{"assessments":[{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I035","problem_distinct":true,"reason":"P2 addresses sprint cue localization from false phase segmentation, using continuous distance profiles and interruption exclusions; it is not a readiness-regime hybrid or a repair of P1." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I064","problem_distinct":true,"reason":"P2 concerns competing histories behind archival fixity anomalies, with preservation-safe forensic probes, rather than discovery-search failure explanation." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I060","problem_distinct":true,"reason":"P2 preserves transient acoustic performances through a physical volatile-to-archival medium transfer, distinct from P1’s scholarly-note consolidation workflow." ,"structurally_faithful":true},{"causal_path_distinct":false,"independent_opportunity":false,"intervention_distinct":false,"p2_complete":true,"pair_id":"E13I108","problem_distinct":true,"reason":"Although the portal and reference-service targets differ, P2 repeats P1’s same successor constraint-memory, scope-gate, complexity-budget, staged-release, and rollback causal structure." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I025","problem_distinct":true,"reason":"P2 tests material revision strata with calibrated optical and elemental measurements, rather than attributing narrative-source and reliability evidence." ,"structurally_faithful":true},{"causal_path_distinct":true,"independent_opportunity":true,"intervention_distinct":true,"p2_complete":true,"pair_id":"E13I043","problem_distinct":true,"reason":"P2 pre-corrects physical courtroom construction through an instrumented full-scale mock-up, not administrative-rule design through a consequence forecast gate." ,"structurally_faithful":true}]}