Integration Note (EA-SEMSTACK-INTEGRATION-01) is the governing document of the measurement-stack set. It reads both deployed measurement surfaces and corrects two claims made earlier the same day: substitution was already instrumented as the DSL enclosing span at β1.5, the most negative class in the taxonomy; and the composition layer's invocation of PER already had an operator in Ξ, the Audit-Performance Bifurcation Operator, with a published threshold of 0.5.
What survives as a genuine structural gap is the third-party channel. DS-6 measures credit inversion for the user's labour in the exchange; semantic rent concerns provenance belonging to an absent party transiting the channel. Nothing joins them.
Proposes Transit Rent (Ο_T) as an extension operator outside the fixed six-place tuple β SIM-4 holds β scored only where the retained term is observable and null otherwise. Specifies placement across provenanceerasure.org and laborvector.org, and states what must not happen.