# DBIS GRU MASTERBOOK — VOLUME II (FULL EXPANSION)

## Supranational Reserve Framework, Global Reserve Pools, Stabilization Mechanisms, and GRU-backed SDR Architecture

This volume expands the GRU supranational reserve model into a complete operational, legal, structural, and monetary specification suitable for adoption by sovereign blocs, supranational institutions, and regional monetary unions.

---

## 1. PURPOSE & SCOPE

Volume II defines the **GRU as a supranational reserve asset**, capable of functioning as:

* A global reserve alternative to SDR
* A stabilizing commodity-backed reserve instrument
* A cross-regional liquidity anchor
* A multi-asset hedge against fiat volatility
* A multi-reality monetary stabilizer within DBIS framework

---

## 2. SUPRANATIONAL GRU RESERVE CLASSES

### 2.1 Class SR‑1 — Global Reserve GRU

Held by DBIS and multinational monetary alliances.

#### Roles:

* Anchor unit for global macro-liquidity
* Crisis stabilization
* Quantum-synchronizable reserve asset

#### Implementation:

- **Service**: `GruReservePoolService`
- **Model**: `GruSupranationalReserveClass` (classType: 'SR-1')
- **API**: `/api/gru/reserve-pool`

---

### 2.2 Class SR‑2 — Regional Reserve GRU

Issued to:

* EU
* AU
* ASEAN
* GCC
* MERCOSUR
* Indo-Pacific councils

#### Functions:

* Regional reserve pooling
* FX corridor stabilization
* Cross-border payments harmonization

#### Implementation:

- **Service**: `GruReservePoolService`
- **Model**: `GruSupranationalReserveClass` (classType: 'SR-2')
- **API**: `/api/gru/reserve-pool`

---

### 2.3 Class SR‑3 — Strategic Reserve GRU

Backed by:

* Energy commodities
* Food security reserves
* Strategic metals/minerals

#### Purpose:

* Supply-chain stabilization
* Long-horizon reserve growth
* Crisis-response liquidity

#### Implementation:

- **Service**: `GruReservePoolService`
- **Model**: `GruSupranationalReserveClass` (classType: 'SR-3')
- **API**: `/api/gru/reserve-pool`

---

## 3. SUPRANATIONAL ISSUANCE MODEL

### 3.1 Issuers

* DBIS (Primary)
* OMDN-CB (Registrar)
* Supranational councils via DBIS mandate

### 3.2 Issuance Workflow

```
Reserve Request → Eligibility Check → GRU Index Verification (LiXAU etc.) → Allocation → Registration → Settlement → Ω-Layer Finality
```

#### Implementation:

- **Service**: `GruSupranationalIssuanceService`
- **API**: `/api/gru/supranational/issue`
- **Workflow Steps**:
  1. Eligibility check (SMIA, ILIE compliance)
  2. GRU index verification
  3. Standard GRU issuance
  4. Reserve pool allocation
  5. Legal registration
  6. Settlement with Ω-Layer finality

### 3.3 Eligibility Criteria

* Sovereign or supranational entity
* Demonstrated reserve adequacy
* Compliance with SMIA
* Accepts DBIS oversight
* Causality-stable sovereign identity per ILIE

#### Implementation:

- **Service**: `GruSupranationalIssuanceService.checkEligibility()`
- **API**: `/api/gru/supranational/eligibility`

---

## 4. SUPRANATIONAL RESERVE POOLS (SRP)

### 4.1 Architecture

```
DBIS
   │
   ▼
SRP (Global)
   │
   ├── Regional Reserve Pools
   │
   └── Strategic Reserve Clusters
```

#### Implementation:

- **Service**: `GruReservePoolService`
- **Models**: `GruReservePool`, `GruReserveAllocation`, `GruReserveWithdrawal`
- **API**: `/api/gru/reserve-pool`

### 4.2 Pool Functions

* Liquidity mutualization
* Regional crisis intervention
* FX corridor smoothing
* Commodity shock absorption

