{
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  "lastModified": "2026-10-13T22:26:04.768Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC6564",
  "document": {
    "abstract": "In IPv6, optional internet-layer information is encoded in separate headers that may be placed between the IPv6 header and the transport-layer header. There are a small number of such extension headers currently defined. This document describes the issues that can arise when defining new extension headers and discusses the alternate extension mechanisms in IPv6. It also provides a common format for defining any new IPv6 extension headers, if they are needed. [STANDARDS-TRACK]",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "authors": [
      {
        "name": "Suresh Krishnan"
      },
      {
        "name": "james woodyatt"
      },
      {
        "name": "Erik Kline"
      },
      {
        "name": "James Hoagland"
      },
      {
        "name": "Manav Bhatia"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docId": "RFC6564",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docLabel": "IETF RFC 6564",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docNumber": "6564",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docTitle": "A Uniform Format for IPv6 Extension Headers",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "doi": "10.17487/RFC6564",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "href": "https://doi.org/10.17487/RFC6564",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "pages": "6",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publicationDate": "2012-04-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "references": {
      "normative": [
        "RFC2119",
        "RFC2460",
        "orphan/RFC6564/h:96faa55f"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc6564/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
      "updated": "2026-10-13T22:26:04.768Z",
      "version": "extractDocs.js@commit:fd871efde64d"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "amends": [
        "RFC2460"
      ],
      "amends$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc6564",
        "https://www.rfc-editor.org/errata_search.php?rfc=6564"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6564/",
        "updated": "2026-10-13T22:26:04.768Z",
        "version": "extractDocs.js@commit:fd871efde64d"
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}