I put the machine quilter's name and state and date on the label along with my own piecing and applique. Before I send it out.
I have known a few people who enter shows without indicating the quilting or patchwork is done by someone else. They have to live with it, not me.
Many many well known quilt book authors send their tops out to be quilted and very seldom is it mentioned in the book. Both hand and machine.