulatory requirements. Choosing the wrong architecture can cost a project its investments or lead to legal difficulties.

The CryptoTact platform is a vivid example of flexibility. It uses different types of blockchains depending on the task — from public networks for open operations to private solutions for corporate clients. In this article, we will take a detailed look at each blockchain type and explain why choosing the right infrastructure today determines success tomorrow.

A public blockchain is a decentralized network that anyone can access. Any user can join, verify transactions, and participate in the consensus process. It forms the foundation of projects like Bitcoin, Ethereum, and Cardano.

The advantage of public blockchains lies in their maximum transparency and independence. There is no centralized entity controlling the network, which makes it resistant to censorship and failures. However, it’s important to note that public networks often have slower speeds and higher transaction costs due to heavy loads.

On the CryptoTact platform, public blockchains are used to ensure full transparency of transactions in international markets. For instance, when creating open tokenized assets, users can track all movements in real time through integration with Ethereum.

Key Features of Public Blockchains:

• Openness: Access is available to everyone without restrictions.
• Decentralization: No central governing authority.
• Security: High level of data protection through distributed networks.
• Slow speed: Possible delays due to network congestion.
• Anonymity: Participant identities are often hidden behind pseudonyms.

What Is a Private Blockchain?

A private blockchain is a closed network with access restricted to selected participants. Management is centralized: a specific organization or group regulates who can read, write, and verify the data.

Such networks are often used by large corporations and financial institutions to enhance the efficiency of internal processes. Examples of private blockchains include Hyperledger Fabric from IBM and R3 Corda for banking operations.

On the CryptoTact platform, private blockchains are applied to organize corporate tokenized transactions where strict access control is required. For example, when working with real estate tokens, data is accessible only to licensed brokers and verified investors.

Key Features of Private Blockchains:

• Restricted Access: Only approved participants can join.
• High Speed: Transactions are processed faster due to fewer nodes.
• Operational Control: The organization can modify the network’s operating rules.
• Reduced Transparency: Data is not visible to all users.
• Easy Business Integration: Private blockchains easily adapt to specific company needs.

What Is a Permissioned Blockchain?

A permissioned blockchain combines the features of public and private networks. In this model, anyone may be allowed to view data, but special permission is required to add or modify information.

This architecture ensures a balance between transparency and control. Permissioned blockchains are widely used in areas where open verifiability must be combined with governance — such as logistics, healthcare, and digital identity management.

On the CryptoTact platform, permissioned blockchains are used for projects related to digital asset issuance, where compliance with legal standards is required. For example, when tokenizing startup shares, transaction data is accessible to regulators, but changes can only be made by an authorized body.

Key Features of Permissioned Blockchains:

• Controlled Participation: Approval is required to perform transactions.
• Auditability: All operations are available for real-time auditing.
• Scalability: Easier to scale due to controlled access.
• Flexible Access Rights: Different users can have different permission levels.
• Balance Between Privacy and Openness: A suitable solution for corporate blockchain applications.

Comparison of Public, Private, and Permissioned Blockchains

To choose the right type of blockchain for a project, it is important to understand their main differences. Below is a comparison of the three models based on key characteristics:

Thus, each type of blockchain is suitable for specific goals. On the CryptoTact platform, users can work with projects across all three types of networks, depending on their objectives and requirements for security, transparency, and performance.

Advantages and Disadvantages of Different Blockchain Types

Each type of blockchain has its strengths and weaknesses. The choice depends on the project’s goals, security requirements, transaction speed, and the desired level of decentralization.

Public Blockchains

• Advantages:
  • Maximum decentralization.
  • High transparency of all transactions.
  • Resistance to censorship and attacks.
• Disadvantages:
  • Low transaction speed under heavy loads.
  • High transaction fees during network congestion.
  • Scalability issues.

