proxmox/docs/archive/status/BRIDGE_VERIFICATION_FINAL_STATUS.md

Bridge Verification Final Status

Date: 2025-01-27
Route: ChainID 138 (WETH) → Ethereum Mainnet (USDT)
Status: ⚠️ Address Mapping Fixed - On-Chain Verification Pending

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✅ Completed Actions

1. Fixed address-mapping.json ✅

File: smom-dbis-138/config/address-mapping.json

Changes Made:

• ✅ Corrected WETH9 mapping to canonical address: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
• ✅ Corrected WETH10 mapping to canonical address: 0xf4BB2e28688e89fCcE3c0580D37d36A7672E8A9f
• ✅ Added separate mappings for CCIPWETH9Bridge and CCIPWETH10Bridge
• ✅ Updated notes to clarify predeployment vs deployment

Before (Incorrect):

"WETH9": {
  "deployedAddress": "0x3304b747E565a97ec8AC220b0B6A1f6ffDB837e6"  // ❌ This is the bridge!
}

After (Correct):

"WETH9": {
  "deployedAddress": "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"  // ✅ Canonical address
}

2. Created Verification Scripts ✅

Scripts Created:

1. scripts/verify-weth-canonical-erc20.sh - ERC-20 function verification
2. scripts/test-bridge-quote.sh - Bridge quote testing

---

⚠️ Current Status

On-Chain Verification: Pending (RPC Issues)

Issue: RPC endpoint https://rpc-http-pub.d-bis.org is experiencing connectivity issues (HTTP 530 errors)

What We Know:

• ✅ Genesis.json shows WETH9 is predeployed at canonical address with bytecode
• ✅ Address mapping is now correct
• ⚠️ Cannot verify on-chain bytecode due to RPC connectivity issues

What Needs Verification (when RPC is available):

1. Bytecode Verification:

   cast code 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 --rpc-url https://rpc-http-pub.d-bis.org
   

   Expected: Non-empty bytecode

2. ERC-20 Function Verification:

   • symbol() - Should return "WETH"
   • decimals() - Should return 18
   • name() - Should return token name
   • totalSupply() - Should return valid supply
   • balanceOf(address) - Should work

3. Bridge Quote Verification:

   • Test thirdweb Bridge API for route: (138, WETH) → (1, USDT)
   • Check if route exists and returns valid quote

---

Next Steps (When RPC Available)

Step 1: Verify On-Chain Bytecode

./scripts/verify-weth-canonical-erc20.sh

Expected Result: Bytecode exists, all ERC-20 functions work

Step 2: Test Bridge Quote

./scripts/test-bridge-quote.sh

Expected Outcomes:

Outcome A (Best Case): Route exists

• thirdweb Bridge returns valid quote
• You can proceed with bridging
• Only remaining work: approvals, UI/UX, error handling

Outcome B (Common): No direct route

• thirdweb Bridge doesn't support ChainID 138 or route
• Use CCIP Bridge instead: Bridge WETH → Swap to USDT on Mainnet
• Or use multi-hop route via L2

Step 3: Determine Go/No-Go

Go Criteria:

1. ✅ Bytecode exists at canonical address
2. ✅ ERC-20 functions work correctly
3. ✅ Bridge quote available (thirdweb or CCIP)

No-Go Criteria:

• Bytecode missing (chain not started with correct genesis)
• ERC-20 functions fail
• No bridge route available (liquidity/coverage issue)

---

Current Assessment

What We Know ✅

1. Genesis Configuration: ✅ Correct

   • WETH9 predeployed at canonical address
   • Bytecode present in genesis.json

2. Address Mapping: ✅ Fixed

   • WETH9 now correctly mapped to canonical address
   • Bridge addresses correctly separated

3. Configuration Files: ✅ Correct

   • .env files use correct addresses
   • Bridge contracts properly identified

What We Need to Verify ⚠️

1. On-Chain Status: ⚠️ Pending (RPC issues)

   • Does WETH9 actually exist on-chain?
   • Are ERC-20 functions working?

2. Bridge Route: ⚠️ Pending

   • Does thirdweb Bridge support this route?
   • Is CCIP Bridge available as alternative?

---

Recommendation

Immediate Action

Wait for RPC connectivity, then run:

# 1. Verify ERC-20
./scripts/verify-weth-canonical-erc20.sh

# 2. Test bridge quote
./scripts/test-bridge-quote.sh

If RPC Continues to Have Issues

Alternative Verification Methods:

1. Use different RPC endpoint (if available)
2. Check Blockscout explorer: https://explorer.d-bis.org/address/0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2
3. Use internal RPC if accessible: http://192.168.11.250:8545

If On-Chain Verification Passes

You're at the finish line:

• Address mapping fixed ✅
• ERC-20 verified ✅
• Bridge route available ✅

Remaining work:

• Implement approval flow
• Execute bridge transactions
• Add error handling and monitoring

---

Files Updated

1. ✅ smom-dbis-138/config/address-mapping.json - Fixed WETH9/WETH10 mappings
2. ✅ scripts/verify-weth-canonical-erc20.sh - ERC-20 verification script
3. ✅ scripts/test-bridge-quote.sh - Bridge quote testing script
4. ✅ docs/GENESIS_ENV_REVIEW_WETH_BRIDGE.md - Detailed review
5. ✅ docs/GENESIS_ENV_REVIEW_SUMMARY.md - Quick summary
6. ✅ docs/BRIDGE_VERIFICATION_FINAL_STATUS.md - This document

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Conclusion

Status: ⚠️ Address mapping fixed, on-chain verification pending

Blockers:

• RPC connectivity issues preventing on-chain verification
• Need to verify ERC-20 functions work
• Need to test bridge quote availability

Confidence Level: High (once RPC is available)

• Genesis.json shows correct predeployment
• Address mapping is now correct
• Configuration files are correct

Next Critical Test: Run verification scripts when RPC is available to confirm on-chain status and bridge route availability.

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Last Updated: 2025-01-27
Next Action: Verify on-chain when RPC connectivity is restored