{"assessments":[{"causal_path_distinct":false,"independent_opportunity":false,"intervention_distinct":false,"p2_complete":true,"pair_id":"E13I003","problem_distinct":true,"reason":"P2 is complete and faithful, and its weld-qualification setting is a different concrete problem. But it repeats P1’s same multiplicity path—many candidate trials select a favorable pass, then a frozen independent confirmation controls promotion—and the same registry/holdout/confirmation gate intervention." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I032","problem_distinct":true,"reason":"P2 fully instantiates event-centered modeling for otherwise lost enclosure-level exposure history. Its irreversible physical witness creates and retains event evidence, unlike P1’s reconciliation of mutable cross-system access states; the causal path and intervention are genuinely distinct." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I021","problem_distinct":true,"reason":"P2 addresses hidden material strata in manuscript-to-print history, using conservator-bounded measurement to diagnose literary-form change. This is distinct from P1’s mutable digital-work citation regime in both causal route and intervention, while retaining the complete diagnosis-to-transition structure." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I109","problem_distinct":true,"reason":"P2 concerns competing physical production histories for a manuscript trace and adds controlled optical observations as discriminating evidence. That differs from P1’s textual perspective-attribution docket in problem, evidence-generating intervention, and causal route; both are complete abductive workflows." ,"structurally_faithful":true},{"causal_path_distinct":false,"independent_opportunity":false,"intervention_distinct":false,"p2_complete":true,"pair_id":"E13I080","problem_distinct":true,"reason":"The footwear case is a distinct application, but it reproduces P1’s same structural path: valid group metric masks repeated individual excursions, followed by a distributional display and human review. The changed measures and decision context are implementation-level variants." ,"structurally_faithful":true},{"causal_path_distinct":false,"independent_opportunity":false,"intervention_distinct":false,"p2_complete":true,"pair_id":"E13I093","problem_distinct":true,"reason":"Expired patron records are a different stock, but P2 is the same stock-flow control pattern as P1: reconcile stock against inflows and clearance, set level/age thresholds, investigate hidden stores, and adjust authorized levers. It is a domain substitution rather than an independent opportunity." ,"structurally_faithful":true}]}