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      "scope": {
        "description": "The record is Vernam's sole-author 1926 paper and its telegraph cipher system. It is not treated as a proof of perfect secrecy, a sole-origin claim for every one-time-pad concept or a replacement for Shannon's later information-theoretic analysis.",
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      "statement": "# Vernam: cipher printing telegraph systems\n\nDescribed an automatic printing-telegraph cipher that combines message signals with a key tape for enciphering and deciphering, together with practical operating arrangements.\n\n## Scientific scope\n\nThe record is Vernam's sole-author 1926 paper and its telegraph cipher system. It is not treated as a proof of perfect secrecy, a sole-origin claim for every one-time-pad concept or a replacement for Shannon's later information-theoretic analysis.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nG. S. Vernam\n\nThe named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.\n\n\n\n## Original sources\n\n- [CiNii record for cipher printing telegraph systems](https://cir.nii.ac.jp/crid/1360292621421565568)\n- [IEEE-permitted reprint of Vernam cipher paper](https://www.cryptomuseum.com/crypto/usa/telekrypton/files/vernam_1926.pdf)\n",
      "summary": "Described an automatic printing-telegraph cipher that combines message signals with a key tape for enciphering and deciphering, together with practical operating arrangements.",
      "title": "Vernam: cipher printing telegraph systems"
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    "id": "vernam-cipher-printing-telegraph-1926",
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    "revision": 1,
    "title": "Vernam: cipher printing telegraph systems",
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    "track": "METHOD",
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    "what_changed": "Described automatic printing-telegraph enciphering by combining message and key signals.",
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      {
        "title": "CiNii record for cipher printing telegraph systems",
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