1. Confirm the full current Chain 138 canonical inventory on-chain: run `./scripts/verify/check-contracts-on-chain-138.sh` from a host where RPC is reachable, or open each address on explorer.d-bis.org. Current operator-facing target is **75/75**. Use `SKIP_EXIT=1` for report-only when RPC is unreachable.
2. Run Blockscout source verification from a host that can reach Blockscout (see CONTRACT_NEXT_STEPS_AND_RECOMMENDATIONS_COMPLETE Part 4).
3.~~Reconcile `.env`~~ — **Done 2026-02-11.** One entry per variable; matches CONTRACT_ADDRESSES_REFERENCE.
4. Confirm at explorer which contract is at `0x99b3511a2d315a497c8112c1fdd8d508d4b1e506` (Multicall vs Oracle Aggregator) and document in CONTRACT_ADDRESSES_REFERENCE.
**All optional/operator tasks with exact commands:** [OPERATOR_OPTIONAL_CHECKLIST](OPERATOR_OPTIONAL_CHECKLIST.md).
See [CONTRACT_NEXT_STEPS_AND_RECOMMENDATIONS_COMPLETE](CONTRACT_NEXT_STEPS_AND_RECOMMENDATIONS_COMPLETE.md) and [SMART_CONTRACTS_INVENTORY_ALL_CHAINS](SMART_CONTRACTS_INVENTORY_ALL_CHAINS.md).