> For the complete documentation index, see [llms.txt](https://ongrid-protocol.gitbook.io/ongrid-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ongrid-protocol.gitbook.io/ongrid-protocol/technical-architecture.md).

# Technical Architecture

**Architecture Overview**

The Ongrid Protocol architecture consists of four layers: Physical Infrastructure (DePIN Devices), Decentralized Network, Blockchain and Storage (Including Smart Contracts), and Application Layer. Smart contracts play a pivotal role in the Blockchain and Storage Layer, automating key processes like investment management, carbon credit issuance, and trading.