What is claimed?
The paper claims an entanglement entropy bound C|boundary(A)| for unique ground states of finite-range Hamiltonians on finite induced square-lattice domains, uniformly under fixed local bounds and a global spectral gap.
Scientific scope
The constant depends on local dimension, interaction range and strength and the gap. Unique ground state and graph-locality assumptions matter; no claim is made for every gapless or degenerate quantum system. WRS inspected the selected opening statement and available scope note, not the full proof; independent formal replay was not run.
Evidence state
The manuscript reports a proof. WRS has not independently audited the complete argument or replayed the reported formalization. The grade and score here express conditional significance; they do not certify correctness. The provisional value enters the main reference rankings with an unverified label, but not achieved-science progress totals.
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