> For the complete documentation index, see [llms.txt](https://tutorial.sign.valid3.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tutorial.sign.valid3.id/valid-sign-tutorial.md). # Valid Sign Tutorial ## Sign When you want to sign a message you sent to prove that the message originated from you, you can take the following approach. ### 1. Post your Text For example, you want to post one message with a valid signature on Twitter.

### 2. Login Valid Sign Platform via zkID Wallet You need to login to signature this message. Here is the link of Valid Sign Platform:

### 3. Paste the message and sign via zkID Wallet

### 4. Copy the signature information and reply to your original post to make sure others can see your signature

## Verify If you saw 0xLenhart's post, you can verify his signature as follows. ### 1. Login Valid Sign Platform and paste the signature information Here is the link of Valid Sign Platform:

### 2. Copy the original message and paste it

### 3. Verify it to get the result

You can also see the cross verification results at the bottom of the page