DailyWatch20 data ownership¶
market_data_platform.research_views is the authoritative implementation of DailyWatch20 data views. It produces data facts and source audits by:
- building the candidate universe from information available on the research date;
- validating the requested date's partitions and snapshot completeness;
- exposing dated ST availability alongside each daily row for point-in-time consumers;
- recording source files, content hashes, and data lineage;
- summarizing minute-data source inventories and input availability.
Readers fail when a Tonghuashun hot-stock snapshot is incomplete, stale, or dated inconsistently. alpha-research owns model-availability decisions, portfolio-backtester owns portfolio selection, and research-apps owns strategy-level experiment portfolios.
The data platform provides reproducible data views. It does not decide whether a strategy selects a security and does not store strategy models or experimental conclusions.
Workspace 2.0 ownership migration is complete. New data-reading, PIT-universe, or source-lineage logic belongs in market_data_platform.research_views. strategy-pipeline calls the public entry point and records the run receipt.
resolve_daily_watch20_assets(..., minute_dataset="legacy" | "tushare") defaults to TuShare and resolves the separate minute_1m_tushare alias and operational receipt. Reproduction of existing Guan research must explicitly set minute_dataset="legacy"; that path resolves minute_1m and remains the rollback and comparison source.