First of all you will need to sign up an account on Technorati
After logging in, you will be navigated to Technorati homepage, just click on right hand side on top corner click on your username.
After you click on your username, it will navigate to your account, just scroll down you will find claim blog option
|Technorati Claim Blog|
After you click on claim button it will ask you to fill details in the form, just fill the form.
|Technorati Claim a New Blog|
It will show that you, thank you for submitting claim.
|Technorati Blog Claim Status|