Defination: The owner (registerant), technical and billing contact information along with domain name servers, and registration and expiring date are contained in domain whois. For these top-level domains, the results of a successful will have all these values in the whois record.
Who maintains the whois records:
In the Shared Registration System model, registrars (nominated by icann) are solely responsible for the domain whois information.
What happens if whois information is inaccurate:
This is registrant responsibiblity to provide acurate whois data. Domain names with inaccurate Whois information can cause cancellation of the domain name registration.