# M12-L05 — Lab contract

**Build:** Deploy on BSC testnet with faucet BNB; collect receipt and explorer URL.

**Pass:** Verified deployment, smoke test, reproducible report.

**Failure injection:** Testnet success alone does not prove mainnet readiness.

**Review question:** What additional audit and operations gates precede mainnet?

Status: specification; only count as executable when source and tests are present and verified.