{"study_id":"GSX:POP-004","current_version":"1.0","versions":[{"version":"1.0","status":"published","current":true,"date_modified":"2026-09-28","changes":[{"version":"1.0","date":"2026-09-29","author":"GreyScienx","summary":"Filled the semantic-twin form from the published manuscript. Empty fields now say what is registered or what is not published.","changed_ids":["GSX:POP-004"]},{"version":"1.0","date":"2026-09-29","author":"Pakang Senosha","summary":"Recorded publisher final review, PDF visual approval, and acceptance of candidate links as contextual references.","changed_ids":["GSX:POP-004"]}],"href":"https://greyscienx.com/api/v1/research/the-politics-of-an-ageing-electorate/versions/1.0"}]}