Polygon
EVM-compatible proof-of-stake chain anchored to Ethereum by checkpoints, with POL as the gas and staking token.
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Polygon key facts
| Category | Layer 1 blockchain |
|---|---|
| Chains | Polygon PoS |
| Platforms | Web, API |
| Token | POL (gas and staking; migrating from MATIC) |
| Open source | Yes, LGPL-3.0 (github.com/0xPolygon/bor) |
| Chains | Polygon Chain (chain ID 137), anchored to Ethereum |
What is Polygon?
Polygon Chain is an EVM-compatible proof-of-stake blockchain anchored to Ethereum through periodic checkpoints. Heimdall validators handle consensus and Bor nodes produce blocks. Milestones give deterministic finality in 2 to 5 seconds. POL replaces MATIC as the gas and staking token.
Polygon pros and cons
- Deterministic finality in 2 to 5 seconds
- Existing Solidity contracts deploy with no changes
- Bor client public on GitHub under LGPL-3.0
- Not a rollup: security rests on its own PoS validators
- Each span has a single block producer from a small validator pool
- Withdrawals to Ethereum need a checkpoint first
Polygon FAQ
What is Polygon?
Polygon Chain is an EVM-compatible proof-of-stake blockchain anchored to Ethereum through periodic checkpoints. Heimdall validators handle consensus and Bor nodes produce blocks. Milestones give deterministic finality in 2 to 5 seconds. POL replaces MATIC as the gas and staking token.
Which chains does Polygon support?
Polygon PoS.
Sources
How this page works
Sources: Polygon: official site, Polygon: Building on Polygon, Polygon: Bor GitHub repository. Data as of Sep 26, 2026.
Not affiliated with any project listed. Educational content, not financial advice.