Upload README.md with huggingface_hub

README.md

@@ -21,8 +21,8 @@ Volumes below describe what is available beyond these samples.
 
 | Config | Sample | Available |
 |---|---|---|
-| `epo_patents` | 107 sections / 7 patents | 1.08M patents processed (2020-2025); 8.25M-document full-text backfile 1978-2025 (5.49M with description/claims, ~48B words) |
-| `wikidata_seed` | 1.45M triples / 42k subjects | 558M triples, ~34.5 GB |
+| `epo_patents` | 5,000 patents / 72,662 sections / 102M tokens, with source PDFs | 1.08M patents processed (2020-2025); 8.25M-document full-text backfile 1978-2025 (5.49M with description/claims, ~48B words) |
+| `wikidata_seed` | 1.45M triples / 42k entities | 558M triples, ~34.5 GB |
 | `personas` | 100k personas / 108 countries | 57.3M personas |
 
 More configs to follow: financial regulation (24 regulators, 12+ jurisdictions), 3GPP
@@ -32,16 +32,29 @@ specifications, European open science.
 
 European Patent Office publications, processed from PDF with structure preserved. One row per
 document **section**, with document metadata repeated on each row (`document_id` regroups them).
+5,000 patents evenly spread across 2020-2025.
 
 Composition notes: bibliographic front pages, figure lists, and boilerplate disclaimers are
 removed; paragraphs are reassembled across column and page breaks; margin line-numbering is
 dropped. Citation lists are kept but flagged (`is_document_list`) rather than deleted, since
 they carry citation structure. Bibliographic fields come from the document itself (INID codes),
 so `identifier` is the publication number and supplementary fields sit in `metadata` as JSON
-(`application_number`, `filing_date`, `ipc`, `inventors`, `kind_code`, `grant_or_prior_date`).
+(`application_number`, `filing_date`, `ipc`, `inventors`, `kind_code`, `grant_or_prior_date`,
+`source_file`).
 
-`date` is the publication year. Note that some documents are republications after opposition,
-where the original grant year differs — that year is preserved in `metadata`.
+`date` is the publication year. Some documents are republications after opposition, where the
+original grant year differs — that year is preserved in `metadata`.
+
+### Source PDFs
+
+`epo_patents/pdfs/epo_pdfs_<year>.tar` (6 files, 3.83 GB total) hold the original PDF for every
+patent in the config. Tar members are named by **publication number** — `2023/EP1343809B2.pdf` —
+so they join directly to `document_id`, even though the files as distributed by the EPO are named
+by application number. `epo_patents/epo_5k_pdf_manifest.parquet` maps
+`document_id -> tar, member, source_file, bytes`.
+
+This pairs each processed text with the page images it came from, for evaluating extraction
+quality or for document-understanding training.
 
 ## wikidata_seed