Private Blockchains

• Advantages:
  • Fast transaction processing.
  • Access and permission control.
  • High performance for corporate tasks.
• Disadvantages:
  • Centralization reduces resistance to attacks.
  • Low transparency for external users.
  • Trust in the network operators is required.

Permissioned Blockchains

• Advantages:
  • Combination of transparency and access control.
  • Good balance between speed and security.
  • Suitable for regulated industries: finance, logistics.
• Disadvantages:
  • Complex setup and management.
  • Risk of power concentration among network administrators.

CryptoTact successfully implements different blockchain models in its projects, taking into account the specific use cases of each technology to maximize user efficiency and security.

How CryptoTact Uses Different Blockchain Types

The CryptoTact platform implements an innovative approach by combining the capabilities of public, private, and permissioned blockchains based on project requirements. This flexibility allows users and businesses to work with digital assets under optimal conditions.

Public Blockchains for Transparency

For operations where openness and verifiability are essential, CryptoTact uses public networks such as Ethereum. For example, when tokenizing assets or issuing NFTs, the system operates through open blockchains so that every user can verify a token’s origin and authenticity without intermediaries.

Private Blockchains for Corporate Clients

When dealing with confidential data — such as in banking or insurance — CryptoTact relies on private blockchains based on Hyperledger Fabric. This enables data isolation, access control, and compliance with GDPR and other regulatory requirements.

Permissioned Blockchains for Flexibility and Security

To integrate with government projects and large enterprises, CryptoTact offers solutions built on permissioned blockchains like Corda or Quorum. This allows combining the advantages of public networks with the control and scalability required by institutional partners.

Thanks to this hybrid approach, CryptoTact meets the needs of various audiences: private investors, business partners, and government organizations alike.

Trends in Blockchain Technology Development

The blockchain industry is constantly evolving, and in 2025, several key growth trends are shaping both public and private networks. These trends set the development path for platforms like CryptoTact.

Growing Interest in Scalable Solutions

One of the main challenges for public blockchains remains scalability. Layer 2 technologies like Optimistic Rollups and zk-Rollups help speed up transactions without compromising security. Platforms aimed at mass adoption increasingly integrate these solutions to lower fees and increase network throughput.

Integration of Blockchain into the Real Economy

Blockchain is penetrating traditional industries more actively: finance, logistics, and healthcare. Examples include real estate tokenization, supply chain tracking, and the creation of electronic medical records based on distributed ledgers.

These trends call for new hybrid models — which is why CryptoTact continues to develop functionality for working in both open and controlled environments.

Rising Popularity of Permissioned Networks

Amid tightening regulations in Europe, the U.S., and Asia, permissioned blockchains are gaining traction. They provide a balance between transparency and compliance with AML/KYC rules, making them ideal for banks and large corporations.

Focus on Compatibility and Interoperability

Projects are striving to build bridges between different blockchains (cross-chain solutions). Platforms like Polkadot and Cosmos play a key role in this process. CryptoTact is also working on integrating cross-chain functionality, which expands capabilities for both users and business partners.

How to Choose a Blockchain Solution with CryptoTact

Choosing between a public, private, or permissioned blockchain depends on your project’s goals. It’s important to consider factors such as security, transparency, transaction speed, and regulatory requirements.

• If decentralization and openness are your priority — public blockchains like Ethereum or Bitcoin are the best choice. They are ideal for open applications, DeFi, and asset tokenization.
• If control and confidentiality are key — for example, in corporate environments or when handling sensitive data — private networks are the best solution.
• If you need a balance between openness and compliance — permissioned blockchains offer a smart compromise.

CryptoTact offers flexibility by combining the best features of all three types of networks:

• The ability to work simultaneously with public and permissioned blockchains;
• Integration of private channels for corporate sector solutions;
• Support for cross-chain interaction to expand business opportunities.

“Choosing the right architecture is the first step to a successful blockchain project.”

With CryptoTact, you can tailor your strategy to today’s market demands and be ready for tomorrow’s trends. Open new horizons in the digital economy with advanced tools available now.