{
  "actual_extension": "bt2",
  "assembly": "GRCh38 no-alt analysis set",
  "builder": "aws-indexes:metadata-backfill",
  "built_utc": "2026-05-26T21:36:38Z",
  "command": "unknown",
  "date": "2026-05-26",
  "expected_extension": "bt2",
  "id": "grch38_noalt",
  "index_base": "GRCh38_noalt_as",
  "inputs": [
    {
      "md5": "a08035b6a6e31780e96a34008ff21bd6",
      "path": "source.fa.gz"
    }
  ],
  "notes": "NCBI analysis set (UCSC-style contig names) Metadata-only backfill; index .bt2 shards unchanged from s3://genome-idx/bt; original bowtie2-build version/date/command not recorded.",
  "outputs": [
    "GRCh38_noalt_as.1.bt2",
    "GRCh38_noalt_as.2.bt2",
    "GRCh38_noalt_as.3.bt2",
    "GRCh38_noalt_as.4.bt2",
    "GRCh38_noalt_as.rev.1.bt2",
    "GRCh38_noalt_as.rev.2.bt2",
    "GRCh38_noalt_as.dict",
    "GRCh38_noalt_as.zip",
    "GRCh38_noalt_as.md5",
    "GRCh38_noalt_as.build.txt",
    "GRCh38_noalt_as.manifest.json"
  ],
  "schema_version": "1.0",
  "source": "NCBI",
  "source_urls": [
    "https://ftp.ncbi.nlm.nih.gov/genomes/all/GCA/000/001/405/GCA_000001405.15_GRCh38/seqs_for_alignment_pipelines.ucsc_ids/GCA_000001405.15_GRCh38_no_alt_analysis_set.fna.gz"
  ],
  "species": "Human",
  "threads": "unknown",
  "tool": "bowtie2-build",
  "tool_version": "unknown",
  "tool_version_output": "unknown"
}