1. The most common symbol used is the hash sign , or #. 2. The hash sign introduces a comment. 3. URIs are delimited with hash sign . 4. Please preface all endorsements with a hash sign ( # ) and remember to sign all endorsements and other comments. 5. If they have voted after another arbitrator, you can add a colon after the hash sign ,'# :' 6. The hash sign # for hex triplets, percent % and degree ?symbols must not be entered as they are included automatically. 7. Avoid using the symbol ( known as the number sign, hash sign , or pound sign ) when referring to numbers or rankings. 8. By default, the template returns a " 1 " if it starts with a hash sign , or a " 0 " otherwise. 9. "Linking to sections : A hash sign ( # ) followed by the appropriate heading will lead to a relevant part of a page. 10. "Hash sign " is found in South Africans writings from the late 1960s, and from other non-North-American sources in the 1970s.