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In today's rapid development of blockchain technology, <a href="/ja/price/polkadot-dot" target="_blank" class="blog_inner_link">Polkadot</a> (DOT) has become a star project in the cryptocurrency field with its unique cross-chain interoperability and scalability. As the core token of the <a href="/ja/price/polkadot-dot" target="_blank" class="blog_inner_link">Polkadot</a> eco, DOT is not only a tool for governance and staking, but also provides unlimited possibilities for the future of decentralized applications. This article will delve into the features, uses, market performance, and investment potential of Polkadot (DOT), helping you seize the opportunities of the interconnected blockchain era.

## What is Polkadot (DOT)?

[DOT](/price/polkadot-dot) Polkadot is an open-source blockchain protocol founded by Dr. Gavin Wood, co-founder of <a href="/ja/price/ethereum-eth" target="_blank" class="blog_inner_link">Ethereum</a>, aiming to achieve seamless communication between different blockchains through cross-chain interoperability. The core architecture of Polkadot consists of a Relay Chain, Parachains, and Bridges, allowing independent blockchains (such as <a href="/ja/price/ethereum-eth" target="_blank" class="blog_inner_link">Ethereum</a>, <a href="/ja/price/bitcoin-btc" target="_blank" class="blog_inner_link">Bitcoin</a>, Cosmos) to share data and functionality.

DOT is [DOT](/price/polkadot-dot) The native token of the network plays the following key roles:

- Governance: DOT holders can participate in the governance of the Polkadot network, voting on protocol upgrades and technical parameters.
- Staking: Users support network security by staking DOT and receive staking rewards.
- Parallel chain slot auction: Projects bid for the use of DOT in Polkadot's parallel chain slot auction to enhance eco expansion.
- Transaction fees: DOT is used to pay for transactions and operational costs on the network.

According to CoinGecko data, as of April 2025, the total supply of DOT is approximately 1.48 billion, ranking among the top 15 cryptocurrencies globally in terms of market value, demonstrating its strong market position.

## The core advantage of Polkadot (DOT)

### 1. Cross-chain interoperability

The biggest highlight of Polkadot is its
**Cross-Chain Message Passing (XCMP)** Mechanism that allows secure and efficient data and asset sharing between different blockchains. This interoperability solves the blockchain silo problem and lays the foundation for the <a href="/ja/web3" target="_blank" class="blog_inner_link">Web3</a> eco. For example, Polkadot can connect Ethereum's smart contracts and <a href="/ja/price/bitcoin-btc" target="_blank" class="blog_inner_link">Bitcoin</a>'s payment network, creating a brand new decentralized application (DApp) scenario.

### 2. Scalable parallel chain architecture

Polkadot's relay chain is responsible for network security, while the parachains support specific-purpose blockchains (such as DeFi, NFT, games). Through parachain slot auctions, projects can lease Polkadot's computing resources, significantly improving the network's scalability. As of 2025, Polkadot has supported dozens of parachains, including Acala, <a href="/ja/price/moonbeam-glmr" target="_blank" class="blog_inner_link">Moonbeam</a>, and <a href="/ja/price/kusama-ksm" target="_blank" class="blog_inner_link">Kusama</a>.

### 3. High performance and low cost

Polkadot adopts
**Nominated Proof of Stake (NPoS)** The mechanism, combined with sharding technology, achieves high throughput and low transaction costs. Compared to the high Gas fees of Ethereum, Polkadot has lower transaction costs, making it suitable for large-scale DApp deployment.

### 4. Strong community and eco

Polkadot has an active developer community and a rich eco. According to X's post, Polkadot's parachains (such as <a href="/ja/price/moonbeam-glmr" target="_blank" class="blog_inner_link">Moonbeam</a> and <a href="/ja/price/astar-astr" target="_blank" class="blog_inner_link">Astar</a>) are attracting a large number of DeFi, NFT, and GameFi projects. The support from the <a href="/ja/web3" target="_blank" class="blog_inner_link">Web3</a> Foundation and Parity Technologies further drives the eco development.

