Do you know that when we buy our own post then we only get publisher payment which means the owner payment is also send as a publisher payment for us.I can explain it a little bit.When we are only publisher snd owner is someone else of our post,then on 2$ post income,we get 1 publisher adserver but when we own our own post then on 1$ post income,we get and adserver and on 2$ post income we get 2 adservers.So we can say that one of them is for owning our posts which is also named as publisher payment👍