It's a certified copy. But, speaking of this...We also have what is called the ROLB: Record Of Live Birth, or the COLB: Certificate Of Live Birth. Those have parents signatures on them. But only the "governments" signature on the BC.
Printed copy · Anthology Volume 2, page 583Printed copy from The Tender For Law Anthology, Volume 2, page 583 (printed 14 June 2014). Added by this site; not part of the Facebook export.