Using
There are three primary uses for Ottgaz at present.
Reference and disambiguation
Ottgaz provides persistent unique identifiers for Ottoman places. This is especially helpful when placenames are ambiguous, for instance when the same name is used for several places. For example, there are dozens of Ottoman and Turkish places named Yenice. Although we possess various lists of these places (English wikipedia, Turkish wikipedia), we have no consistent system for disambiguating them. By adding an Ottgaz Qid to a written text, you can specify exactly which place you are discussing. "He was sent to Yenice, south of Bursa (Q7472)."