Supplementary code for: Extreme hydrology intensifies global heavy metal contamination risks in mining-affected agricultural soils
Research Digest organizes records from OpenAlex API and arXiv API and Crossref REST API into a static table for transparent comparison. It preserves official source links and dates, marks missing enrichment, and adds deterministic grouping, change, recency, trend, or significance fields only where the documented inputs support them, without recommendations or unsupported claims.