# CMS CSSC Part C operations governed source-asset ledger

`medicare_silver.cssc_operations_source_asset` · Medicare Advantage, Part D, Medicaid · status live · 38 rows

Content, rights, and overlap ledger for the accepted public CSSC Part C operations corpus: 28 acquired public CSSC assets, five metadata-only external-code or implementation-guide limits, three existing-source pointers, and two separately deferred operational worlds.

**Grain.** One row per accepted release asset, governed source limit, deferred atomic lane, or existing Vlada overlap.

| column | type | meaning |
|---|---|---|
| corpus_snapshot_date | date |  |
| asset_id | string |  |
| family | string |  |
| release_date | date |  |
| schema_era | string |  |
| asset_status | string |  |
| license_class | string |  |
| maintained_by | string |  |
| asset_url | string |  |
| file_format | string |  |
| byte_count | bigint |  |
| asset_sha256 | string |  |
| bundle_member | string |  |
| payload_acquired | boolean |  |
| expected_rows | bigint |  |
| existing_vlada_overlap_source_id | string |  |
| source_limit | string |  |
| is_current_release | boolean |  |
| quality_flags | string |  |
| is_analytics_eligible | boolean |  |
| observed_period | date |  |
| asserted_at | date |  |
| effective_period_start | date |  |
| effective_period_end | date |  |
| cms_vintage_sequence | int |  |
| parse_revision | int |  |
| parser_artifact_hash | string |  |
| source_url | string |  |
| sha256_content_hash | string |  |
| source_id | string |  |
| is_current | boolean |  |
| bronze_object_key | string |  |
| s3_version_id | string |  |
| vintage_tag | string |  |
| drug_source_version_id | string |  |

Query it: `query_substrate` with `SELECT ... FROM medicare_silver.cssc_operations_source_asset WHERE ... LIMIT 100`; read `describe_data_source("medicare_silver.cssc_operations_source_asset")` first.