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

# Labels

A "Label" in ChainArgos is a wallet or smart contract tag that seeks to identify the individuals, companies, organization, and/or entities operating that wallet or smart contract address. 

"Labels" can be divided into two major categories:

* [Programmatic Labels](/documentation/labels/programmatic-labels.md); and 
* [Sourced Labels](https://docs.chainargos.com/documentation/info/label/sourced-tags).

Addresses typically have more than one "Label" associated with them, and each "Label" is separated by two semicolons:

```
;;
```

Occasionally, a "Label" where a higher level of precision may be lacking, will be labeled with question marks. 

A single question mark indicates that there are some doubts as to the precision of the address "Label." 

```
? 
```

More speculative address "Labels" are indicated by a series of three question marks. 

```
???
```