Library of Congress >> MARC >> Authority >> 01X-09X  >> 024

024 - Other Standard Identifier (R)


MARC 21 Authority - full
May 2019

First Indicator Second Indicator
Type of standard number or code
7 - Source specified in subfield $2
8 - Unspecified type of standard number or code

Undefined
# - Undefined


Subfield Codes
  • $a - Standard number or code (NR)
  • $c - Terms of availability (NR)
  • $d - Additional codes following the standard number or code (NR)
  • $q - Qualifying information (R)
  • $z - Canceled/invalid standard number or code (R)
  • $0 - Authority record control number or standard number (NR)
  • $1 - Real World Object URI (NR)
  • $2 - Source (NR)
  • $6 - Linkage (NR)
  • $8 - Field link and sequence number (R)

FIELD DEFINITION AND SCOPE

Standard number or code or URI associated with the entity named in the 1XX field which cannot be accommodated in another field (e.g., fields 020 (International Standard Book Number) and 022 (International Standard Serial Number)).

The source of the standard number or code or URI is identified in subfield $2 (Source). It is recommended to identify a source for standard numbers or codes in $a; however, indicating source of a URI in $0 or $1 is optional when there is no $a. When identifiers are from different source vocabularies they should be recorded in separate occurrences of the field.


GUIDELINES FOR APPLYING CONTENT DESIGNATORS

INDICATORS

First Indicator - Type of standard number or code

7 - Source specified in subfield $2
8 - Unspecified type of standard number or code

Second Indicator - Undefined

Contains a blank (#).

SUBFIELD CODES

$a - Standard number or code

$c - Terms of availability

Terms of availability and/or qualifying information about availability.

$d - Additional codes following the standard number or code

Any optional digits carried to the right of the number or code.

$q - Qualifying information

A brief statement of qualifying information concerning the item associated with a number being recorded in subfield $a or $z.

$z - Canceled/invalid standard number or code

If a valid number or code of the same type is not known, subfield $z may appear alone in field 024.

$0 - Authority record control number or standard number

A machine actionable and parseable URI that identifies a name or label for an entity. When dereferenced, the URI points to information describing that name. Note: Non-machine dereferenceable identifiers in the form of alphanumeric strings are recorded in subfield $a.

See description of this subfield in Appendix A: Control Subfields.

$1 - Real World Object URI

See description of this subfield in Appendix A: Control Subfields.

$2 - Source

MARC code that identifies the source of the identifiers. Used only when the first indicator contains value 7 (Source specified in subfield $2). Code from: Standard Identifier Source Codes.

$6 - Linkage

See description of this subfield in Appendix A: Control Subfields.

$8 - Field link and sequence number

See description of this subfield in Appendix A: Control Subfields.

EXAMPLES

024 7#$aT-345246800-1$2iswc
024 7#$a0A9-2002-12B4A105-6$2istc
024 7#$a0000000121491740$2isni
[ISNI for Ruth Rendell]
010 ##$an 79034525
024 7#$a500010879$0http://vocab.getty.edu/ulan/500010879$1http://vocab.getty.edu/ulan/500010879-agent$2gettyulan

INPUT CONVENTIONS

Structure - Other Standard Identifiers are unique, permanent and internationally recognized alphanumeric codes used to identify entities. The codes may be defined by the ISO (International Organization for Standardization) and assigned by designated agencies. Some examples of these identifiers include the ISTC (International Standard Text Code), the ISWC (International Standard Musical Work Code), and the ISAN (International Standard Audiovisual Number). The structure of these numbers is determined by the agencies formulating them.


CONTENT DESIGNATOR HISTORY

$q - Qualifying information [NEW, 2013]
$0 - Authority record control number or standard number [NEW, 2019]
$1 - Real World Object URI [NEW, 2019]
$2 - Source of number or code [RENAMED, 2019]

Library of Congress >> MARC >> Authority >> 01X-09X  >> 024
(05/15/2019)
Contact Us