Sanitize public dataset fields

README.md

@@ -104,15 +104,10 @@ The metadata table can contain symbols that are not present in the current price
 | Column | Meaning |
 |---|---|
 | `date` | Trading date used for analysis and pivoting |
-| `timestamp` | Source timestamp value |
 | `symbol` | ETF ticker symbol |
 | `asset_type` | Asset label, currently `ETF` for this file |
-| `period` | Source period used by the collector |
-| `source_run` | Public run label for traceability |
 | `open`, `high`, `low`, `close` | Daily price fields |
-| `value` | Source value field when provided |
 | `volume` | Daily volume |
-| `gain_amount`, `gain_percentage` | Source-provided daily change fields |
 
 ### `instrument_metadata.parquet`
 
@@ -124,7 +119,6 @@ The metadata table can contain symbols that are not present in the current price
 | `trading` | Trading-status field from the source |
 | `fractional_trading` | Fractional-trading status field from the source, when available |
 | `option_trading`, `option_spread_trading`, `shorting_availability` | Instrument capability fields from the source |
-| `source_run` | Public run label for traceability |
 
 Some descriptive metadata fields may be blank. Treat metadata as a practical teaching aid, not as a complete security master.
 
@@ -146,15 +140,10 @@ Some descriptive metadata fields may be blank. Treat metadata as a practical tea
 | Column | Meaning |
 |---|---|
 | `date` | Trading date used for analysis and pivoting |
-| `timestamp` | Source timestamp value |
 | `symbol` | Index ticker symbol, currently SPX, VIX, and NDX |
 | `asset_type` | Asset label, currently `INDEX` for this file |
-| `period` | Source period used by the collector |
-| `source_run` | Public run label for traceability |
 | `open`, `high`, `low`, `close` | Daily index level fields |
-| `value` | Source value field when provided |
-| `volume` | Daily volume field when provided by the source |
-| `gain_amount`, `gain_percentage` | Source-provided daily change fields |
+| `volume` | Daily volume field when provided |
 
 ## Intended Use
 

etf_daily_prices.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:fe61e1763f2e29902f9903221db3a644492c57a4c6822c3120fb995eba6e8614
-size 3200976
+oid sha256:a92ccbed5af711420a82c9acb4519d43d48c998c1c3654d5fca658634535db70
+size 2335404

index_daily_prices.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:9a0be0047e165ea5117d15faccad7ad86308547fe217f741fedcccf985ced692
-size 190910
+oid sha256:bbcc64648b8fa054fab7f251802070d459048f64d2a5c939fd2648b6a913191d
+size 111218

instrument_metadata.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b9c9dc6bb0d30771e586c4799bf0f07df5db06abcb6429f85d1f4f52a6470753
-size 8265
+oid sha256:fb564ae0e35ab33f35ee637a6c7ae356842f071e5d5efa795acd374560aba2a4
+size 7610

manifest.json

@@ -2,9 +2,6 @@
   "dataset_name": "skfolio Masterclass ETF Teaching Data",
   "dataset_repo_id": "thecharttruth/etf-data",
   "processed_at_utc": "2026-05-14T20:32:24+00:00",
-  "source_run_labels": [
-    "20260514T203008Z_scheduled_daily"
-  ],
   "published_files": [
     "etf_daily_prices.parquet",
     "instrument_metadata.parquet",
@@ -20,5 +17,7 @@
   "etf_liquidity_rows": 95,
   "index_daily_prices_rows": 3787,
   "new_etf_daily_price_rows": 95,
-  "new_index_daily_price_rows": 3
+  "new_index_daily_price_rows": 3,
+  "public_sanitized": true,
+  "public_files_note": "Public Parquet files omit internal run labels and nonessential helper fields."
 }