2. Then in the opened page, click "Music Library" to enter the "Music Library" page.
3. Then click "Cool Dog Number"-"Enter" to enter the "Cool Dog Number" application page.
4. Click "Apply for Cool Dog Number", select an identity, enter an application portal, and select "From Media", as shown in the following figure.
5. Click "Agree to the Agreement"-"Next".
6. Finally, in the opened page, fill in "Personal Identity Information" and click "Submit" for official approval.