#### Implementation:

- **Liquidity Mutualization**: `GruReservePoolService.mutualizeLiquidity()`
- **Crisis Intervention**: `GruReservePoolService.crisisIntervention()`
- **FX Smoothing**: `GruReservePoolService.smoothFxCorridor()`
- **API**: `/api/gru/reserve-pool/mutualize`, `/api/gru/reserve-pool/crisis-intervention`

---

## 5. GRU‑BACKED SDR (Special Drawing Right) ALTERNATIVE

### 5.1 SDR_GRU Composite Formula

```
SDR_GRU = 0.40 GRU + 0.30 XAU + 0.30 Basket_FX (USD/EUR/CNY/etc.)
```

#### Implementation:

- **Service**: `GruSdrService`
- **Model**: `GruSdrInstrument`
- **API**: `/api/gru/sdr`
- **Calculation**: `GruSdrService.calculateValuation()`

### 5.2 Advantages Over IMF SDR

* Metal-backed stability
* Multi-reality reconciliation (Ω-Layer)
* Quantum-consistent valuation
* Lower volatility
* Non-politicized DBIS governance

### 5.3 SDR Operations

#### Initialize SDR_GRU:
```bash
POST /api/gru/sdr/initialize
{
  "fxBasket": {
    "USD": 0.35,
    "EUR": 0.30,
    "CNY": 0.20,
    "GBP": 0.10,
    "JPY": 0.05
  }
}
```

#### Calculate Valuation:
```bash
POST /api/gru/sdr/{sdrId}/calculate
```

#### Convert Currency to SDR:
```bash
POST /api/gru/sdr/convert-to
{
  "sdrId": "SDR-GRU-xxx",
  "amount": "1000",
  "sourceCurrency": "USD",
  "targetCurrency": "SDR_GRU"
}
```

---

## 6. GLOBAL GRU RESERVE NETWORK

### 6.1 Full Architecture

```
                 ┌───────────────────────────┐
                 │    DBIS (Primary Core)    │
                 └──────────┬───────────────┘
                            │
                            ▼
              ┌───────────────────────────┐
              │ Global Supranational Pool │
              └──────────┬────────────────┘
                         │
        ┌────────────────┼────────────────┐
        │                                │
Regional Reserve Pools            Strategic Reserve Clusters
```

#### Implementation:

- **Models**: `SupranationalEntity`, `GruReservePool`
- **Service**: `GruReservePoolService`
- **API**: `/api/gru/reserve-pool`

---

## 7. LEGAL STRUCTURE

### 7.1 Foundational Law

* Sovereign Monetary Instruments Act (SMIA)
* DBIS Reserve Governance Charter (DRGC)

### 7.2 Legal Instruments

#### GRU Reserve Certificate (GRC)

Identifies supranational reserve allocations.

**Implementation**:
- **Service**: `GruLegalInstrumentsService.issueGrc()`
- **Model**: `GruReserveCertificate`
- **API**: `POST /api/gru/legal-instruments/grc`

#### GRU Reserve Bond (GRB)

5–50 year reserve-linked supranational issuance.

**Implementation**:
- **Service**: `GruLegalInstrumentsService.issueGrb()`
- **Model**: `GruReserveBond`, `GruReserveBondCoupon`
- **API**: `POST /api/gru/legal-instruments/grb`

#### GRU SDR Instrument (GSDR)

Cross-border liquidity access instrument.

