Selfsame

The selfsame computer program was used to create both of these designs.

The selfsame movie was playing at the theater that we saw last week.

The selfsame structure was used in the construction of both buildings.

The selfsame technique was used to solve the math problem as in the previous example.

The selfsame security measure was taken in response to the security breach that occurred last year.

This is the selfsame recipe I used to bake that cake.