{
  "common_projection": {
    "exact_reverse_extraction": 19048,
    "projection_rows_verified_not_migrated_twice": 82,
    "record_count": 19049,
    "virtual_backend_json_bytes": 42612772,
    "virtual_backend_json_sha256": "0d5e49f3c352f91195043c0ddd3273bf04dac4e59865c1e7b2c0ddd34cd92269",
    "virtual_records_jsonl_bytes": 42611896,
    "virtual_records_jsonl_sha256": "c1f5d03819537e984ccef8ae8614af8381dd39835f5f62755ab2907873e8957e"
  },
  "course_id": "C70",
  "export_inventory": {
    "bytes": 2520,
    "sha256": "22a4f41f9fb5ad3144176494b8777501980de8d25074c3ed92aab6b6d6d27a20"
  },
  "export_manifest": {
    "bytes": 2170,
    "path": "backend/exports/BACKEND_EXPORT_MANIFEST.csv",
    "sha256": "18f4fa6bf3cb37a5bb908d09b2c41c076eabb2cd36540862147d54b49533351e"
  },
  "export_members": [
    {
      "bytes": 74722,
      "path": "backend/exports/AUTHORITY_REPOSITORY_MANIFEST.csv",
      "sha256": "250511d9c7bdd4259db47247a44a7de61d49e16da5e31b0072f56146b0524e06"
    },
    {
      "bytes": 19304,
      "path": "backend/exports/CONTROL_INPUT_MANIFEST.csv",
      "sha256": "8598bd8fe77d2e35cf58e02855f3a1b3a32fbb494ce994f660c003fb0a2db57b"
    },
    {
      "bytes": 136194,
      "path": "backend/exports/DECLARED_TARGET_SOURCE_CLOSURE.csv",
      "sha256": "3aec613ef9e01d92343fe2db582cfedbc05edb086e0845b4fb4f1b9ba370f499"
    },
    {
      "bytes": 39958,
      "path": "backend/exports/INCLUDE_EDGES.csv",
      "sha256": "925b32bd0ad012fd1bb4a65557c1ccd24e2c552d0af7d94a77746943cadd4adf"
    },
    {
      "bytes": 44837,
      "path": "backend/exports/SOURCE_CLOSURE_MANIFEST.csv",
      "sha256": "d1c43a0130f5b318384a3149fe7f04aafa13084aef5449ee2a8e87a77bf1d2eb"
    },
    {
      "bytes": 3380,
      "path": "backend/exports/TARGET_ADDITIONS_MANIFEST.csv",
      "sha256": "9860b900ffee52d0285ca70efa6a509757f9ac53a798e00f8236cf35dd79c6e3"
    },
    {
      "bytes": 145264,
      "path": "backend/exports/TARGET_DERIVATIVE_MANIFEST.csv",
      "sha256": "5d75dbeb99825956a9004701e40e32ca83cc48388a3dfdf30a19a274f3a20825"
    },
    {
      "bytes": 7274,
      "path": "backend/exports/artifacts.jsonl",
      "sha256": "a8184b7255feefbd45810e9fe324786521a02a5a378c660547398effd2d6ec18"
    },
    {
      "bytes": 536807,
      "path": "backend/exports/assets.jsonl",
      "sha256": "e8bcbb3baf5d8f18e823afa03790341c0e48b92fa029b95a83472041cec500ec"
    },
    {
      "bytes": 12787,
      "path": "backend/exports/build_targets.jsonl",
      "sha256": "59dc3540c5701072f4ce70c52b1e6117b445b04fa2edcb2455230ebbdcc7d326"
    },
    {
      "bytes": 444230,
      "path": "backend/exports/concepts.jsonl",
      "sha256": "659ac6411ac2c4db55f03616b75d201b31c2573e4144f776d8af8e123752940f"
    },
    {
      "bytes": 425686,
      "path": "backend/exports/corrections.jsonl",
      "sha256": "430d4e2b786be59c9f9b28dacc2634cf698f86c99343a7458b0468aa2ab40e89"
    },
    {
      "bytes": 38734,
      "path": "backend/exports/exercise_solution_links.jsonl",
      "sha256": "dc3f7e034bebc17c85fcc120074c7b7880868b37ce060ad6e1325decad419b39"
    },
    {
      "bytes": 3851,
      "path": "backend/exports/program_course_resource_edition.jsonl",
