# Chain 0003

**Config chain 0003 in blockchain.json**

```
nano ~/.viper/config/blockchains.json
```

<figure><img src="https://1058773689-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoOjq4HjzvH3RIAun6SBN%2Fuploads%2F1tevc85QvGAEPKr4W2uV%2FA%CC%89nh%20ma%CC%80n%20hi%CC%80nh%202024-06-13%20lu%CC%81c%2011.49.06.png?alt=media&#x26;token=d36e59e3-013c-4355-8c19-b0588a0687f3" alt=""><figcaption></figcaption></figure>

**Stake with chain 003**

```
viper servicers stake self <addr> <amt> 0001,0002,0003 $GEO-ID https://rpc-testnet.suiscan.xyz:443 testnet
```

**Waiting 3 block and check again:**

```
viper servicers query servicer <wallet-address>
```

<figure><img src="https://1058773689-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FoOjq4HjzvH3RIAun6SBN%2Fuploads%2FTEuPtmZFOrxHz4pfmiA6%2FA%CC%89nh%20ma%CC%80n%20hi%CC%80nh%202024-06-13%20lu%CC%81c%2012.05.50.png?alt=media&#x26;token=01069532-5bdc-4d54-a12c-d65c29437663" alt=""><figcaption></figcaption></figure>
