> ## Documentation Index
> Fetch the complete documentation index at: https://docs.polygon.technology/llms.txt
> Use this file to discover all available pages before exploring further.

# PoS

> EVM-compatible Proof-of-Stake sidechain for Ethereum

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          CONTEXT
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          Polygon Chain
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          Polygon Chain is an EVM-compatible Proof-of-Stake sidechain for Ethereum,
          with high throughput and low transaction costs.
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              Get started with PoS
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              Start building on Polygon Chain.
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            →
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              Run a PoS node
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              Set up and operate full nodes and validator nodes.
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            →
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              PoS architecture
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              Understand Heimdall and Bor layers, checkpoints, and state sync.
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            →
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