Exterior-source audit

An exterior coupling may imprint information before any proposed post-horizon transfer is invoked. Em03-F records an exact source–scalar unitary and exterior field channel CheungEm03F ({thm:unitary, thm:fieldchannel}). That source audit is useful for separating exterior coupling from later transfer. Its switching-work and field-energy ledger is not, without a gravitational balance calculation, black-hole mass loss.

A software spectrum comparison is admissible as a numerical audit only if its version, species, initial parameters, conventions, cutoffs, tolerances, and executable inputs are archived. Numerical agreement with (eq:source) does not identify a recovery channel.