{
 "id": "openwayback-cdxj-file-format",
 "name": "OpenWayback CDXJ File Format",
 "category": "text",
 "identifiers": {
  "extensions": [
   "cdx",
   "cdxj"
  ],
  "puid": [
   "fmt/1947"
  ],
  "wikidata": [
   "Q125868433"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "214f70656e5761796261636b2d4344584a20312e30",
    "notes": "OpenWayback CDXJ"
   }
  ],
  "signatures": [
   {
    "name": "OpenWayback CDXJ",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "214f70656e5761796261636b2d4344584a20312e30"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "CDXJ is a JSON implementation of the CDX Internet Archive Index, used by OpenWayback 3.0.0 and later to index web archive contents. The index file is plain text, UTF-8 encoded.",
 "projects": [
  {
   "name": "PRONOM fmt/1947",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1947",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q125868433",
   "url": "https://www.wikidata.org/wiki/Q125868433",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "tools": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}