> For the complete documentation index, see [llms.txt](https://docs.metaid.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.metaid.io/metaid-specification/examples.md).

# Examples

Assuming the address: 19Up4xZ4Y6CBhUcXSQZdo7tHaGNYFn7EUj, according to the protocol, its inherent MetaID is: 8a15022dd74648c5158d237f41e544e6097b3f27dcc85788a4b7470c063ed33c

<figure><img src="/files/8NhpK8r8sJox2SF2B0Up" alt=""><figcaption></figcaption></figure>

According to the agreement, the following paths are reserved

* **`/info`**: Stores user's basic information such as username and avatar.
* **`/protocols`**: Used for application protocol operations.
* **`/file`**: For file data storage.
* **`/ft`**: For storing user's fungible token (FT) asset actions.
* **`/nft`**: For storing user's non-fungible token (NFT) asset actions.
* **`/follow`**: Stores user's follow list data.

#### 2. Create Username and Avatar

Users can set their username and avatar by constructing **`PIN`** transactions:

1. **Set Username**: User sets their **`name`** to **`Alice`** with the **`path`** as **`/info/name`**.
2. **Set Avatar**: User sets a specific avatar with the **`path`** as **`/info/avatar`**.

Both paths are under the **`/info`** directory, indicating they are part of the user's personal information.

**Set Username**:

```jsx
OP_FALSE
OP_IF
	metaid  
	create     
	/info/name 
	0          
	OP_0       
	OP_0      
	Alice      
OP_ENDIF
```

**Set Avatar**:

```jsx
OP_FALSE
OP_IF
	metaid            
	create           
	/info/avatar      
	0                 
	OP_0             
	image/jpg;binary  
	<pfp data>        
OP_ENDIF
```

<figure><img src="/files/8CK1o5jONb8NucK1Ir3g" alt=""><figcaption></figcaption></figure>

### Submitting SimpleBuzz Protocol

Assume a user wants to post a **`buzz`**, they need to create and submit a new **`PIN`** in the **`/protocols/simplebuzz`** section.

This adds the **`buzz`** data to the **`/protocols/simplebuzz`** path, indicating it is a record under the user's SimpleBuzz protocol.

```jsx
OP_FALSE
OP_IF
	metaid                           
	create                           
	/protocols/simplebuzz            
	0                                
	0                               
	application/json;utf-8                
	{"content":"Hello bitcoin world!","contentType":"text/plain","createTime":1710741614716,"quoteTx":""}     
OP_ENDIF
```

<figure><img src="/files/4t8Y0DzsRSIbHIMmOfrh" alt=""><figcaption></figcaption></figure>

### Modification

When performing a **`modify`** operation, use the **`@`** symbol to point to the **`PIN`** to be modified. For example, to modify a specific **`PIN`**, use **`@{PINID}`**.

```jsx
OP_FALSE
OP_IF
	metaid                           
	modify                          
	@{pinid}                       
	0                               
	0                             
	application/json;utf-8               
	{"content":"Hello bitcoin world!!!!!!!","contentType":"text/plain","createTime":1710741614716,"quoteTx":""}     
OP_ENDIF
```

### Revocation

When performing a **`revoke`** operation, use the **`@`** symbol to point to the **`PIN`** to be revoked. For example, to revoke a specific **`PIN`**, use **`@{PINID}`**.

```jsx
OP_FALSE
OP_IF
	metaid                        
	revoke                           
	@{pinid}                           
	OP_0                                
	OP_0                             
	OP_0             
	OP_0
OP_ENDIF
```