{
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  "version": null,
  "formatDescription": "The JPEG 2000 Compound Image File Format is an optional file format for storing compound images using the JPEG 2000 file format family architecture. A compound image is an image that may contain scanned images, synthetic images or both, and that preferably requires a mix of continuous tone and bi-level compression methods.",
  "releaseDate": null,
  "binaryFileFormat": null,
  "formatNote": null,
  "lastUpdatedDate": "28 Aug 2012",
  "formatProvenance": null,
  "formatSourceDate": "28 Aug 2012",
  "formatDisclosure": null,
  "formatEnvironment": null,
  "formatRisk": null,
  "formatAliases": null,
  "formatTypes": "Image (Raster)",
  "formatFamilies": "JPEG 2000",
  "identifiers": [
    {
      "identifierText": "fmt/463",
      "identifierType": "PUID"
    },
    {
      "identifierText": "image/jpm",
      "identifierType": "MIME"
    }
  ],
  "internalSignatures": [
    {
      "signatureID": 721,
      "name": "JPEG 2000 Compound Image File Format",
      "note": "BOF: ....jP  ..\u2021.{4}ftypjpm",
      "byteSequences": [
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          "positionType": "Absolute from BOF",
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      "provenance": "http://www.jpeg.org/public/fcd15444-6.pdf and self generated test files"
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    {
      "externalSignature": "jpm",
      "signatureType": "File extension"
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}