Where personal data are processed for scientific or historical research or for statistics, the controller may derogate from the rights of access (Article 15 GDPR), rectification (16), restriction (18) and objection (21), but only to the extent that those rights are likely to make the specific purposes impossible or seriously impair them, and only if the appropriate measures of Article 65 are in place.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.