{
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    "abstract": "The IETF Standards Process requires that all normative references for a document be at the same or higher level of standardization. RFC 2026 section 9.1 allows the IESG to grant a variance to the standard practices of the IETF. This document explains why the IESG is considering doing so for the revised version of the BGP-4 specification, which refers normatively to RFC 2385, \"Protection of BGP Sessions via the TCP MD5 Signature Option\". RFC 2385 will remain at the Proposed Standard level. This memo provides information for the Internet community.",
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    "authors": [
      {
        "name": "Steven Bellovin"
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      {
        "name": "Alex D. Zinin"
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      "confidence": "high",
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      "confidence": "high",
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      "confidence": "high",
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    "doi": "10.17487/RFC4278",
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      "confidence": "high",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
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      "source": "resolved",
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      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
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      "source": "parsed",
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      "confidence": "high",
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      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4278/",
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    "publicationDate": "2006-01-01",
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      "confidence": "high",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4278/",
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      "bibliographic": [
        "RSA.crypto.v2n2.1996",
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        "RFC1321",
        "RFC2026",
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        "RFC2246",
        "RFC2385",
        "RFC2401",
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        "orphan/RFC4278/h:14c3fe92",
        "orphan/RFC4278/h:f5afe202",
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        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=15 proseBlocks=18 skippedAnchorBlocks=17",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
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        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4278/",
        "updated": "2026-10-16T15:45:39.939Z",
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        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
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        "source": "parsed",
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      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4278/",
        "updated": "2026-10-16T15:45:39.939Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
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        "source": "parsed",
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        "updated": "2026-10-16T15:45:39.939Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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        "confidence": "high",
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        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4278/",
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