This paper reports the V9 ECSM electron-like packet exclusion test. Building on prior ECSM packet tests of Dirac-like propagation, response-potential dynamics, and gauge-covariant phase coupling, the work constructs antisymmetric two-packet states from electron-like ECSM response packets. The V9 notebook passes all 21 final criteria. Identical single-particle states antisymmetrise to zero, separated same-internal states remain allowed, same-location orthogonal internal states remain allowed, exchange produces the required minus sign, one-particle marginals normalise correctly, and both unitary and χ-deformed propagation preserve the antisymmetric exclusion structure. The result is not claimed as a derivation of full fermionic quantum field theory or full Fermi–Dirac thermodynamics. It is presented as a minimal exclusion-sector bridge showing that the ECSM electron-like packet scaffold can support fermion-like antisymmetry and Pauli-like identical-state exclusion.
Adam Sheldrick (Tue,) studied this question.