Private export 20260911-1107

Private synchronized export for Andrew’s website analysis agent / Wall Analyst consumers.

Vintage: freeze snapshot private-export-20260911-1107
Freeze wall-clock (ET): 2026-09-11T11:07:22-04:00 (UTC 2026-09-11T15:07:22Z)
Integrity: PRAGMA integrity_check = ok
n_records / n_features: 4,207,456 (1:1; set equality on record_id = race_records.id)
Cities / race-years: 34 / 240
max(ingested_at): 2026-09-11T15:04:44Z
Canonical ID: features.record_id = race_records.id (NOT 0..n-1 row index)
valid_splits: 3,326,908
HTW among valid: 1,022,545 (~30.74%)
features: race + runner_name retained (9 runner_name nulls)

vs prior private-export-20260911-0336

• New ids: +228,796 · deleted: 0 · updated same id: 0
• New editions: Chicago 2016/2017, Cologne 2016/2017, Hamburg 2025, New York 2008 (partial, n=200 live ingest), 2009, 2010

Archives (importer-compatible; analysis/download_release.py expects 8/9 members)

• htw-private-export-CORE-20260911-1107.tar.gz — exactly 8 files at archive root
• htw-private-export-FULL-20260911-1107.tar.gz — same 8 + features.parquet (9). Shared 8 are byte-identical to CORE.

Standalone assets

• parquet copies + freeze sqlite.gz + ID-CONTRACT / COUNT-DIFF / FEATURE-FIELD-NOTES / README / MANIFEST
• audits-20260911-1107-freeze.zip + RELEASE-SHA256SUMS.txt

Do not commit runner names to the public tree. Website pin / deploy unchanged.