{
  "build_assumption": "Rows are emitted grouped by backbone sequence in generator order.",
  "bundle_id": "PBAC-PEPTIDE-LEUMORPHIN-PDYN-OPIOID-ED2-FULL-BUNDLE-001",
  "canonical_row_store": "parquet",
  "catalog_id": "PBAC-PEPTIDE-LEUMORPHIN-PDYN-OPIOID-ED2-FULL",
  "completed_at_utc": "2026-06-26T14:15:43Z",
  "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": 147118,
  "first_sequence": "YGGFLRRQFKVVTRSQEDPNAYSGELFDA",
  "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": "YGGFLRRQFKVVTRSQEDPNAYSGELFYY",
  "max_shards_per_sequence": 2,
  "multi_shard_sequence_count": 9,
  "release_id": "PBAC-PEPTIDE-LEUMORPHIN-PDYN-OPIOID-ED2-FULL-V1",
  "row_schema_version": "pbac_peptide_row_v1",
  "sequence_count": 147118,
  "sha256": {
    "sequence_shard_index.jsonl.gz": "5eb7b6ca06ed9df2bdaddeaea8ff9c893b9d0cff8a15a78bb6755a9ccd2a94d0"
  },
  "shard_count": 14,
  "shard_path_rule": "shards/{shard_id}/candidates.parquet",
  "source_config_hash_sha256": "3f509e5b4566ed7fb632bd4dee5880e649b600409a923d1c57da6dce3f000b60",
  "source_row_count": 882708,
  "structure_key_version": "pbac-sk-v1"
}
