# Nodes Bootstrap

Run Unibase DA nodes: **Stream** (encode), **Storage** (store + prove), **Validator** (watch + challenge).

### Node Types

| Type          | Role                              | Reward                       |
| ------------- | --------------------------------- | ---------------------------- |
| **Stream**    | Encode data as configured         | Submit encode proof to chain |
| **Storage**   | Store encoded data; submit proofs | Epoch proof rewards          |
| **Validator** | Watch proofs; challenge if wrong  | Challenge rewards            |

### Download

[Unibase DA SDK](https://github.com/unibaseio/unibase-da-sdk)

### Environment

```bash
export CHAIN_TYPE=opbnb-testnet  # or op-sepolia, bnb-testnet
```

### Quick Links

* [Storage Node](/unibase-docs/unibase-da/nodes-bootstrap/storage-node.md)
* [Validator Node](/unibase-docs/unibase-da/nodes-bootstrap/validator-node.md)
* [Stream Node](/unibase-docs/unibase-da/nodes-bootstrap/stream-node.md)
* [Docker](/unibase-docs/unibase-da/nodes-bootstrap/docker.md)

### Gateway Server

* <https://gateway.membase.unibase.com/>

### Explorer

[testnet.explorer.unibase.com](https://www.testnet.explorer.unibase.com)


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