{
  "selected_unique_sequences": 1000000,
  "eligible_unique_sequences": 1316099,
  "target": 1000000,
  "target_met": true,
  "sources": {
    "afdb_bulk": 897764,
    "pdb": 102236
  },
  "length_bins": {
    "1-256": 693956,
    "1025-2046": 7408,
    "2047+": 65,
    "257-512": 224522,
    "513-1024": 74049
  },
  "total_residues": 233284471,
  "selection": "All eligible unique PDB sequences first; fill to one million by seed-17 sequence-hash order from AFDB bulk. Exact duplicates prefer PDB.",
  "clustering": "AFDB source cluster labels retained; no joint PDB/AFDB reclustering or benchmark exclusions claimed.",
  "source_revision": "a7ededeb7caeaef3892f40f2e4df3bb9236b02f8",
  "embeddings": "pilot only; production cache pending",
  "coordinate_verified_sequences": 1000000,
  "selected_distinct_afdb_clusters": 898096,
  "source_record_counts": {
    "afdb_bulk": 1214204,
    "pdb": 457015
  },
  "exact_duplicate_records": 355120,
  "source_overlap_unique_sequences": 321,
  "unsupported_nominal_encoder_length_count": 65
}