{
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  "docId": "RFC7043",
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    "abstract": "48-bit Extended Unique Identifier (EUI-48) and 64-bit Extended Unique Identifier (EUI-64) are address formats specified by the IEEE for use in various layer-2 networks, e.g., Ethernet. This document describes two new DNS resource record types, EUI48 and EUI64, for encoding Ethernet addresses in the DNS. This document describes potentially severe privacy implications resulting from indiscriminate publication of link-layer addresses in the DNS. EUI-48 or EUI-64 addresses SHOULD NOT be published in the public DNS. This document specifies an interoperable encoding of these address types for use in private DNS namespaces, where the privacy concerns can be constrained and mitigated.",
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    "authors": [
      {
        "name": "Joe Abley"
      }
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      "confidence": "high",
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      "updated": "2026-10-16T20:45:36.530Z",
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    "docNumber": "7043",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
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      "updated": "2026-10-16T20:45:36.530Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
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    "docTitle": "Resource Records for EUI-48 and EUI-64 Addresses in the DNS",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-16T20:45:36.530Z",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
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      "source": "parsed",
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      "updated": "2026-10-16T20:45:36.530Z",
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    "doi": "10.17487/RFC7043",
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      "confidence": "high",
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      "updated": "2026-10-16T20:45:36.530Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
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    "href": "https://doi.org/10.17487/RFC7043",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
      "updated": "2026-10-16T20:45:36.530Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
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    "keywords": [
      "Ethernet"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
      "updated": "2026-10-16T20:45:36.530Z",
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    "pages": "8",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
      "updated": "2026-10-16T20:45:36.530Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
    },
    "publicationDate": "2013-10-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
      "updated": "2026-10-16T20:45:36.530Z",
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    "publisher": "IETF",
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      "source": "parsed",
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      "bibliographic": [
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        "orphan/RFC7043/h:5e285427"
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      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=8 proseBlocks=11 skippedAnchorBlocks=9",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
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        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
      "normative": [
        "RFC1034",
        "RFC1035",
        "RFC2119",
        "RFC7042",
        "orphan/RFC7043/h:c2881d84",
        "orphan/RFC7043/h:92d56f81"
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      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
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    "resolvedHref": "https://www.rfc-editor.org/info/rfc7043/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
      "updated": "2026-10-16T20:45:36.531Z",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
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      "errataExist": false,
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        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "statusNote": "Informational",
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7043/",
        "updated": "2026-10-16T20:45:36.531Z",
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