### 使用步驟
{% stepper %}
{% step %} 訂閱 **BlockRazor Sequencer Feed**
{% endstep %}
{% step %}
**在portal獲取auth，將其作為URI拼接於wss url**
wss\://us.robinhood-feeder.blockrazor.io/ws/ultra/{authToken}
{% endstep %}
{% step %}
**停止正在運行的 Robinhood Chain 節點**
具體命令取決於當前使用的部署方式，例如 Docker、Docker Compose 或 systemd。停止前建議確認節點數據目錄已正確掛載，避免重新啟動後丟失已有同步數據。
{% endstep %}
{% step %}
**替換Feed URL**
在節點啟動命令中找到以下配置：
```bash
--node.feed.input.url=wss://feed.mainnet.chain.robinhood.com
```
添加 BlockRazor Sequencer Feed：
```bash
--node.feed.input.url=wss://feed.mainnet.chain.robinhood.com
--node.feed.input.url=wss://us.robinhood-feeder.blockrazor.io/ws/{authToken}
```
完整的主網啟動示例如下：
```bash
DATA_DIR="$HOME/rh/robinhood-nitro-data"
docker run --rm -it \
-v "$DATA_DIR":/home/nitro/.arbitrum \
-v "$HOME/rh/config":/home/nitro/config \
-p 8547:8547 \
-p 8548:8548 \
offchainlabs/nitro-node:v3.11.2-3599aca \
--chain.info-files=/home/nitro/config/robinhood-chain-info.json \
--parent-chain.connection.url= \
--parent-chain.blob-client.beacon-url= \
--init.genesis-json-file=/home/nitro/config/robinhood-genesis.json \
--node.feed.input.url=wss:// \
--http.addr=0.0.0.0 \
--http.port=8547 \
--http.api=net,web3,eth
```
{% endstep %}
{% step %}
**重新啟動節點**
保存配置後重新啟動節點，節點將通過 BlockRazor Sequencer Feed 接收 Robinhood Sequencer 數據。
查看節點日志，確認：
* BlockRazor Feed 連接成功
* 沒有持續重連、超時或 WebSocket 錯誤
* 節點持續接收最新 Sequencer 數據
* 節點高度正常跟進 Robinhood Chain
{% endstep %}
{% step %}
**驗證節點狀態**
檢查同步狀態：
```bash
curl -d '{"id":0,"jsonrpc":"2.0","method":"eth_syncing","params":[]}' \
-H "Content-Type: application/json" \
http://localhost:8547
```
完全同步後，`eth_syncing` 應返回：
```bash
false
```
{% endstep %}
{% endstepper %}
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.blockrazor.io/tc/streams/node-stream/robinhood-chain/sequencer-feed-ultra.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.