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README.md

@@ -55,6 +55,24 @@ uv run python scripts/hydrate_defextra.py \
 
 - `data/defextra_legal.csv` / `data/defextra_legal.parquet`: DefExtra markers (no excerpts).
 
+## Hydrated columns
+
+The hydrated output (e.g., `defextra_hydrated.csv`) matches the schema below.
+Full legal marker columns are documented in `docs/defextra_hydration.md`.
+
+| Column | Description |
+| --- | --- |
+| `paper_id` | Paper identifier (often a Semantic Scholar ID, DOI, or arXiv ID). |
+| `paper_title` | Paper title. |
+| `paper_doi` | DOI (if available). |
+| `paper_arxiv` | arXiv ID or URL (if available). |
+| **`concept`** | Term / concept being defined. |
+| **`definition`** | Definition text (hydrated from PDFs). |
+| **`context`** | Context excerpt (hydrated from PDFs). |
+| **`definition_type`** | Definition type (e.g., explicit / implicit). |
+| `source_file` | Source JSON filename used during curation. |
+| **`is_out_of_domain`** | Boolean flag for out‑of‑domain papers. |
+
 ## Scripts
 
 - `scripts/hydrate_defextra.py`: hydrate DefExtra from PDFs + GROBID.

docs/defextra_hydration.md

@@ -123,6 +123,81 @@ uv run python scripts/hydrate_defextra.py \
 - `definition_end_punct`, `context_end_punct`:
   trailing punctuation marker captured from the manual copy.
 
+## Legal CSV columns (full)
+
+| Column | Description |
+| --- | --- |
+| `paper_id` | Paper identifier (often a Semantic Scholar ID, DOI, or arXiv ID). |
+| `paper_title` | Paper title. |
+| `paper_doi` | DOI (if available). |
+| `paper_arxiv` | arXiv ID or URL (if available). |
+| `concept` | Term / concept being defined. |
+| `definition_type` | Definition type (e.g., explicit / implicit). |
+| `source_file` | Source JSON filename used during curation. |
+| `is_out_of_domain` | Boolean flag for out‑of‑domain papers. |
+| `definition_preserve_linebreaks` | Whether line breaks should be preserved in the definition. |
+| `context_preserve_linebreaks` | Whether line breaks should be preserved in the context. |
+| `definition_preserve_hyphenation` | Whether hyphenation should be preserved in the definition. |
+| `context_preserve_hyphenation` | Whether hyphenation should be preserved in the context. |
+| `definition_has_bracket_citation` | Definition contains bracket‑style citations (e.g., `[12]`). |
+| `definition_has_paren_citation` | Definition contains parenthetical citations (e.g., `(Smith, 2020)`). |
+| `definition_has_letter_digit` | Definition contains letter–digit patterns (e.g., `bias4`). |
+| `context_has_bracket_citation` | Context contains bracket‑style citations. |
+| `context_has_paren_citation` | Context contains parenthetical citations. |
+| `context_has_letter_digit` | Context contains letter–digit patterns. |
+| `definition_end_punct` | Expected trailing punctuation for definition. |
+| `context_end_punct` | Expected trailing punctuation for context. |
+| `marker_version` | Marker format version. |
+| `hash_version` | Hashing scheme version. |
+| `definition_char_start` | Character start offset (TEI) for definition (if available). |
+| `definition_char_end` | Character end offset (TEI) for definition (if available). |
+| `definition_match` | Debug marker: reference string used to compute definition hashes. |
+| `definition_hash64` | 64‑bit hash of definition token sequence. |
+| `definition_sha256` | SHA‑256 hash of definition token sequence. |
+| `definition_token_count` | Token count for definition span. |
+| `definition_head_hash64` | Head‑anchor 64‑bit hash for definition. |
+| `definition_head_sha256` | Head‑anchor SHA‑256 hash for definition. |
+| `definition_head_token_count` | Head‑anchor token count for definition. |
+| `definition_mid_hash64` | Mid‑anchor 64‑bit hash for definition. |
+| `definition_mid_sha256` | Mid‑anchor SHA‑256 hash for definition. |
+| `definition_mid_token_count` | Mid‑anchor token count for definition. |
+| `definition_tail_hash64` | Tail‑anchor 64‑bit hash for definition. |
+| `definition_tail_sha256` | Tail‑anchor SHA‑256 hash for definition. |
+| `definition_tail_token_count` | Tail‑anchor token count for definition. |
+| `definition_head_alt_hash64` | Alternate head‑anchor 64‑bit hash for definition. |
+| `definition_head_alt_sha256` | Alternate head‑anchor SHA‑256 hash for definition. |
+| `definition_head_alt_token_count` | Alternate head‑anchor token count for definition. |
+| `definition_mid_alt_hash64` | Alternate mid‑anchor 64‑bit hash for definition. |
+| `definition_mid_alt_sha256` | Alternate mid‑anchor SHA‑256 hash for definition. |
+| `definition_mid_alt_token_count` | Alternate mid‑anchor token count for definition. |
+| `definition_tail_alt_hash64` | Alternate tail‑anchor 64‑bit hash for definition. |
+| `definition_tail_alt_sha256` | Alternate tail‑anchor SHA‑256 hash for definition. |
+| `definition_tail_alt_token_count` | Alternate tail‑anchor token count for definition. |
+| `context_char_start` | Character start offset (TEI) for context (if available). |
+| `context_char_end` | Character end offset (TEI) for context (if available). |
+| `context_match` | Debug marker: reference string used to compute context hashes. |
+| `context_hash64` | 64‑bit hash of context token sequence. |
+| `context_sha256` | SHA‑256 hash of context token sequence. |
+| `context_token_count` | Token count for context span. |
+| `context_head_hash64` | Head‑anchor 64‑bit hash for context. |
+| `context_head_sha256` | Head‑anchor SHA‑256 hash for context. |
+| `context_head_token_count` | Head‑anchor token count for context. |
+| `context_mid_hash64` | Mid‑anchor 64‑bit hash for context. |
+| `context_mid_sha256` | Mid‑anchor SHA‑256 hash for context. |
+| `context_mid_token_count` | Mid‑anchor token count for context. |
+| `context_tail_hash64` | Tail‑anchor 64‑bit hash for context. |
+| `context_tail_sha256` | Tail‑anchor SHA‑256 hash for context. |
+| `context_tail_token_count` | Tail‑anchor token count for context. |
+| `context_head_alt_hash64` | Alternate head‑anchor 64‑bit hash for context. |
+| `context_head_alt_sha256` | Alternate head‑anchor SHA‑256 hash for context. |
+| `context_head_alt_token_count` | Alternate head‑anchor token count for context. |
+| `context_mid_alt_hash64` | Alternate mid‑anchor 64‑bit hash for context. |
+| `context_mid_alt_sha256` | Alternate mid‑anchor SHA‑256 hash for context. |
+| `context_mid_alt_token_count` | Alternate mid‑anchor token count for context. |
+| `context_tail_alt_hash64` | Alternate tail‑anchor 64‑bit hash for context. |
+| `context_tail_alt_sha256` | Alternate tail‑anchor SHA‑256 hash for context. |
+| `context_tail_alt_token_count` | Alternate tail‑anchor token count for context. |
+
 ## Notes
 
 - Small mismatches are expected due to PDF/GROBID text normalization.