{"@type": "dcat:Dataset", "accessLevel": "restricted public", "accrualPeriodicity": "R/P1Y", "bureauCode": ["016:00"], "conformsTo": null, "contactPoint": {"@type": "vcard:Contact", "fn": "Open Data", "hasEmail": "mailto:Open.Data@ssa.gov"}, "dataQuality": null, "describedBy": null, "describedByType": null, "description": "Numident - The RRB sends an annual file to SSA for SSN validation. The file contains SSNs for new hires to the rail industry.", "distribution": null, "identifier": "US-GOV-SSA-647", "isPartOf": null, "issued": null, "keyword": ["Numident", "RRB", "Validation"], "landingPage": null, "language": null, "license": "https://www.ssa.gov/data/Restricted-Public-Licensing-Information.html", "modified": "2026-05-08", "primaryITInvestmentUII": null, "programCode": ["016:000"], "publisher": {"name": "Social Security Administration"}, "references": null, "rights": "The data contained in this data exchange is restricted due to sensitivity and/or privacy issues.  If you would like more information on a data exchange with SSA please visit the following web site https://www.ssa.gov/dataexchange/.", "spatial": "United States", "systemOfRecords": null, "temporal": null, "theme": null, "title": "RRB - NUMIDENT"}