proxmox/docs/archive/status/VERIFICATION_FINAL_STATUS.md

Ethereum Mainnet Contract Verification - Final Status

Date: $(date)
Contract: CCIPWETH9Bridge (0x89dd12025bfCD38A168455A44B400e913ED33BE2)
Status: ⚠️ BYTECODE MISMATCH - TROUBLESHOOTING

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🔍 Current Situation

Verification Attempts

1. First Attempt: Compiler version mismatch (0.8.19 vs 0.8.20)

   • ✅ Fixed: Updated instructions to select 0.8.20

2. Second Attempt: Invalid "compiler" field in Standard JSON

   • ✅ Fixed: Removed invalid field

3. Current Issue: Bytecode mismatch

   • ⚠️ Status: Standard JSON compiles but bytecode doesn't match deployed contract
   • Error: "Unable to find matching Contract Bytecode and ABI"

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✅ Files Ready

Standard JSON Files

1. Original: docs/CCIPWETH9Bridge_standard_json.json

   • Fixed (invalid "compiler" field removed)
   • Ready for use

2. Generated: docs/CCIPWETH9Bridge_standard_json_generated.json

   • Generated from flattened source
   • Valid JSON
   • Same content as original (from flattened source)

Source Files

• Flattened: docs/CCIPWETH9Bridge_flattened.sol (396 lines)
• Original: /home/intlc/projects/smom-dbis-138/contracts/ccip/CCIPWETH9Bridge.sol

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🎯 Next Steps for Verification

Option 1: Try Generated Standard JSON

Use the newly generated Standard JSON file:

1. Go to Etherscan: https://etherscan.io/address/0x89dd12025bfcd38a168455a44b400e913ed33be2#code

2. Click "Contract" tab → "Verify and Publish"

3. Select "Standard JSON Input"

4. Upload: docs/CCIPWETH9Bridge_standard_json_generated.json

5. Select Compiler Version: v0.8.20+commit.a1b79de6

6. Enable "Via IR": Yes

7. Optimization: Yes (200 runs)

8. Enter Constructor Arguments:

   0x00000000000000000000000080226fc0ee2b096224eeac085bb9a8cba1146f7d000000000000000000000000c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2000000000000000000000000514910771af9ca656af840dff83e8264ecf986ca
   

9. Submit

Option 2: Verify Source Code Matches

The bytecode mismatch suggests the source code might not exactly match what was deployed. Check:

1. Compare deployed bytecode with what the Standard JSON compiles to
2. Verify source code hasn't changed since deployment
3. Check deployment transaction for exact compiler settings

Option 3: Use Sourcify (Alternative)

Sourcify is an alternative verification service:

1. Go to: https://sourcify.dev/
2. Upload contract metadata
3. Submit for verification

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🔧 Troubleshooting Bytecode Mismatch

Possible Causes

1. Source Code Changed: Contract source modified after deployment
2. Compiler Settings: Subtle difference in compiler settings
3. Import Resolution: Different import resolution during deployment
4. Metadata: Metadata differences affecting bytecode

Diagnostic Commands

# Get deployed bytecode
cast code 0x89dd12025bfCD38A168455A44B400e913ED33BE2 --rpc-url $ETHEREUM_MAINNET_RPC > deployed.bytecode

# Compare with compiled bytecode from Standard JSON
# (Would need to compile Standard JSON locally and compare)

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📋 Verification Checklist

• Standard JSON file prepared
• Invalid fields removed
• Compiler version documented (0.8.20)
• Constructor arguments encoded
• Generated Standard JSON from source
• Try verification with generated Standard JSON ← NEXT STEP
• If still fails, investigate bytecode differences
• Consider Sourcify as alternative

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📚 Available Resources

Scripts

• scripts/generate-standard-json-from-source.sh - Generate Standard JSON
• scripts/verify-manual-instructions.sh - Manual verification guide

Documentation

• docs/ETHERSCAN_VERIFICATION_BYTECODE_MISMATCH_FIX.md - Bytecode mismatch troubleshooting
• docs/ETHERSCAN_VERIFICATION_FIX_COMPILER_VERSION.md - Compiler version fix
• docs/ETHEREUM_MAINNET_VERIFICATION_AUTOMATION.md - Automation guide

Files

• docs/CCIPWETH9Bridge_standard_json.json - Original (fixed)
• docs/CCIPWETH9Bridge_standard_json_generated.json - Generated from source
• docs/CCIPWETH9Bridge_flattened.sol - Flattened source

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💡 Recommendations

1. Try Generated Standard JSON First: Use the newly generated file
2. Verify Exact Settings: Ensure all compiler settings match deployment exactly
3. Check Deployment Transaction: Review the actual deployment transaction for clues
4. Consider Manual Verification: Sometimes manual verification via UI works when automated fails
5. Alternative Services: Try Sourcify if Etherscan continues to fail

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Status: ⚠️ READY FOR VERIFICATION WITH GENERATED STANDARD JSON
Priority: Try verification with CCIPWETH9Bridge_standard_json_generated.json
Last Updated: $(date)