Abstract: A servo head capable of verifying at least one timing based pattern printed on media is provided. The servo head includes a magnetic structure having at least one magnetic element arranged and configured to form at least one magnetic gap parallel to the timing based pattern. In one embodiment, the magnetic element is arranged and configured to have a plurality of magnetic gaps being parallel to each other but not co-linear to each other. In the second embodiment, the magnetic element is arranged and configured to have a magnetic gap being parallel to and co-linear to the timing based pattern.