Two lanes, decided by license. Ingested sources (CC-BY/CC0) contribute real values, every one recomputed through the same fitter the calculator uses. Referenced sources stay as standing — DOI, citation, coverage — because their compiled tables are in copyright even though the facts are not.
PENDINGRoyal Botanic Gardens Kew / SER-INSR — Seed Information Database (SID)CC BY 2.0 · 54,803 taxa
182,232 records incl. viability constants. Ingested once an export is obtained.
https://ser-sid.org/REFERENCEDProbert, Daws & Hay (2009) Ann. Bot. 104(1):57–69In Copyright · 195 taxa
195 species; hot-dry origins longer-lived, robust to phylogeny. Basis for the climate predictor. Referenced only.
https://doi.org/10.1093/aob/mcp082REFERENCEDColville & Pritchard (2019) New Phytol. 224(2):557–562In Copyright · 732 taxa
P50s across five storage conditions, 732 species. Referenced only.
https://doi.org/10.1111/nph.16006REFERENCEDFernández-Pascual et al. (2023) SeedArc, New Phytol. 240(2):466–470Contributor-owned · taxa
Global archive of primary germination data — our fitter's exact input shape. Collaboration/co-authorship model, not bulk redistribution. Path is to contribute the Hawaiian lots and co-use.
https://www.unioviedo.es/seedarc/REFERENCEDAravind et al. — viabilitymetrics R packageMIT (software) · taxa
The community-standard R fitter. Used as our cross-validation oracle: viability.js reproduces its published outputs to 4 dp.
https://aravind-j.github.io/viabilitymetrics/Registry shown from static fallback — not yet reading the database.