# 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.

<figure><img src="/files/Bp8PsS3MSFg3aHjox0rk" alt=""><figcaption></figcaption></figure>

### 2. Login Valid Sign Platform via zkID Wallet

You need to login to signature this message. Here is the link of Valid Sign Platform: <https://sign.valid3.id/>

<figure><img src="/files/DpJfIg5utrEigl0fxbOC" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/8ebHGyNZuB8SCZt9A8aE" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/htJXdrXDvlUoTTOCEFE2" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/ns5JhZPPiE2OoYHVqHwG" alt=""><figcaption></figcaption></figure>

## 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: <https://sign.valid3.id>

<figure><img src="/files/11LZDZBXzVGUdjH6Rru6" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/aoHeqxYUL5P5rhxDnnfF" alt=""><figcaption></figcaption></figure>

### 3. Verify it to get the result

<figure><img src="/files/vRQY8gQWMmosuDxckuoK" alt=""><figcaption></figcaption></figure>

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

<figure><img src="/files/UpRWPgzbhsMa3pILJJ16" alt=""><figcaption></figcaption></figure>


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```
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```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.
