The ornamental design for a digitalsign, as shown and described.
1. Digital sign
1.1:Perspective
1.2:Front
1.3:Left
1.4:Top
1.5:Bottom
The broken lines depict the portions of the digital sign that form no part of the claimed design; the dash-dot broken lines define the bounds of the claimed design and form no part thereof; reproduction 1.1 is a front perspective view of the digital sign; reproduction 1.2 is a front view thereof, in which the back view is a mirror image; reproduction 1.3 is a left view thereof, in which the right view is a mirror image; reproduction 1.4 is a top view thereof; and reproduction 1.5 is a bottom view thereof.