What documents can I use as proof of my children's location when applying for followers on my DTV in Ottawa?

When preparing to apply for a DTV (Dependent Temporary Visa) in Ottawa, you can use various documents to prove your children's location. Acceptable documents include utility bills (like a hydro bill) or any formal document that contains your address. Additionally, photos taken in recognizable locations, such as in front of local landmarks, may serve as informal proof.