To claim your blog on Technorati.com, you need to do following steps:
1) Create an account at Technorati.com and sign in.
2) Click on Blogs.
3) Enter your blog at the bottom of this page under the label Claim Your Blog.
4) If you use OpenID, enter it in the window and finish the process.
5) If you do not use OpenID, you will get a code. Copy this code.
6) Add this code in the text widget of your blog.
7) When the code si published, complete the claim.
When the claim is complete, you will be given different codes for different symbols that you can add in any post as a button. This button will provide an option for your visitors to make the post favorite in Technorati.