### 5. Decentralized Governance

Polkadot's on-chain governance model gives DOT holders the power to make decisions, allowing users to vote on protocol upgrades, fund allocations, and parachain management. This transparent governance mechanism enhances the network's decentralization.

## The main usage of Polkadot (DOT)

DOT tokens have various functions in the Polkadot eco:

- Staking: Users can stake DOT to validators or nominators, participate in network consensus, and earn annualized returns (currently around 10-15%, depending on network conditions).
- Parallel chain slot auction: DOT can be used to support project participation in parallel chain auctions, helping projects obtain slots through the 'Crowdloan' mechanism.
- Governance Voting: Users holding DOT can propose or vote on the future development of the network, such as protocol upgrades or fund utilization.
- Payment fees: DOT is used to pay for transaction fees on the relay chain and cross-chain message passing costs.
- Eco Participation: Many Polkadot parachain projects (such as Acala's aUSD stablecoin) accept DOT as payment or collateral assets.

## Why invest in Polkadot (DOT)?

1. [Web3](/web3) Leader in Vision
   The goal of Polkadot is to build a decentralized Internet (Web3) that promotes the free <a href="/ja/price/flow-flow" target="_blank" class="blog_inner_link">flow</a> of data and value by connecting different blockchains. As [Web3](/web3) With the popularization of applications, the importance of Polkadot will be further highlighted.

2. The eco is expanding rapidly
   Polkadot's parallel chain eco is developing rapidly, covering multiple fields such as DeFi (Acala), NFT (Unique Network), cross-chain bridges (Snowbridge), etc. According to X post, Polkadot's eco projects have attracted a large amount of funds and developers.

3. High-yield staking opportunities
   Polkadot's staking mechanism provides investors with a stable source of passive income. The annualized return rate is between 10-15%, which is much higher than traditional financial products.

4. Long-term growth potential
   Although [DOT Price](/price/polkadot-dot) Currently below its all-time high, but its cross-chain technology and eco expansion provide long-term value support. Analysts predict that with the increase of parachains and the adoption of Web3, DOT is expected to return to its all-time high.


## The risk of investing in Polkadot (DOT)

Despite the attractiveness of Polkadot (DOT), investment still needs to be cautious:

- Market Volatility: <a href="/ja/price" target="_blank" class="blog_inner_link">Cryptocurrency prices</a> are volatile, and historical data for DOT indicates a significant potential price drop.
- Competitive pressure: Polkadot faces competition from Cosmos, <a href="/ja/price/cardano-ada" target="_blank" class="blog_inner_link">Cardano</a>, and Layer 2 solutions, which may affect its market share.
- Technical risk: Although Polkadot's technology has been extensively tested, vulnerabilities in smart contracts or cross-chain bridges may lead to financial losses.
- Regulatory Uncertainty: Global regulatory policies on cryptocurrency may affect the development of Polkadot.

Investors are advised to conduct thorough research before investing, only invest funds that can afford to lose, and closely monitor Polkadot's official announcements and community dynamics.

As a pioneer in cross-chain interoperability, Polkadot (DOT) is redefining the future of blockchain. With its innovative parallel chain architecture, strong eco, and high-yield staking mechanism, DOT provides investors with a unique opportunity to participate in the Web3 revolution. Whether for long-term holding or eco governance participation, Polkadot is worth paying close attention to.

<div class="blog-details-info">
 <div>Author: Rooick Z., Gate.io Researcher
<div class="info-tips">*This article represents only the author&#39;s point of view and does not constitute any trading advice. Investment carries risks, so decisions should be made carefully.
<div>*This content is original and the copyright belongs to Gate.io. If you need to reprint, please indicate the author and source, otherwise legal liabilities will be pursued.
</div><p></p>
</div></div></div>

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Polkadot (DOT): The Core Token Connecting the Future of Blockchain