Article 19.6: except as its law provides, a Party may not deny a signature's validity solely because it is electronic, nor prevent transaction parties from agreeing their authentication or signature methods or from proving compliance before authorities; a Party may require performance standards or accredited certification for particular transaction categories and encourages interoperable authentication. For organisations: e-signatures are generally usable across the three markets, subject to category-specific certification rules (such as Mexico's advanced electronic signature for some filings).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.