Immutable public paper release for source commit 30dc37f. This version adds the post-hoc, zero-model selective-revision feasibility audit and preserves the frozen claim boundaries. It is machine-audited development evidence, not human review, human IAA, publication gold, external blindness, semantic correctness, a deployable selector, prospective calibration, causal policy utility, or strict submission readiness. The portable archive includes a standalone verifier and SOURCE.lock; verify with system Python in isolated mode.