Evidence of title is the means by which the ownership of land is satisfactorily demonstrated within a given jurisdiction. There are four kinds of evidence of title: abstract and opinion, certificate of title, title insurance and Torrens certificate. The certificate of title is used extensively in the Eastern states, and some Southern states. In urban centers in a great many sections of the country, title insurance occupies a dominant position in real estate transactions. In farm areas the abstract and opinion method is common. To a great extent, the acceptability of a particular kind of evidence of title depends on the local custom.