Claim Self Hosted Wordpress Blog

On helf hosted wordpress blog , "Meta-tag-manager" plugin is useful for adding the Alexa meta tag to wordpress blogs :
http://wordpress.org/extend/plugins/meta-tag-manager/
Install this plugin and then add the Alexa verification ID as a meta tag .

Now your site should be verified . You can change site info , contact details if you wish by login on Alexa . . . . . . .