203 lines
5.9 KiB
Markdown
203 lines
5.9 KiB
Markdown
# Smart Contract Verification Report
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**Generated:** 2025-11-01
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**Purpose:** Verify all deployed MEV bot contracts on Arbiscan
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**Network:** Arbitrum One (Chain ID: 42161)
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---
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## Deployed Contracts Requiring Verification
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### Core Execution Contracts
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#### 1. Arbitrage Executor
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- **Address:** `0x6C2B1c6Eb0e5aB73d8C60944c74A62bfE629c418`
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- **Contract:** `ProductionArbitrageExecutor.sol`
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- **Purpose:** Main arbitrage execution logic with flash swap support
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- **Status:** ⏳ Pending Verification
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- **Verification Command:**
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```bash
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export ARBISCAN_API_KEY="your_key_here"
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./scripts/verify-contracts.sh 0x6C2B1c6Eb0e5aB73d8C60944c74A62bfE629c418 ProductionArbitrageExecutor
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```
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#### 2. Uniswap V3 Flash Swapper
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- **Address:** `0x7Cc97259cBe0D02Cd0b8A80c2E1f79C7265808b4`
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- **Contract:** Uniswap V3 flash swap implementation
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- **Purpose:** Execute flash swaps on Uniswap V3 pools
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- **Status:** ⏳ Pending Verification
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#### 3. Data Fetcher Contract
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- **Address:** `0xC6BD82306943c0F3104296a46113ca0863723cBD`
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- **Contract:** Batch pool data fetcher
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- **Purpose:** 99% RPC call reduction through batch queries
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- **Status:** ⏳ Pending Verification
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#### 4. Uniswap V2 Flash Swapper
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- **Address:** `0xE82c24b3fD47995E0626b1e8ac13E13130f5AeEE`
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- **Contract:** Uniswap V2 flash swap implementation
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- **Purpose:** Execute flash swaps on Uniswap V2 pools
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- **Status:** ⏳ Pending Verification
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#### 5. Legacy Flash Swapper
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- **Address:** `0x5801ee5c2f6069e0f11cce7c0f27c2ef88e79a95`
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- **Contract:** Legacy flash swapper (points to V3)
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- **Purpose:** Backward compatibility
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- **Status:** ⏳ Pending Verification
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#### 6. Flash Loan Receiver
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- **Address:** `0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512`
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- **Contract:** `FlashLoanReceiver.sol`
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- **Purpose:** Balancer flash loan receiver (0% fee)
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- **Status:** ⏳ Pending Verification
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---
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## Verification Prerequisites
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### 1. Arbiscan API Key
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Get your API key from: https://arbiscan.io/myapikey
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```bash
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export ARBISCAN_API_KEY="YourApiKeyHere"
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```
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### 2. Compiler Settings
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All contracts deployed with:
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- **Compiler Version:** `v0.8.19+commit.7dd6d404`
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- **Optimization:** Enabled (200 runs)
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- **EVM Version:** Default
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### 3. Constructor Arguments
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Document constructor arguments used for each deployment.
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---
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## Verification Process
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### Automated Verification Script
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Use the provided script for each contract:
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```bash
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# Verify Arbitrage Executor
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./scripts/verify-contracts.sh 0x6C2B1c6Eb0e5aB73d8C60944c74A62bfE629c418 ProductionArbitrageExecutor
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# Verify Flash Loan Receiver
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./scripts/verify-contracts.sh 0xe7f1725E7734CE288F8367e1Bb143E90bb3F0512 FlashLoanReceiver
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```
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### Manual Verification via Forge
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Alternative using Forge directly:
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```bash
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forge verify-contract \
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--chain-id 42161 \
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--num-of-optimizations 200 \
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--watch \
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--compiler-version "v0.8.19+commit.7dd6d404" \
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--etherscan-api-key "$ARBISCAN_API_KEY" \
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"0x6C2B1c6Eb0e5aB73d8C60944c74A62bfE629c418" \
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"contracts/ProductionArbitrageExecutor.sol:ProductionArbitrageExecutor"
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```
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---
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## Security Considerations
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### Contract Audit Status
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- ✅ **ReentrancyGuard:** Implemented on all critical functions
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- ✅ **AccessControl:** Role-based permissions (ADMIN, EXECUTOR, EMERGENCY)
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- ✅ **Pausable:** Emergency stop functionality
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- ✅ **SafeERC20:** Used for all token transfers
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- ✅ **Slippage Protection:** Max 5% slippage (500 basis points)
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- ✅ **Pool Authorization:** Whitelist system for flash loan pools
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- ✅ **Gas Price Limits:** Maximum gas price enforcement
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- ✅ **Profit Thresholds:** Minimum profit validation
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### Known Vulnerabilities (From Logic Audit)
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**⚠️ Note:** The following vulnerabilities are in the **Go backend code**, not the smart contracts:
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1. DFS path building bug (Go code)
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2. Cache poisoning (Go code)
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3. Slippage formula error (Go code)
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4. Gas price race condition (Go code)
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5. Float-to-int precision loss (Go code)
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6. Handler concurrency issues (Go code)
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**Smart contracts appear secure** based on code review. Issues are in the backend orchestration layer.
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---
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## Post-Verification Checklist
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- [ ] All contracts verified on Arbiscan
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- [ ] Contract source code matches deployed bytecode
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- [ ] Constructor arguments documented
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- [ ] ABI exported and stored in `bindings/deployed/`
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- [ ] Contract addresses updated in all configs
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- [ ] Security audit report updated
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- [ ] Read/write functions tested via Arbiscan interface
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---
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## Verification Status Tracking
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| Contract | Address | Status | Verification Link | Date |
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|----------|---------|--------|-------------------|------|
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| ArbitrageExecutor | `0x6C2B1c6...` | ⏳ Pending | - | - |
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| UniswapV3FlashSwapper | `0x7Cc9725...` | ⏳ Pending | - | - |
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| DataFetcher | `0xC6BD823...` | ⏳ Pending | - | - |
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| UniswapV2FlashSwapper | `0xE82c24b...` | ⏳ Pending | - | - |
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| LegacyFlashSwapper | `0x5801ee5...` | ⏳ Pending | - | - |
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| FlashLoanReceiver | `0xe7f1725...` | ⏳ Pending | - | - |
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---
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## Next Steps
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1. **Obtain Arbiscan API key** from https://arbiscan.io/myapikey
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2. **Export API key:**
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```bash
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export ARBISCAN_API_KEY="your_key_here"
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```
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3. **Run verification script** for each contract
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4. **Document verification links** in the table above
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5. **Update status** as verifications complete
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6. **Test contract interactions** via Arbiscan UI
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---
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## Contract Interaction Examples
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### Via Arbiscan (After Verification)
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**Check Authorization:**
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```solidity
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// Read function: authorizedPools(address)
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authorizedPools(0xPoolAddress) → returns bool
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```
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**Execute Arbitrage:**
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```solidity
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// Write function: executeArbitrage(address pool, bytes params)
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// Requires EXECUTOR_ROLE
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```
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**Withdraw Profits:**
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```solidity
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// Write function: withdrawProfits(address token, uint256 amount)
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// Requires ADMIN_ROLE
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```
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---
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## Contact & Support
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- **Arbiscan Support:** https://arbiscan.io/contactus
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- **Verification Docs:** https://docs.arbiscan.io/getting-started/verifying-contracts
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---
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**Report Status:** In Progress
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**Last Updated:** 2025-11-01
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