> For the complete documentation index, see [llms.txt](https://docs.wetez.io/wetez/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wetez.io/wetez/developer/appchain/substrate-independent-chain.md).

# Substrate Independent Chain

[Substrate](https://substrate.io/)-based blockchain networks have the choice of either operating as a solo chain, a solo chain with a bridge, or to integrate as a parachain. Integrating as a parachain enables independent Substrate-based blockchains to gain interoperability with the other independent blockchains. The secret sauce of parachain interoperability lies in XCMP (Cross-Chain Message Passing). XCMP enables parachains to share trusted logic, for example, transferring tokens between networks, without any additional trust assumptions!

## Demo chain

TBD