# Phase 173 Target

## Chosen Positive Target

- **Fresh topic slug:** `librpa-qsgw-deterministic-reduction-consistency-core`
- **Fresh topic mode:** `first_principles`
- **Chosen candidate id:** `candidate:librpa-qsgw-deterministic-reduction-consistency-core`
- **Chosen candidate type:** `claim_card`
- **Intended later L2 target:** `claim_card:librpa-qsgw-deterministic-reduction-consistency-core`

## Honest Scope

The chosen positive target is **not** “LibRPA QSGW is fully converged”.

The bounded positive target is:

- the `LibRPA QSGW` deterministic-reduction thread-consistency core
- restricted to the `H2O/really_tight iter=10` reference workflow
- supported by real code anchors, validator criteria, and engineering evidence
  showing `OMP=1` and `OMP=32` produce the same
  `homo_lumo_vs_iterations.dat` trajectory

## Source Of Truth

- **Primary code root:** `D:\BaiduSyncdisk\Theoretical-Physics\LibRPA-develop`
- **Workflow wrapper root:** `D:\BaiduSyncdisk\repos\oh-my-LibRPA`
- **Validator path:** `D:\BaiduSyncdisk\Theoretical-Physics\automation\validators\qsgw_validator.py`

## Explicit Exclusions

- full `1e-3 eV` convergence for the general QSGW workflow
- treating failed mixing-only scans as positive closure evidence
- whole-codebase ingestion or whole-stack `LibRPA` closure
- multi-system portability claims beyond the bounded reference case
