Public blockchains form one of the most critical infrastructures in the Web3 ecosystem. They serve as decentralized ledgers that manage various types of information. Much like cloud services in the Web2 era—such as Amazon Web Services, Google Cloud, and Microsoft Azure—public chains allow applications to store data and run operations across multiple platforms. Users can seamlessly migrate data or utilize several chains simultaneously based on their needs.
Despite the range of options, Ethereum has maintained a dominant position. One reason is that the current decentralized landscape primarily revolves around a single data type: digital assets, including NFTs and token swaps. However, this is set to change. New forms of data—such as identity, social connections, and personal background—will soon become integral to Web3. These data types will require new kinds of ledgers with specialized features.
Different blockchains are designed with distinct consensus mechanisms, performance attributes, and governance models. These differences enable them to support specific use cases more effectively. For instance, some chains may prioritize identity management, while others focus on high-speed transactions or decentralized storage. This specialization will pave the way for a more versatile and robust multi-chain ecosystem.
The Role of Public Blockchains in a Multi-Chain Future
Public blockchains are not one-size-fits-all solutions. Each chain is optimized for certain functions, much like various specialized tools in a toolbox. When users interact with a decentralized application, they might unknowingly use multiple blockchains throughout their journey.
Consider a user engaging with a dApp:
- They might verify their digital identity on a chain designed for decentralized identity (DID), such as Ontology.
- They could exchange assets on Ethereum or another financial-focused chain.
- They might store files or social data on a platform like Filecoin or a social-centric blockchain.
This modular approach allows each blockchain to excel in its domain, offering better security, efficiency, and user experience. The future of Web3 will likely rely on this kind of interoperability—where multiple chains work together to support complex applications.
Debunking the “Ethereum Killer” Myth
A common narrative suggests that one blockchain will eventually “overthrow” Ethereum and dominate the entire industry. This idea is not only misleading but contrary to the core principles of decentralization.
Web2 never saw a single cloud provider monopolize the entire market. Similarly, Web3—built on ideals of openness and distribution—will not crown one “winner” above all others. The market will support various chains, each serving different needs and communities.
The blockchain industry is evolving from its initial infrastructure-building phase into a new stage focused on application development. The emphasis is shifting from chain-level competition to dApp innovation and user experience. As infrastructure matures, developers can concentrate more on creating useful products rather than worrying about underlying protocols.
The Developer’s Dilemma: To Build or to Choose
Today, most decentralized applications are built using the Ethereum Virtual Machine (EVM) and Solidity. Many newer blockchains are integrating EVM compatibility to attract developers and users. This approach offers clear short-term benefits: developers can write a dApp once and deploy it across multiple chains with minimal adjustments.
EVM has become a standard because it supports a broad range of scenarios, handles diverse data types, and simplifies cross-chain migration. If all public chains support EVM, developers can focus purely on building rather than platform-specific adaptations.
Still, EVM is not the only solution. In the long run, developers may have the freedom to write applications using multiple virtual machines or languages. They might even build different parts of an application on different blockchains—for example, placing identity modules on one chain and financial transactions on another.
This approach would enhance flexibility, scalability, and resilience. Developers wouldn’t need to bet on one platform. Instead, they would select the best chain for each function, just like choosing the right tool for each task.
The Future Is Multi-Chain
The next wave of Web3 innovation will be defined by application diversity and cross-chain interoperability. Developers will be able to focus entirely on creating without being limited by a single blockchain’s capabilities.
Users will benefit from more refined, efficient, and versatile dApps. The evolution toward a multi-chain ecosystem will help Web3 grow in meaningful ways—making decentralized technology more accessible, scalable, and practical for everyday use.
Frequently Asked Questions
What is a public blockchain?
A public blockchain is a decentralized ledger that is open for anyone to participate in. It processes and records transactions across a distributed network of computers, ensuring transparency and security without a central authority.
Why is EVM so important for developers?
The Ethereum Virtual Machine allows developers to write smart contracts in Solidity and deploy them not only on Ethereum but also on other EVM-compatible chains. This reduces development time and increases the potential reach of their applications.
Will Ethereum remain the dominant blockchain?
Ethereum continues to lead in many areas, especially in DeFi and NFTs. However, the growth of alternative chains and layer-2 solutions suggests the ecosystem will become more diversified rather than winner-take-all.
What does a multi-chain future look like?
In a multi-chain future, users will interact with applications that run across several blockchains—each optimized for specific functions like identity, storage, or finance. The experience will be seamless, with interoperability protocols working in the background.
How can developers prepare for this shift?
Developers should focus on writing modular, reusable code and familiarize themselves with cross-chain development tools and standards. They should also stay updated on interoperability trends and emerging virtual machine technologies.
Is EVM compatibility necessary for all blockchains?
Not necessarily. While EVM compatibility offers short-term advantages for ecosystem growth, new virtual machines and execution environments may better serve specific use cases or offer improved performance and scalability.