Scope

A finite unitary radiation model is not, merely by being unitary, a model of Hawking spectra, gravitational backreaction, or rapid scrambling. Our three-step benchmark is a partial-emission model with a two-qubit remnant. It is not a complete evaporation history.

No entanglement wedge, island, quantum extremal surface, Page curve, or replica wormhole is constructed. No result changes the status of a field-theoretic insertion or symmetry problem in another manuscript. En02-C and Em02-C, if similarly named documents exist, are not identified.