> For the complete documentation index, see [llms.txt](https://docs.sat20.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sat20.org/english/run-the-network-nodes-and-infrastructure/mining-node.md).

# Mining Node

Mining Nodes are responsible for SatoshiNet block production, transaction ordering, and contract execution. They are the base role for network execution capability and fee flow.

## Questions This Page Must Answer

1. What a Mining Node does.
2. How it participates in block production.
3. How block producers are selected.
4. What GAS staking does.
5. What actual network fees a node can receive.
6. Server, bandwidth, uptime, and security requirements.
7. How to join testnet.
8. How to upgrade and exit.
9. Which penalty rules are still under design.

## Current Boundary

Node fees come from actual network service, not from fixed-yield products. Full staking thresholds, penalty rules, unstaking time, and admission flows remain under design.

**Page Status: Design in Progress**