The term free software was coined in 1985 by Richard Stallman when launching the GNU Project-a collaborative effort to create a freedom-respecting operating system-and the Free Software Foundation, or FSF.
You cannot verify a passport number. But the local police and the embassy / consulate of the country that issued the passport are normally able to do so. Most issuing authorities keep lists of cancelled passports. The Interpol also has such a list to which your local police may have access. Views.
When referring to a document number for a passport, generally that is the passport number. If it is a US Passport, that it is the 9 digit number located in the top corner of the passport info page. Other Countries have different types of numbers (usually with letters added) but most often it's in the same place.