{
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  "formatName": "WebM",
  "version": null,
  "formatDescription": "WebM is a media file format, developed by Google based on the Extensible Binary Meta Language.",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "28 Aug 2013",
  "formatProvenance": "http://www.webmproject.org/docs/container/",
  "formatSourceDate": "28 Aug 2013",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Video",
  "formatFamilies": "EBML",
  "identifiers": [
    {
      "identifierText": "fmt/573",
      "identifierType": "PUID"
    },
    {
      "identifierText": "video/webm",
      "identifierType": "MIME"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 911,
      "name": "WebM",
      "note": "1A45DFA3(EBML Header){0-32}4282847765626D4287(doctype = webm)",
      "byteSequences": [
        {
          "positionType": "Absolute from BOF",
          "offset": 0,
          "maxOffset": 0,
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        }
      ],
      "provenance": "http://matroska.org/technical/specs/index.html http://www.webmproject.org/code/specs/container/"
    }
  ],
  "externalSignatures": [
    {
      "externalSignature": "webm",
      "signatureType": "File extension"
    }
  ],
  "relationships": [],
  "supportedBy": [
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  ],
  "developedBy": [
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  ],
  "submittedBy": [
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}