{
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  "lastModified": "2026-10-20T21:47:24.918Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC9187",
  "document": {
    "abstract": "Sliding window protocols use finite sequence numbers to determine segment placement and order. These sequence number spaces wrap around and are reused during the operation of such protocols. This document describes a way to extend the size of these sequence numbers at the endpoints to avoid the impact of that wrap and reuse without transmitting additional information in the packet header. The resulting extended sequence numbers can be used at the endpoints in encryption and authentication algorithms to ensure input bit patterns do not repeat over the lifetime of a connection.",
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      "confidence": "high",
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    "authors": [
      {
        "name": "Dr. Joseph D. Touch"
      }
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-20T21:47:24.918Z",
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    "docId": "RFC9187",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
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    "docLabel": "IETF RFC 9187",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docNumber": "9187",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docTitle": "Sequence Number Extension for Windowed Protocols",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "doi": "10.17487/RFC9187",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "href": "https://doi.org/10.17487/RFC9187",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "pages": "10",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "publicationDate": "2022-01-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
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    "references": {
      "bibliographic": [
        "ISI.IEN74",
        "RFC793",
        "RFC1034",
        "RFC1035",
        "RFC1982",
        "RFC5925",
        "RFC7323"
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      "bibliographic$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc9187/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
      "updated": "2026-10-20T21:47:24.918Z",
      "version": "extractDocs.js@commit:92f3ced618ff"
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    "status": {
      "active": true,
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
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      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc9187",
        "https://www.rfc-editor.org/errata_search.php?rfc=9187",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc9187.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9187/",
        "updated": "2026-10-20T21:47:24.918Z",
        "version": "extractDocs.js@commit:92f3ced618ff"
      }
    }
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}