What Is Polygon (MATIC)? How to Use Ethereum Layer 2
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Overview
Polygon (formerly Matic Network) is one of Ethereum's most important scaling solutions. The project was founded in 2017 by Jaynti Kanani, Sandeep Nailwal, and Anurag Arjun. It initially focused on Plasma sidechain technology and has since evolved into a comprehensive platform encompassing multiple scaling approaches.
Polygon's core goal is to address Ethereum's "blockchain trilemma" — improving scalability while maintaining security and decentralization. Its native token has migrated from MATIC to POL, serving as the network's Gas token and staking asset.
Technical Architecture Evolution
The Matic Network Era (2017-2021)
The project launched under the Matic Network name, using Plasma technology to provide Ethereum with a sidechain scaling solution. Plasma processes large volumes of transactions off-chain and submits only the final state to the Ethereum mainnet, achieving significant improvements in transaction speed and cost.
Polygon PoS Chain
Polygon PoS is the most widely used Polygon network, with the following technical characteristics:
- Consensus mechanism: PoS + Checkpoint mechanism
- Number of validators: Approximately 100
- Block time: Approximately 2 seconds
- Transaction fees: Typically below $0.01
- EVM compatible: Fully compatible with the Ethereum toolchain
The PoS chain inherits Ethereum's security by periodically submitting checkpoints (a summary of all blocks over a period of time) to the Ethereum mainnet. Strictly speaking, however, Polygon PoS is a "Commit Chain" or sidechain rather than a true Layer 2, since its security is not fully guaranteed by Ethereum.
The Polygon 2.0 Vision
In 2023, Polygon announced the Polygon 2.0 roadmap, aiming to build a "value layer for the internet." Core changes include:
- Multi-chain architecture: A unified network composed of multiple ZK-powered L2 chains
- Shared security: All Polygon chains share Ethereum's security
- Unified liquidity: Near-instant cross-chain asset transfers
- POL token: Upgrade from MATIC to POL, supporting multi-chain staking
Polygon zkEVM
Polygon zkEVM is Polygon's most important technical product and one of the first zkEVM implementations deployed in production in the industry:
- Type: Type 2 zkEVM (highly EVM-compatible, with minor differences)
- Security model: True L2 Rollup; security guaranteed by Ethereum
- Zero-knowledge proofs: Uses a combination of ZK-STARK and ZK-SNARK
- EVM equivalence: The vast majority of Ethereum smart contracts can be deployed directly
The core advantage of zkEVM: after transactions are executed off-chain, zero-knowledge proofs are used to prove the correctness of computation to Ethereum. This maintains Ethereum-level security while achieving higher throughput and lower fees.
Polygon CDK
The Polygon Chain Development Kit (CDK) allows developers to use Polygon's tech stack to build customized ZK-powered L2 chains. Multiple well-known projects have built dedicated chains using CDK, including Immutable zkEVM (gaming) and Astar zkEVM.
The MATIC to POL Token Migration
Background
In September 2023, the Polygon community approved the proposal to upgrade MATIC to POL. POL is designed as a "hyperproductive token" capable of being staked simultaneously across multiple Polygon chains to earn rewards.
Key Changes
| Feature | MATIC | POL |
|---|---|---|
| Use | Single-chain staking and Gas | Multi-chain staking and Gas |
| Inflation | None (fully released) | 2% annually (1% to validators, 1% to treasury) |
| Governance | Limited | Comprehensive on-chain governance |
Migration Mechanism
The MATIC to POL migration takes place at a 1:1 ratio. On the Polygon PoS chain, the migration happens automatically; on the Ethereum mainnet, users need to complete it manually through the migration contract.
Ecosystem
DeFi
The Polygon PoS chain has a rich DeFi ecosystem:
- QuickSwap: The largest native DEX
- Aave: The leading lending protocol; Polygon is one of its most active deployments
- Uniswap: Deployed on Polygon
- Balancer: A liquidity protocol
- Curve: Stablecoin trading
Enterprise Partnerships
Polygon stands out for its enterprise-level adoption:
- Starbucks: Odyssey loyalty program (built on Polygon)
- Nike: The .SWOOSH digital platform
- Reddit: Community points system (now discontinued)
- Disney: Accelerator program participant
- JP Morgan: DeFi pilot on Polygon
Gaming
Polygon is one of the most popular deployment platforms in Web3 gaming:
- Immutable zkEVM: A gaming-specific chain built on Polygon CDK
- The Sandbox
- A large number of smaller games and GameFi projects
NFTs
Polygon has become a popular choice for NFT minting and trading due to its low Gas fees, and many major NFT projects have chosen to launch on Polygon.
Competitive Landscape
Comparison with Other L2s
Polygon faces intense competition in the L2 space:
- Arbitrum: Currently the L2 with the highest TVL; uses Optimistic Rollup technology
- Optimism: Creator of the OP Stack; Base and other chains are built on it
- zkSync: Another major zkEVM implementation
- StarkNet: A ZK Rollup using STARK proofs
Polygon's differentiation advantages: its existing PoS chain provides a large established user base and ecosystem; zkEVM and CDK are technically at the frontier; and it has the richest enterprise partnership relationships in the L2 space.
Investment Value Analysis
Core Strengths
- Central role in Ethereum scaling: As the earliest and most active Ethereum scaling solution
- ZK technology leadership: zkEVM and CDK represent the frontier of L2 technology
- Enterprise adoption: Extensive Fortune 500 company partnerships
- Ecosystem maturity: A rich DeFi and application ecosystem on the PoS chain
- Polygon 2.0 strategy: An ambitious multi-chain architecture and shared security vision
Key Risks
- Intensifying competition: The rapid growth of Arbitrum, Optimism, and other L2s is diverting users and developers
- PoS chain security: The PoS chain is not a true L2 Rollup; its security depends on its own validator set
- Token migration risk: The POL inflation model has changed the original economic model
- Technical complexity: Implementing and maintaining a multi-chain architecture is challenging
- Ethereum mainnet improvements: If Ethereum's own performance improves significantly, demand for L2s could weaken
How to Buy POL/MATIC
You can purchase Polygon tokens by registering a trading account through our link. After purchasing, you can bridge to the Polygon PoS chain to experience low-fee DeFi and NFT interactions.
Summary
Polygon has evolved from a simple Plasma sidechain into a comprehensive scaling platform encompassing the PoS chain, zkEVM, and CDK, demonstrating strong technical evolution capability and strategic vision. In the core track of Ethereum scaling, Polygon maintains its leading position through a mature ecosystem, rich enterprise partnerships, and frontier ZK technology. The POL token upgrade provides the economic foundation for the long-term development of its multi-chain architecture.
Android users can download APK directly without VPN.
Android users can download APK directly without VPN.