In the crypto world, isolated blockchains can no longer meet the diverse application needs. As a result, cross-chain has become a popular direction in Web3, and Polkadot (DOT) is a representative project in this field. So, what is DOT? Let’s take a closer look.

Why is a cross-chain network needed?

Current mainstream blockchains such as Ethereum, Bitcoin, and Solana are closed systems, making it difficult to achieve seamless circulation of data and assets. This results in developers being restricted to a single platform, leading to fragmented user experiences and wasted resources.

Polkadot’s solution

Polkadot proposes a structure of relay chains + parachains, allowing interoperability between different chains through a shared security mechanism. Its design goal is to enable every future chain to be “plugged in” to the Polkadot network, standardized for connection like a USB port.

The core advantage of Polkadot is:

• Support multi-chain concurrent operation;
• Ensure security through the validator mechanism;
• Open architecture supports future technology expansion;
• Transfer funds and transmit information between chains without trust.

The economic model of the DOT token

DOT is not only used for trading, but also has three core functions:

• Participation in governance: On-chain upgrades and parameter adjustments require voting decisions by DOT holders;
• Staking Security: Through the NPoS consensus mechanism, DOT is used to guarantee node behavior;
• Support ecological expansion: Each parachain launch requires the staking of DOT, forming a resource scarcity mechanism.

In addition, the inflation rate of DOT is designed to be around 10% per year, used to incentivize validators and proposal participants, ensuring the long-term operation of the network.

The difference between Polkadot and other projects

Compared to multi-chain structures like Cosmos and Avalanche, Polkadot emphasizes the following points:

• Unified security mechanism: No need to maintain security separately for each chain;
• Stronger governance system: Adopting a bicameral governance model that balances developers and the community;
• Strong technological foresight: It may integrate innovative technologies such as zk technology and RISC-V virtual machines in the future.

Latest news: ecological progress and price performance

In the first half of 2025, Polkadot will launch several important updates, including:

• Launch the 12th round of parallel chain auctions;
• Establish bridges with multiple Layer2 projects;
• The Web3 Foundation increases its investment in AI+DePIN projects.

The current price of DOT is approximately $4, and multiple DeFi and GameFi projects are turning to Polkadot in search of higher performance and compliance possibilities.

Figure:https://www.gate.com/trade/DOT_USDT

Summary:

What is DOT? It is the bridge connecting the multi-chain world and serves as the core fuel for the Polkadot network. As the Web3 ecosystem becomes increasingly rich, DOT, as a convergence point of technology and value, has long-term potential worth paying attention to.