PAC Reference

PAC is the conditioning layer that consumes frozen Phase Atlas measurement artifacts and applies deterministic transformations to external event-set outputs under the same event set.

PAC outputs feed the Capital Impact Layer for deterministic post-conditioning analytics and one-page decision artifacts.

Conditioning modes

PAC modes are release-declared and manifest-addressable. Each run records the selected mode and supporting artifact hashes for replay.

Core output columns

  • event_id: external event identifier from the input set
  • base_weight: incoming event weight before conditioning
  • pac_multiplier: deterministic conditioning factor from Phase Atlas context
  • conditioned_weight: adjusted portfolio weight after PAC application
  • atlas_surface_id: source Phase Atlas surface identifier used by the run

Manifests and receipts

  • conditioning_manifest.json: declared inputs, versions, and mode
  • conditioning_receipt.json: replay metadata, checksums, and completion status
  • phase_atlas_manifest.json: read-only provenance record for measurement artifacts

Capital Impact handoff

Capital Impact compares baseline and PAC-conditioned outputs from the same event set and reports capital-relevant tail metrics without changing event generation, tracks, or model physics.

  • capital_impact_report.json: VaR, TVaR, capital multiplier, extreme-event mass, regime segmentation
  • capital_impact_sheet.md: one-page capital impact sheet (Markdown / PDF-ready)

Reference receipt fragment

{
  "run_id": "pac-run-2026-01-27-001",
  "mode": "declared_default",
  "phase_atlas_manifest": "manifests/phase_atlas_manifest.json",
  "conditioning_manifest": "out/conditioning_manifest.json",
  "output_sha256": "cf1177cb3ea2f848f818d3f64f85d19f20f1f7d9bb9f6f7e4e1f31c09c236222",
  "status": "complete"
}

Operational boundaries

  • Phase Atlas remains measurement-only and read-only in PAC workflows
  • Non-forecasting outputs
  • No track modification
  • No event generation
  • No model physics modification