An electronic signature must be produced by a secure means that identifies the signatory and guarantees the link between the signature and the act it relates to. A signature tied to protection measures certified by an accredited certification service provider is presumed to meet these conditions unless the contrary is proved (Articles 9 and 17); one produced through a non-accredited provider is weighed by the judge (Article 18).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.