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This record spans 2 PDC studies; repeat for each.","url":"https://pdc.cancer.gov/pdc/study/PDC000222","requires":[],"est_time":"5 minutes","cli_snippet":null,"audience":"human","evidence":[{"method":"derived","source_url":"https://pdc.cancer.gov/pdc/study/PDC000222","source_label":"PDC access documentation","retrieved_at":"2026-09-21T12:30:59.433536Z","snippet":null,"locator":null,"confidence":"medium","reviewer":null,"reviewed_at":null,"note":"Generated by applying the repository's documented access policy to this dataset's identifiers. It is not a reviewer's account of this dataset."}]},{"order":2,"action":"Accept the data use guidelines and download","detail":"The portal asks for acknowledgement and citation, not a data access request.","url":"https://pdc.cancer.gov/pdc/data-use-guidelines","requires":[],"est_time":"minutes to hours, by study size","cli_snippet":null,"audience":"human","evidence":[{"method":"derived","source_url":"https://pdc.cancer.gov/pdc/data-use-guidelines","source_label":"PDC access documentation","retrieved_at":"2026-09-21T12:30:59.433538Z","snippet":null,"locator":null,"confidence":"medium","reviewer":null,"reviewed_at":null,"note":"Generated by applying the repository's documented access policy to this dataset's identifiers. It is not a reviewer's account of this dataset."}]},{"order":3,"action":"Resolve the study UUID, then fetch the file manifest","detail":"filesPerStudy keys on the study UUID, not on PDC000222: called with the pdc_study_id it returns the right number of rows with every column null. Resolve the UUID first and pass the terms acknowledgement.","url":"https://pdc.cancer.gov/data-dictionary/publicapi-documentation/","requires":[],"est_time":null,"cli_snippet":"python - <<'PY'\nimport requests\nAPI = \"https://proteomic.datacommons.cancer.gov/graphql\"\n\ndef gql(query, **variables):\n    r = requests.post(API, json={\"query\": query, \"variables\": variables}, timeout=180)\n    r.raise_for_status()\n    body = r.json()\n    if body.get(\"errors\"):\n        raise RuntimeError(body[\"errors\"][0][\"message\"])\n    return body[\"data\"]\n\nstudy = gql('query($id:String!){ study(pdc_study_id:$id acceptDUA:true){ study_id } }',\n            id=\"PDC000222\")[\"study\"][0]\nfiles = gql('query($sid:String!){ filesPerStudy(study_id:$sid acceptDUA:true)'\n            '{ file_id file_name file_size } }', sid=study[\"study_id\"])[\"filesPerStudy\"]\nprint(len(files), \"files\")\nPY","audience":"agent","evidence":[{"method":"derived","source_url":"https://pdc.cancer.gov/data-dictionary/publicapi-documentation/","source_label":"PDC access documentation","retrieved_at":"2026-09-21T12:30:59.433540Z","snippet":null,"locator":null,"confidence":"medium","reviewer":null,"reviewed_at":null,"note":"Generated by applying the repository's documented access policy to this dataset's identifiers. 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