# Contract Ownership Verification Report

**Date**: 2025-12-11
**Deployer Address**: `0x4A666F96fC8764181194447A7dFdb7d471b301C8`

---

## 📊 Ownership Summary

### Contracts with Ownership/Admin

| Contract Type | Ownership Model | Function |
|---------------|----------------|----------|
| **CCIPWETH9Bridge** | Admin | `admin()` |
| **CCIPWETH10Bridge** | Admin | `admin()` |
| **WETH9** | None | N/A (standard ERC20) |
| **WETH10** | None | N/A (standard ERC20) |

---

## ✅ Ownership Verification Results

### BSC (Chain ID: 56)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0x3304b747e565a97ec8ac220b0b6a1f6ffdb837e6` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0x8078a09637e47fa5ed34f626046ea2094a5cde5e` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0x105f8a15b819948a89153505762444ee9f324684` | ✅ Admin: Deployer |

### Polygon (Chain ID: 137)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0xe0e93247376aa097db308b92e6ba36ba015535d0` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0xab57bf30f1354ca0590af22d8974c7f24db2dbd7` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0xa780ef19a041745d353c9432f2a7f5a241335ffe` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0xdab0591e5e89295ffad75a71dcfc30c5625c4fa2` | ✅ Admin: Deployer |

### Avalanche (Chain ID: 43114)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0x3304b747e565a97ec8ac220b0b6a1f6ffdb837e6` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0x8078a09637e47fa5ed34f626046ea2094a5cde5e` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0x105f8a15b819948a89153505762444ee9f324684` | ✅ Admin: Deployer |

### Base (Chain ID: 8453)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0x3304b747e565a97ec8ac220b0b6a1f6ffdb837e6` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0x8078a09637e47fa5ed34f626046ea2094a5cde5e` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0x105f8a15b819948a89153505762444ee9f324684` | ✅ Admin: Deployer |

### Arbitrum (Chain ID: 42161)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0x3304b747e565a97ec8ac220b0b6a1f6ffdb837e6` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0x8078a09637e47fa5ed34f626046ea2094a5cde5e` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0x105f8a15b819948a89153505762444ee9f324684` | ✅ Admin: Deployer |

### Optimism (Chain ID: 10)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **WETH9** | `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` | ℹ️ No ownership (standard ERC20) |
| **WETH10** | `0x3304b747e565a97ec8ac220b0b6a1f6ffdb837e6` | ℹ️ No ownership (standard ERC20) |
| **CCIPWETH9Bridge** | `0x8078a09637e47fa5ed34f626046ea2094a5cde5e` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0x105f8a15b819948a89153505762444ee9f324684` | ✅ Admin: Deployer |

### Ethereum Mainnet (Chain ID: 1)

| Contract | Address | Ownership Status |
|----------|---------|------------------|
| **CCIPWETH9Bridge** | `0x3304b747E565a97ec8AC220b0B6A1f6ffDB837e6` | ✅ Admin: Deployer |
| **CCIPWETH10Bridge** | `0xe0E93247376aa097dB308B92e6Ba36bA015535D0` | ✅ Admin: Deployer |

---

## 📋 Contract Ownership Details

### CCIPWETH9Bridge & CCIPWETH10Bridge

**Ownership Model**: Admin-based
**Admin Function**: `admin()` returns `address`
**Initial Admin**: Set to `msg.sender` (deployer) in constructor
**Admin Capabilities**:
- Add/remove destination chains
- Update destination chain configurations
- Change fee token address
- Transfer admin to new address

**Verification**: ✅ All bridge contracts have deployer as admin

### WETH9 & WETH10

**Ownership Model**: None
**Reason**: Standard ERC20 tokens without ownership
**Design**: Immutable contracts (no admin functions)
**Verification**: ℹ️ No ownership to verify (by design)

---

## 🔍 Verification Method

Ownership was verified using:
1. **Script**: `scripts/deployment/verify-contract-ownership.sh`
2. **Method**: Direct contract calls to `admin()` function
3. **Comparison**: Admin address vs deployer address
4. **Result**: All bridge contracts verified as owned by deployer

---

## ✅ Summary

### Ownership Status
- **Bridge Contracts**: ✅ 12/12 verified (deployer is admin)
  - BSC: 2/2 ✅
  - Polygon: 2/2 ✅
  - Avalanche: 2/2 ✅
  - Base: 2/2 ✅
  - Arbitrum: 2/2 ✅
  - Optimism: 2/2 ✅
- **Token Contracts**: ℹ️ 12/12 no ownership (by design)
  - WETH9: 6 contracts (no ownership)
  - WETH10: 6 contracts (no ownership)
- **Total Verified**: ✅ All contracts with ownership verified
- **Deployer Address**: `0x4A666F96fC8764181194447A7dFdb7d471b301C8`

### Security Notes
1. **Bridge Admin**: All bridge contracts are owned by deployer
2. **Token Immutability**: WETH9/WETH10 are immutable (no ownership)
3. **Admin Transfer**: Admin can be transferred if needed
4. **Multi-sig Consideration**: Consider transferring admin to multi-sig for production

---

## 🔧 Admin Functions Available

### CCIPWETH9Bridge & CCIPWETH10Bridge

```solidity
// Check current admin
address admin = bridge.admin();

// Transfer admin (only current admin can call)
bridge.transferAdmin(newAdmin);

// Add destination chain (only admin)
bridge.addDestination(chainSelector, receiverBridge);

// Remove destination chain (only admin)
bridge.removeDestination(chainSelector);

// Update destination chain (only admin)
bridge.updateDestination(chainSelector, receiverBridge);

// Change fee token (only admin)
bridge.setFeeToken(newFeeToken);
```

---

## 📝 Recommendations

1. **Multi-sig Setup**: Consider transferring admin to a multi-sig wallet for enhanced security
2. **Admin Backup**: Document admin transfer procedures
3. **Access Control**: Review admin functions and ensure proper access control
4. **Monitoring**: Set up alerts for admin transfer events

---

**Last Updated**: 2025-12-11
**Verification Script**: `scripts/deployment/verify-contract-ownership.sh`
