A major payment institution must maintain with MAS security of the prescribed amount (as cash or an acceptable bank guarantee; the guideline states $100,000 where monthly average volume per service is at most $6 million and $200,000 otherwise), which MAS can enforce for customer claims on exit; within 45 days after its licence is surrendered, lapses or is revoked it must submit an auditor's closure certificate confirming customer money reached recipients and unforeseen liabilities are provided for.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.