# Overview

By [Untitled](https://paragraph.com/@0xc0f408ce2916f25bc5f5010d4b555afa77061108) · 2021-12-09

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Overview
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Polkadot, with its native DOT coin, is a blockchain ecosystem focused on interoperability and scalability. Polkadot has a main blockchain called the Relay Chain. Other compatible chains in the ecosystem, called parachains, function parallel to the Relay Chain.

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*Originally published on [Untitled](https://paragraph.com/@0xc0f408ce2916f25bc5f5010d4b555afa77061108/overview)*