USDA Phytochemical & Ethnobotanical Database — Enriched v2.0
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This archive contains the complete enriched dataset (104,388 records, 24,771
unique compounds, 2,315 plant species). Each record includes the original USDA
Dr. Duke's baseline fields (chemical, plant_species, application, dosage) plus
four quantitative enrichment layers: PubMed citation count (March 2026 snapshot),
ClinicalTrials.gov study count, ChEMBL bioactivity measurement count, and US
patent count since 2020 from USPTO PatentsView.

Files included:
  - ethno_dataset_2026_v2.json      Full dataset (compact JSON, ~23 MB)
  - ethno_dataset_2026_v2.parquet   Full dataset (Snappy Parquet, ~975 KB)
  - MANIFEST_v2.json                SHA-256 checksums, record count, field stats
  - ethno_sample_400.json           400-row reference sample (same schema)

Data sources: USDA Dr. Duke's Phytochemical Database (public domain), NCBI PubMed
(E-utilities API), ClinicalTrials.gov (bulk XML), ChEMBL 35 (SQLite), USPTO
PatentsView (bulk TSV). All enrichment pipelines are deterministic, checkpoint-
resumable, and ran locally against downloaded bulk data — no rate-limited API
calls. Enrichment completed March 2026.

License: This dataset is licensed for internal use by the purchasing legal entity
as specified in the tier purchased (Single Entity / Team / Enterprise). Resale,
public redistribution, and derivative dataset publication are prohibited. See
your purchase confirmation email for full license terms. Contact founder@ethno-api.com
for licensing questions.