the men of the tribe dressed and masked to represent the Kachinas in a traditional ceremony.Even though there are male and female Kachinas, only men can represent them.
a masked doll which represents a kachina spirit. They are presented to the women and children of the tribe.
... J Anderson on his Web site at www.cl.cam.ac.uk/~rja14/tcpa-faq.html/ for a clear discussion of two prominent proposals.
Examples of existing "digital rights management" ...