The Church could easily create an online pedophile registry.
Despite promises of transparency,  almost all diocese' refuse to release of names or files, not wanting victims to come forward. 

When the arrest of an archbishop nuncio was eminent.  Francis chose to protect Wesolowski by covertly sneaking him back to Vatican City to avoid the scandal and publicity of his arrest for sick child crimes in the Dominican Republic.  Francis, did not follow procedures.  After arrest, comes extradition, to bring back his offender to the Vatican.    

Francis, showing his care for child safety,  said Wesolowski was under arrest in the Vatican, until he was spotted "alone, strolling around Rome" free to prey on children.  Then the pope said he was under "house arrest" .  Under these constraints he filed his laptop with child porn.

Francis and this organization continue to operate using the same sneaky, self protective and secretive actions that got them into this mess in the first place.