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  "document": {
    "abstract": "THE Stereoscope is older than Photography.",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "articleType": "orig-research",
    "articleType$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "authors": [
      "Wm. V. D. Kelley"
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "copyright": {
      "holder": "Society of Motion Picture and Television Engineers, Inc.",
      "holder$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      },
      "year": "1923",
      "year$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "copyright$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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    "docId": "10.5594-jj00021",
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      "confidence": "high",
      "note": "Derived from DOI 10.5594/jj00021",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docLabel": "Transactions of the Society of Motion Picture Engineers ( Volume: 7, Issue: 17, 1923)",
    "docLabel$meta": {
      "confidence": "medium",
      "note": "Composed from journal title, volume, issue and date",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docTitle": "Stereoscopic Pictures",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "docType": "Journal Article",
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      "confidence": "high",
      "note": "journal_metadata XML — SMPTE journal paper",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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    "doi": "10.5594/jj00021",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "href": "https://doi.org/10.5594/jj00021",
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      "confidence": "high",
      "note": "Constructed from DOI 10.5594/jj00021",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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    "issn": {
      "print": "0096-6460",
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        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
    },
    "issn$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "journalAcronym": "MIJR",
    "journalAcronym$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "number": "17",
    "number$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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    "pages": "149–153",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publicationDate": "1923-01-01",
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      "confidence": "low",
      "note": "Month/day absent in source — padded to 01-01",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publisher": "SMPTE",
    "publisher$meta": {
      "confidence": "high",
      "note": "Normalised to registry \"SMPTE\" convention from publisher-name (SMPTE)",
      "source": "inferred",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
    },
    "publisherLocation": {
      "city": "White Plains, NY",
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        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      },
      "country": "USA",
      "country$meta": {
        "confidence": "high",
        "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
      }
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    "publisherLocation$meta": {
      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Mapped from article_status=\"active\"",
        "source": "parsed",
        "updated": "2026-05-22T23:54:08.922Z",
        "version": "smpte-journal-issue-xml@v1"
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    "volume": "7",
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      "confidence": "high",
      "note": "Parsed from journal_metadata XML (_source/SMPTE/APTARA/METADATA and PDFs ALL CONTENT/Journal/smptej_7_17/MIJR16Vol7No17.xml)",
      "source": "parsed",
      "updated": "2026-05-22T23:54:08.922Z",
      "version": "smpte-journal-issue-xml@v1"
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}