{
 "id": "hdf4",
 "name": "HDF4",
 "category": "scientific",
 "identifiers": {
  "puid": [
   "fmt/1041"
  ],
  "wikidata": [
   "Q63065200",
   "Q50419724"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "0e031301",
    "notes": "HDF 1-4"
   }
  ],
  "extensions": [
   "hdf",
   "h4",
   "hdf4",
   "he4"
  ],
  "mime": [
   "application/x-hdf",
   "application/vnd.hdfgroup.hdf4"
  ],
  "loc_fdd": [
   "fdd000228"
  ],
  "signatures": [
   {
    "name": "HDF 1-4",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "0e031301"
     }
    ]
   }
  ]
 },
 "status": "readable",
 "summary": "HDF is a data model, library, and file format for storing and managing data.",
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/HDF4",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/1041",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1041",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q63065200",
   "url": "https://www.wikidata.org/wiki/Q63065200",
   "kind": "wiki"
  },
  {
   "name": "Wikidata Q50419724",
   "url": "https://www.wikidata.org/wiki/Q50419724",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "ffw",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "tools": [
  {
   "name": "PhotoRec",
   "url": "http://www.cgsecurity.org/wiki/PhotoRec",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true
  }
 ],
 "version": "1-4",
 "aliases": [
  "NCSA Hierarchical Data Format"
 ],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}