are created separately for a study and its subordinate objects: phenotype variables, phenotype trait tables, documents, and genotype datasets, prefixed a phs, phv, pht, phd, and phg, respectively. Accession numbers have suffixes “v” for data version, “p” for participant set version, and “c” for consent group version. Phenotype and genotype data are distributed as both public summary records and individual-level data that require authorization to use. Associations between genotypes and a phenotype trait of interest are not subordinate objects of a study, as an analysis may include data components from several studies simultaneously.