{
  "build_assumption": "Rows are emitted grouped by backbone sequence in generator order.",
  "bundle_id": "PBAC-PEPTIDE-PTHRP1-34-PTH1R-ED2-FULL-BUNDLE-001",
  "canonical_row_store": "parquet",
  "catalog_id": "PBAC-PEPTIDE-PTHRP1-34-PTH1R-ED2-FULL",
  "completed_at_utc": "2026-06-23T11:22:20Z",
  "entry_semantics": "Each entry maps one backbone sequence to every candidate shard that may contain exact asset rows for that sequence. The Parquet shard remains canonical.",
  "expected_sequence_count": 203168,
  "first_sequence": "AVSEHQLLHDKGKSIQDLRRRFFLHHLIAEIHTA",
  "generator_version": "0.1.0",
  "index_builder_version": "0.1.0",
  "index_file": "sequence_shard_index.jsonl.gz",
  "index_schema_version": "pbac_sequence_shard_index_manifest_v1",
  "index_type": "sequence_to_candidate_shards",
  "last_sequence": "AVSEHQLLHDKGKSIQDLRRRFFLHHLIAEIHYY",
  "max_shards_per_sequence": 2,
  "multi_shard_sequence_count": 51,
  "release_id": "PBAC-PEPTIDE-PTHRP1-34-PTH1R-ED2-FULL-V1",
  "row_schema_version": "pbac_peptide_row_v1",
  "sequence_count": 203168,
  "sha256": {
    "sequence_shard_index.jsonl.gz": "20faac7b536d50ad6eabceee5e3eecadc15e1a0b70109abb16529d2afacf8d94"
  },
  "shard_count": 77,
  "shard_path_rule": "shards/{shard_id}/candidates.parquet",
  "source_config_hash_sha256": "3bd317a2cc3a5ae7ea9b2e7371f5a05f132e024d3981207d91c8228b5d3fa2f1",
  "source_row_count": 1219008,
  "structure_key_version": "pbac-sk-v1"
}
