...

• The current version of the list can be reached by placing /current/ in the local path of the URI, e.g.: http://purl.org/robotslist/current/robotlist.xml
• An overview of the previous versions can be found by going to the parent of the /current/ localpath element, e.g.: http://purl.org/robotslist/
• Previous versions of the robot list can referred to by using the preferred date instead of the /current/ local path element, e.g.: http://purl.org/robotslist/2010/05/12/robotlist.xml
•  

6. Legal boundaries

6.1. Usage of IP addresses and the protection of a 'natural person'

...