{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-09T20:13:16.030Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC1522",
  "document": {
    "abstract": "This memo describes an extension to the message format defined in RFC 1521, to allow the representation of character sets other than ASCII in RFC 822 (STD 11) message headers. The extensions described were designed to be highly compatible with existing Internet mail handling software, and to be easily implemented in mail readers that support RFC 1521.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "authors": [
      {
        "name": "Keith Moore"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "docId": "RFC1522",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "docLabel": "IETF RFC 1522",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "docNumber": "1522",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "docTitle": "MIME (Multipurpose Internet Mail Extensions) Part Two: Message Header Extensions for Non-ASCII Text",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "doi": "10.17487/RFC1522",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "href": "https://doi.org/10.17487/RFC1522",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "keywords": [
      "Email"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Email",
        "Character"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T20:13:16.030Z",
      "version": "extractDocs.js@commit:5562e9e0fe55"
    },
    "pages": "10",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "publicationDate": "1993-09-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "references": {
      "bibliographic": [
        "RFC1521",
        "RFC822",
        "RFC1340"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=3 proseBlocks=5 skippedAnchorBlocks=4",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc1522/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
      "updated": "2026-10-09T19:40:56.971Z",
      "version": "extractDocs.js@commit:83a3bfbb26ee"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "errataExist": true,
      "errataExist$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/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc1522",
        "https://www.rfc-editor.org/errata_search.php?rfc=1522",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc1522.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.972Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "statusNote": "Draft Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.971Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "supersededBy": [
        "RFC2045",
        "RFC2046",
        "RFC2047",
        "RFC2048",
        "RFC2049"
      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.972Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      },
      "supersedes": [
        "RFC1342"
      ],
      "supersedes$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc1522/",
        "updated": "2026-10-09T19:40:56.972Z",
        "version": "extractDocs.js@commit:83a3bfbb26ee"
      }
    }
  }
}