{
  "fileFormatID": 3957,
  "version": "6",
  "formatName": "3DM 6",
  "formatDescription": "The 3DM (openNURBS) format is a 3D model representation based on non-uniform rational B-Splines (NURBS). The file format is defined by an open source C++ toolkit that reads and writes openNURBS models.",
  "formatTypes": "Model",
  "formatNote": null,
  "lastUpdatedDate": "02 Dec 2025",
  "formatSourceDate": "02 Dec 2025",
  "identifiers": [
    {
      "identifierText": "fmt/2082",
      "identifierType": "PUID"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 3445,
      "name": "3DM 6",
      "note": "BOF, offset 0, maximum offset 0: BOF: '3D Geometry File Format       6'",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
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          "endianness": null,
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      ],
      "provenance": "v.122: new signature. Submitted by Preservica."
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "3dm",
      "signatureType": "File extension"
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}