**Implementation**:
- **Service**: `GruLegalInstrumentsService.issueGsdr()`
- **Model**: `GruSdrTransaction` (transactionType: 'allocation')
- **API**: `POST /api/gru/legal-instruments/gsdr`

---

## 8. INTEROPERABILITY & SETTLEMENT

### 8.1 Settlement Algorithm

```
SupraGRU_settlement = MERGE(
   GRU_index_state,
   XAU_state,
   regional_fx_basket,
   Ω_truth_state
)
```

#### Implementation:

- **Service**: `GruSupranationalSettlementService`
- **Model**: `GruSupranationalSettlement`
- **API**: `POST /api/gru/settlement/supranational`
- **Method**: `executeSupraGruSettlement()`

### 8.2 Cross-Chain Reconciliation

* Ω-Layer merge
* GAS atomic confirmation
* GQL truth sampling

#### Implementation:

- **Service**: `GruSupranationalSettlementService.reconcileCrossChain()`
- **API**: `POST /api/gru/settlement/supranational/{settlementId}/reconcile`

---

## 9. RESERVE RISK & OVERSIGHT

### 9.1 SARE (Sovereign AI Risk Engine)

* Evaluates sovereign exposure
* Calculates reserve adequacy

#### Implementation:

- **Service**: `GruSareIntegrationService`
- **API**: 
  - `POST /api/gru/sare/evaluate-exposure`
  - `POST /api/gru/sare/reserve-adequacy`
  - `GET /api/gru/sare/monitor-pools`

### 9.2 ARI (Autonomous Regulatory Intelligence)

* Ensures compliance
* Issues automated warnings

#### Implementation:

- **Service**: `GruAriIntegrationService`
- **API**:
  - `POST /api/gru/ari/ensure-compliance`
  - `POST /api/gru/ari/check-smia`
  - `POST /api/gru/ari/check-ilie`

---

## 10. API REFERENCE

### 10.1 Reserve Pool Management

#### Create Reserve Pool
```bash
POST /api/gru/reserve-pool
{
  "poolType": "global|regional|strategic",
  "poolName": "Global Reserve Pool",
  "entityId": "optional",
  "currencyCode": "optional",
  "assetType": "multi_asset"
}
```

#### Allocate Reserves
```bash
POST /api/gru/reserve-pool/allocate
{
  "poolId": "GRU-POOL-xxx",
  "reserveClassId": "SR-CLASS-xxx",
  "amount": "1000000",
  "sovereignBankId": "optional",
  "entityId": "optional",
  "allocationType": "initial_allocation"
}
```

#### Withdraw Reserves
```bash
POST /api/gru/reserve-pool/withdraw
{
  "poolId": "GRU-POOL-xxx",
  "amount": "500000",
  "sovereignBankId": "optional",
  "entityId": "optional",
  "withdrawalType": "liquidity_access"
}
```

### 10.2 SDR Operations

#### Initialize SDR_GRU
```bash
POST /api/gru/sdr/initialize
{
  "fxBasket": {
    "USD": 0.35,
    "EUR": 0.30,
    "CNY": 0.20
  }
}
```

#### Get Current Value
```bash
GET /api/gru/sdr/{sdrId}/value
```

#### Convert to SDR
```bash
POST /api/gru/sdr/convert-to
{
  "sdrId": "SDR-GRU-xxx",
  "amount": "1000",
  "sourceCurrency": "USD",
  "targetCurrency": "SDR_GRU"
}
```

### 10.3 Supranational Issuance

#### Issue Supranational GRU
```bash
POST /api/gru/supranational/issue
{
  "entityId": "EU-ENTITY-xxx",
  "reserveClass": "SR-1|SR-2|SR-3",
  "issuanceClass": "Class_I",
  "amount": "1000000",
  "unitType": "M00",
  "metalIndexLink": "LiXAU",
  "poolId": "optional",
  "registrarOfficeId": "OMDN-CB-xxx"
}
```

#### Check Eligibility
```bash
POST /api/gru/supranational/eligibility
{
  "entityId": "EU-ENTITY-xxx",
  "sovereignBankId": "optional",
  "reserveClass": "SR-1"
}
```

### 10.4 Legal Instruments

#### Issue GRC
```bash
POST /api/gru/legal-instruments/grc
{
  "poolId": "GRU-POOL-xxx",
  "allocationId": "GRU-ALLOC-xxx",
  "amount": "1000000",
  "holderId": "BANK-xxx",
  "holderType": "sovereign_bank"
}
```

