We designed the Forecast kernel to be both immutable and formally provable end to end. The proof stack now contains 383 machine-checked Lean theorems. The gate rejects placeholders and any proof that relies on more than two standard axioms. A second layer verifies the exact bytecode that Base will execute in KEVM so the proof does not stop at source code and trust the compiler. Every run must also catch a forbidden storage write that we deliberately inject. Miss it, and the run is invalid. This guards against formal verification’s most dangerous failure mode: a valid proof of the wrong claim. Medusa completed 5m calls against nine safety properties this morning. Echidna completed its 5m by noon. Neither found a violation. Both are coverage gated: if they miss a path we require, the run fails. Then we attacked the test suite itself. We generated 1,813 mutant contracts, each containing one deliberate defect, and ran the full suite against every one. The suite killed 1,707. We reviewed the survivors by hand and recorded why each survived. The campaign is now running again on the machine pictured, 540 mutants in. Everything closes into one verification ledger tied to one exact commit. That is the commit we launch.