{
      "name": "multilateral-netting-settlement",
      "domain": "Corporate Treasury & FX",
      "title": "Multilateral Netting Settlement",
      "spec_version": "0.8.0",
      "wave": 44,
      "description": "Linear two-step chain for IHB settlement cycles. Step 1 computes N-entity corporate cash netting (gross positions to net positions to minimum settlement legs, BIS CPMI greedy algorithm). Step 2 allocates IHB overnight interest on the net settlement balances per OECD TP Guidelines 2022 Chapter X arm's-length rate, with ACT/360 day-count and per-member withholding tax. Corporate cash netting only -- NOT FICC clearing margin netting. ZERO PII BY CONSTRUCTION.",
      "composer_url": "https://ainumbers.co/chaingraph/chains/multilateral-netting-settlement.html",
      "regulatory_refs": [
        "BIS CPMI Net Settlement Framework 2012 (greedy netting algorithm)",
        "OECD Transfer Pricing Guidelines 2022 Chapter X (financial transactions, IHB)",
        "SWIFT gpi SLA Framework (settlement leg efficiency)"
      ],
      "steps": [
        {
          "tool_id": "art-259-compute-multilateral-netting",
          "handoff": "Net entity positions, settlement legs, wire-count savings, netting_efficiency_pct. Emits entity_net_positions[] and settlement_legs[]. NOT FICC clearing margin netting."
        },
        {
          "tool_id": "art-260-allocate-ihb-interest",
          "handoff": "OECD TP arm's-length interest allocation on net settlement balances. Per-member gross_interest, withholding_amount, net_interest. Supports ACT/360, ACT/365, 30/360. Final stage."
        }
      ]
    }