#### Issue GRB
```bash
POST /api/gru/legal-instruments/grb
{
  "poolId": "optional",
  "entityId": "optional",
  "principalAmount": "10000000",
  "maturityYears": 10,
  "interestRate": "0.05",
  "couponRate": "0.04",
  "couponFrequency": "annual"
}
```

### 10.5 Settlement

#### Execute Supranational Settlement
```bash
POST /api/gru/settlement/supranational
{
  "poolId": "GRU-POOL-xxx",
  "sourceBankId": "BANK-xxx",
  "destinationBankId": "BANK-yyy",
  "amount": "1000000",
  "currencyCode": "USD",
  "atomicSettlementId": "optional"
}
```

### 10.6 Risk & Oversight

#### Evaluate Sovereign Exposure
```bash
POST /api/gru/sare/evaluate-exposure
{
  "sovereignBankId": "BANK-xxx"
}
```

#### Calculate Reserve Adequacy
```bash
POST /api/gru/sare/reserve-adequacy
{
  "entityId": "optional",
  "sovereignBankId": "optional"
}
```

#### Ensure Compliance
```bash
POST /api/gru/ari/ensure-compliance
{
  "poolId": "optional",
  "entityId": "optional"
}
```

---

## 11. VOLUME II SUMMARY

Volume II defines GRU as a fully-functional supranational reserve asset with:

* Global + regional pool architecture
* Legal & issuance standards
* Supranational SDR replacement
* Full settlement integration with DBIS truth fabric
* Multi-layer risk supervision

This enables multi-continent adoption and stable long-range economic integration.

---

## 12. IMPLEMENTATION FILES

### Services

- `src/core/monetary/gru/gru-reserve-pool.service.ts` - Reserve pool management
- `src/core/monetary/gru/gru-sdr.service.ts` - SDR_GRU operations
- `src/core/monetary/gru/gru-supranational-issuance.service.ts` - Supranational issuance
- `src/core/monetary/gru/gru-legal-instruments.service.ts` - Legal instruments (GRC, GRB, GSDR)
- `src/core/monetary/gru/gru-supranational-settlement.service.ts` - Settlement with Ω-Layer
- `src/core/monetary/gru/gru-sare-integration.service.ts` - SARE integration
- `src/core/monetary/gru/gru-ari-integration.service.ts` - ARI integration

### Database Models

- `SupranationalEntity` - Supranational entities (EU, AU, ASEAN, etc.)
- `GruSupranationalReserveClass` - Reserve classes (SR-1, SR-2, SR-3)
- `GruReservePool` - Reserve pools (global, regional, strategic)
- `GruReserveAllocation` - Reserve allocations
- `GruReserveWithdrawal` - Reserve withdrawals
- `GruSdrInstrument` - SDR_GRU instruments
- `GruReserveCertificate` - GRC certificates
- `GruReserveBond` - GRB bonds
- `GruSupranationalSettlement` - Supranational settlements

### API Routes

All routes are under `/api/gru/` prefix with zero-trust authentication middleware.

---

## 13. INTEGRATION POINTS

### Existing GRU Services

- Extends `GruIssuanceService` for supranational issuance
- Uses `GruIndexService` for SDR composition
- Integrates with `GruValuationService` for SDR valuation

### Risk Services

- Integrates with `SRICalculatorService` for reserve adequacy
- Uses existing compliance framework

### Settlement Integration

- Integrates with `AtomicSettlementService` for Ω-Layer finality
- Connects to GQL (Global Quantum Ledger) for truth sampling

---

## 14. NEXT STEPS

1. Run database migrations to create new tables
2. Initialize default SDR_GRU instrument
3. Create default reserve classes (SR-1, SR-2, SR-3)
4. Configure supranational entities (EU, AU, ASEAN, etc.)
5. Set up automated compliance monitoring
6. Test settlement workflows with Ω-Layer integration

