record public PyJHora parity evidence

2026-07-12 15:48:05 +08:00
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+# PyJHora Same-Chart Parity: Public Smoke Batch
+
+Date: 2026-07-12
+
+## Scope
+
+Ten public/synthetic smoke birth records were replayed through the local
+canonical baseline and an isolated PyJHora comparison runner. Both sides used
+Lahiri ayanamsa and Mean Node mode. No user birth record or private event data
+was used.
+
+## Result
+
+| Field status | Count |
+|---|---:|
+| `match` | 836 |
+| `boundary_sensitive` | 4 |
+| `mismatch` | 0 |
+| Total compared | 840 |
+
+The four boundary-sensitive rows are D10 values at divisional boundaries. They
+are retained as downgraded evidence, not silently counted as exact matches.
+
+Covered outputs:
+
+- D1: ascendant and nine planetary rows
+- D9
+- D10
+- current Vimshottari boundaries
+
+Not yet compared:
+
+- D2 / D4
+- Shadbala
+- Ashtakavarga
+- VedAstro official raw snapshot
+- JHora desktop export
+- jyotishganit outside its Panchanga-oriented raw coverage
+
+## Reproduction
+
+Use `benchmarks/jyotish/scripts/run_pyjhora_compare.py` with explicit
+`--build-local --node-mode mean`. Use `--output-prefix` for resumable batches.
+Summarize each matrix through `scripts/pyjhora_parity_summary.py`.
+
+## Boundary
+
+This is partial external verification for the listed outputs only. It does not
+establish full three-engine parity, global algorithmic accuracy, or event
+prediction accuracy. VedAstro remains `official_blocked` until an official raw
+response is captured and normalized.