Publish data/CC-MAIN-2026-08/00000.parquet

README.md

@@ -32,7 +32,7 @@ configs:
 
 Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
 
-The dataset currently includes crawl **CC-MAIN-2026-08** with **232,408 documents across 11 shards**. We plan to add more snapshots over time.
+The dataset currently includes crawl **CC-MAIN-2026-08** with **19,498 documents across 1 shards**. We plan to add more snapshots over time.
 
 Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
 
@@ -166,18 +166,18 @@ Empty conversions (pages where trafilatura could not extract meaningful content)
 
 ### Compression Ratios
 
-Numbers below are measured from 11 shards of CC-MAIN-2026-08.
+Numbers below are actual measurements summed across all 1 files of CC-MAIN-2026-08 (19,498 pages total), projected to the full crawl of 100,000 WARC files.
 
-| Stage | Per shard (avg) | Reduction |
-|---|---|---|
-| Raw WARC (.warc.gz, downloaded) | ~830 MB | — |
-| HTML extracted (uncompressed) | 2.9 GB | — |
-| Packed markdown WARC (.md.warc.gz) | 79.9 MB | **-97.3%** vs HTML |
-| Final Parquet (Zstd level 19) | 28.7 MB | **-64.1%** vs packed WARC |
+| Stage | 1 files (measured) | 100,000 files (projected) | Reduction |
+|---|---|---|---|
+| Raw WARC (.warc.gz, downloaded) | ~830.0 MB | ~83 TB | — |
+| HTML extracted (uncompressed) | 0 B | ~295 TB | — |
+| Packed markdown WARC (.md.warc.gz) | ~42.6 MB | ~3.7 TB | **-97.2%** vs HTML |
+| Final Parquet (Zstd level 19) | 28.9 MB | ~2.9 TB | **-32.1%** vs packed WARC |
 
-The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts uncompressed HTML from 2.9 GB to 79.9 MB per shard — a **97.3% reduction** — before any file-level compression.
+The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 0 B of uncompressed HTML down to 90.5 MB of markdown — a **97.2% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.1%.
 
-End to end: one raw WARC shard of ~830 MB becomes a **28.7 MB Parquet file** containing ~21128 clean markdown documents.
+End to end: ~830.0 MB of raw gzipped WARCs becomes **28.9 MB of Parquet** — a **96.5% total reduction** — containing 19,498 clean markdown documents.
 
 ### Personal and Sensitive Information
 

stats.csv

@@ -1,12 +1,2 @@
 crawl_id,file_idx,rows,html_bytes,md_bytes,parquet_bytes
-CC-MAIN-2026-08,0,21184,2934018801,83014521,29226909
-CC-MAIN-2026-08,1,21265,2961325911,80724752,29324414
-CC-MAIN-2026-08,2,21141,2920084882,77766365,28624679
-CC-MAIN-2026-08,3,21086,2959834291,80424489,28852889
-CC-MAIN-2026-08,4,21124,2984315198,79569270,28811454
-CC-MAIN-2026-08,5,21118,2940457892,79695450,28359001
-CC-MAIN-2026-08,6,20999,2926359938,79996642,28536135
-CC-MAIN-2026-08,7,21161,2926551572,79361922,28897356
-CC-MAIN-2026-08,8,21155,2969697387,81276956,28586435
-CC-MAIN-2026-08,9,21131,2910850749,77004269,28060998
-CC-MAIN-2026-08,10,21044,2933010991,80544092,28836695
+CC-MAIN-2026-08,0,19498,0,94933501,30312151