> For the complete documentation index, see [llms.txt](https://docs.coming.chat/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coming.chat/english-manual/how-to-register-5-digit-cid.md).

# How to register 5-digit CID

***Connect the ChainX network in MetaMask*****；**

**Network Name:** chainx-mainnet

**New RPC URL**: <https://mainnet.chainx.org/rpc>

**Chain ID**: 1501

**Currency Symbol:** PCX

**Block Explorer URL:** [https://evm.chainx.org](https://evm.chainx.org/)

***Open SoSwap*** [***https://www.soswap.finance/#/swap***](https://www.soswap.finance/#/swap) ***and switch to the ChainX network***

![](/files/0boEaUMe2REf3Z58t9ei)

Transfer PCX from Funding Account to Trading Account in SoSwap

***Click the CID registration link*** [***https://appcid.coming.chat/***](https://appcid.coming.chat/)

Enter the 5 digits you want and check for availability. The result would be ‘Available’ or ‘Unavailable’ as shown in the image

![](/files/Otz8WnvkSnSk6m4t8Yy8)

***Click the CID that is ‘Available’ and you would be redirected to the next page as shown below***

![](/files/spVDnw0zi4s1Gc8WlL36)

Increase or decrease the rental tenure by using the (+) or (-) sign and clicking ‘Request to Register

***Registering a name requires you to complete 3 steps***

1\) Request to register

Your wallet will open and you will be asked to confirm the first of two transactions required to register. If the second transaction is not processed within 1 day of the first, you need to start again from step 1.

2\) Wait for 1 minute

A waiting period is necessary to ensure that others are not trying to register the same CID and to protect you after your request.

3\) Complete Registration

Click ‘Register’ and your wallet will open again. You won’t know if you’ve got the CID until the second deal is confirmed.

*Click the User Icon to view your 5-digit registered CID as shown below*

![](/files/GNOB4KhJaXKjrmK3Ov5J)