The participant takes reasonable measures, given the technology available, to make sure the person consenting is the child's parent, using a signed consent form returned by mail, scan or fax; a credit card transaction; a call to a free phone line answered by trained staff; a video conference with trained personnel; a check of government-issued identification against databases with the identification deleted immediately after verification; email with a PIN or password obtained through one of those methods; or an approved vendor.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.