{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-13T18:59:20.225Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC4479",
  "document": {
    "abstract": "This document defines the underlying presence data model used by Session Initiation Protocol (SIP) for Instant Messaging and Presence Leveraging Extensions (SIMPLE) presence agents. The data model provides guidance on how to map various communications systems into presence documents in a consistent fashion. [STANDARDS-TRACK]",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "authors": [
      {
        "name": "Jonathan Rosenberg"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docId": "RFC4479",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docLabel": "IETF RFC 4479",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docNumber": "4479",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "A Data Model for Presence",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC4479",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC4479",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "keywords": [
      "Simple",
      "SIP"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "pages": "35",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2006-07-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "references": {
      "bibliographic": [
        "RFC2778",
        "RFC3261",
        "RFC3859",
        "RFC3966",
        "RFC2533",
        "RFC3840",
        "RFC3761",
        "RFC4122",
        "RFC3856",
        "RFC4480",
        "RFC4119",
        "orphan/RFC4479/h:a2f014d2",
        "orphan/RFC4479/h:50169bec",
        "orphan/RFC4479/h:be84436f",
        "orphan/RFC4479/h:e34014ae",
        "orphan/RFC4479/h:e60396f1",
        "orphan/RFC4479/h:1a7f70fb",
        "orphan/RFC4479/h:b46652af"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=28 proseBlocks=32 skippedAnchorBlocks=29",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "normative": [
        "RFC3863",
        "RFC3841",
        "RFC4234",
        "RFC3688",
        "W3C.xml.20040204",
        "W3C.xmlschema-1.20041028",
        "W3C.xmlschema-2.20041028",
        "RFC2277",
        "RFC2119"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [
          "RFC3863",
          "RFC3841",
          "RFC4234",
          "RFC3688",
          "W3C.xml.20040204",
          "W3C.xmlschema-2.20041028",
          "RFC2277",
          "RFC2119",
          "orphan/RFC4479/h:75be5b9e"
        ],
        "overridden": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:59:20.225Z",
        "version": "extractDocs.js@commit:8ad844f404e0"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4479/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
      "updated": "2026-10-13T18:21:37.749Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4479",
        "https://www.rfc-editor.org/errata_search.php?rfc=4479"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4479/",
        "updated": "2026-10-13T18:21:37.749Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    }
  }
}