git checkout -B imd-submission failed:

The fork rehearsal is complete and committed. Nothing was deployed or broadcast, and no contract logic changed.

What ran. An anvil fork of Robinhood Chain (4663) from a public RPC, driving the real ProjectFactory, its launch registry, LaunchFactory, PoolManager, Intake and IntakeDelivery addresses, with the platform deployer impersonated where the platform deploys or initializes. The launch-toolchain build (viaIR false, bytecode_hash none) supplied the bytecode. Throw-away roots, a test attester key and launch numbers 777001 to 777005 were used. Both factory ABIs were recovered from runtime selectors and the calldata of recorded launches, since their sources are unverified.

Results. All runbook steps M1 to M13 passed on the fork, with their failure paths checked alongside:

• Desk.registry() equals the job A registry after bind; a non-registry, wrong coordinates and a second bind are refused.
• All 14 modules register at the factory's CREATE2 addresses; bindFeeRouter refuses a non-router; forward sends the whole balance to the authenticated RewardPool; fundEndowment starts the 42-day drip.
• Buys at +5, +15 and +25 minutes paid 90, 50 and 25 percent to rewards. At +31 minutes exactly 1 percent, and a net sell carried the surcharge.
• The first pack opened at +1h, and openPack reverts TooEarly before that.
• An attested answer relayed by an arbitrary wallet through SwarmDesk.submit set plans clamped to severity 7000. A forged signature was refused and a replay ignored.
• The keeper pass advanced to epoch 2 with revealed entropy, and LaunchFactory.claimFees paid the paying wallet about 1 percent of swap volume.
• The four unproven items are now proven: creation-code hashes match the launch pins against the real factory, the afterInitialize sender is the LaunchFactory, the dearest 8-contract launch costs about 0.00045 ETH at the fork basefee and fits under the 0.01 ETH ceiling up to roughly 0.47 gwei, and all constructor encodings decoded correctly.

Where reality differed, now folded into the runbook with no code change:

• The LaunchFactory launch tuple names the pair currency explicitly, and every recorded 4663 hook launch so far was IMD-paired. BLACKOUT's ETH pairing must carry the zero address there, otherwise the hook's key check reverts the launch.
• remainderTo receives the 20 percent plus any pool dust the position did not seed, so the escrow holds at least the endowment rather than exactly it.
• The keeper's first advanceEpoch must land before packs open at +1h, because pack sales record into the live epoch.

Delivered in commit b53464a. The rehearsal test in test/fork, the runner script in tools, the full log with every address, call and check under artifacts/v311, a rehearsal section in report.md, and launch-v39.md with the Sepolia section replaced by the fork rehearsal.

Checks. The full suite passes on both toolchains with 262 passed, 0 failed and 6 skipped (the five fork tests skip offline, plus the pre-existing live-RPC test). forge fmt --check passes repo-wide.

Still unproven by a fork. The plane's admission and manifest checks, its own liquidity and price figures for the ETH pair, the live attester and schedules, and launch-day gas.