      "sha256": "f7e8622d1eb3a59a26ca4a02cbff87f09461ef2159cfb739906736c07d4b9610"
    },
    {
      "bytes": 189569,
      "path": "backend/exports/qa_events.jsonl",
      "sha256": "a80b0e23aa969c522822035471f1dc2740c97c933f9dceac446ad83b96ab6dd8"
    },
    {
      "bytes": 3109426,
      "path": "backend/exports/relations.jsonl",
      "sha256": "f2684a1005bdd110a02280989f99a050d24194a660f90f6478f2e1602f76f030"
    },
    {
      "bytes": 9855,
      "path": "backend/exports/rights.jsonl",
      "sha256": "1921edcdd87396a7d8d7a8e28f564be975cfd49b29187576c104867d520e2a62"
    },
    {
      "bytes": 5422777,
      "path": "backend/exports/segment_locale_mappings.jsonl",
      "sha256": "b7157cc36c515876a8a00689df33a9bbc22aae553f6a4680b258414b18b048ad"
    },
    {
      "bytes": 4580089,
      "path": "backend/exports/segments.jsonl",
      "sha256": "adee54736395ff9e653168801a02aa9a94a94b21e82c764ac173fb0572d57ca4"
    },
    {
      "bytes": 6034,
      "path": "backend/exports/summary.json",
      "sha256": "138c1641ffe819269e1291d5dd98eb334ed5b8f4a3f5ec394dcaf56fdbb61117"
    },
    {
      "bytes": 406129,
      "path": "backend/exports/terms.jsonl",
      "sha256": "8edb577923b7f3236131a54531b534104c62804df3994dc0601e6cef5fcf6fc5"
    },
    {
      "bytes": 1224535,
      "path": "backend/exports/unit_locale_mappings.jsonl",
      "sha256": "191ba16ce32ee0d9b4442be4de47d5c919f2cdaa0acb7690228424d8c1f2377f"
    },
    {
      "bytes": 1144114,
      "path": "backend/exports/units.jsonl",
      "sha256": "57fe5f2793bf5efc5d047cc20115f5271c5db025c9a5897c9151d02f63326f4d"
    }
  ],
  "migration_id": "r012-applied-combinatorics-id-to-v1",
  "migration_mode": "lossless additive one-common-record-per-native-record adapter",
  "migration_receipt": {
    "bytes": 13671,
    "path": "backend/migrations/applied-combinatorics-id-v1/MIGRATION_RECEIPT.json",
    "sha256": "923781c83710d9f79759090cd97d8e751f17f5f47916f002f4885e3ffcde01cb"
  },
  "native_record_counts": {
    "artifact": 10,
    "asset": 406,
    "concept": 701,
    "correction": 354,
    "course": 1,
    "edition": 2,
    "program": 1,
    "qa_event": 171,
    "relation": 6334,
    "resource": 1,
    "rights": 6,
    "segment": 3806,
    "segment_locale": 3806,
    "term": 633,
    "unit": 1408,
    "unit_locale": 1408
  },
  "native_target_edition": {
    "id": "r012-id-draft-20260820",
    "release_claim": "complete machine-checked Indonesian draft; no human review claimed",
    "status": "draft",
    "translation_state": "draft"
  },
  "projection": {
    "common_virtual_backend_materialized": false,
    "native_bodies_copied": false,
    "native_export_hashes_replayed": true,
    "native_ids_preserved": true,
    "specialized_exercise_projection_double_counted": false
  },
  "schema": "c70-ledger-references/1",
  "source_edition": {
    "archive_bytes": 214376658,
    "archive_sha256": "8ff7b319bb213777f29e91665fbd3c9d0bc81de56fb0b2b6cd9148652dfee95a",
    "commit": "33b20df670d1f8d98266cd2f4a287a79b01649ea",
    "id": "r012-upstream-33b20df670d1",
    "tree": "a8e604cc80fbb5e1a312fa26baab2b17d2975b77"
  }
}
