Contents   Fixed field   Access points   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx   Control subfields

857  Electronic Archive Location and Access (R)

Record Type

BIB, LHR

Input Standards

Field (Full/Minimal)
Optional/Optional
1st Indicator  Access method
blank character No information provided
1 FTP
4 HTTP
7 Method specified in subfield ǂ2
2nd Indicator  Relationship
blank character No information provided
0 Resource
1 Version of resource
2 Related resource
3 Component part(s) of resource
4 Version of component part(s) of resource
8 No display constant generated
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards (Full/Minimal)
ǂb Name of archiving agency (NR) Optional/Optional
ǂc Name of Web archive or digital archive repository (NR) Optional/Optional
ǂd Date range of archived material (NR) Optional/Optional
ǂe Data provenance (R) [BIB]
Optional/Optional
ǂf Archive completeness (NR) Optional/Optional
ǂg Persistent identifier (R) Optional/Optional
ǂh Non-functioning Uniform Resource Identifier (R) Optional/Optional
ǂl Standardized information governing access (R) Optional/Optional
ǂm Contact for access assistance (R) Optional/Optional
ǂn Terms governing access (R) Optional/Optional
ǂq Electronic format type (R) Optional/Optional
ǂr Standardized information governing use and reproduction (R) Optional/Optional
ǂs File size (R) Optional/Optional
ǂt Terms governing use and reproduction (R) Optional/Optional
ǂu Uniform Resource Identifier (R) Required if applicable/Required if applicable
ǂx Nonpublic note (R) Optional/Optional
ǂy Link text (R) Optional/Optional
ǂz Public note (R) Optional/Optional
ǂ2 Access method (NR) Optional/Optional
ǂ3 Materials specified (NR) Required if applicable/Required if applicable
ǂ5 Institution to which field applies (NR) Required if applicable/Required if applicable
ǂ6 Linkage (NR) System supplied/System supplied
ǂ7 Access status (NR) Optional/Optional
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

Information needed to locate and access an electronic resource from a Web archive or a digital archive repository. Use field 857 in a bibliographic record for a resource when that resource or a subset of it is stored in a Web archive or digital repository. In addition, use field 857 to provide location and access to a digitized archived version of a tangible resource (e.g., a book or CD-ROM described in the record), or a related archived resource.

Field 857 is repeated when an electronic resource has been stored in more than one Web archive or digital archive repository.

The field may be used in addition to or in place of field 856 if it is desired to provide additional information about archived resources beyond what is possible in field 856.

1st Indicator

Access method. The access method to the archived electronic resource. If the archived resource is available by more than one access method, repeat the field with data appropriate to each method. The methods defined are the main TCP/IP (Transmission Control Protocol/Internet Protocol) protocols.

When recording a Uniform Resource Identifier (URI) in subfield ǂu, the value corresponds to the access method (URI scheme) which is also the first element in the URI string.

The access methods with indicator values defined here, as well as those with coded values used in subfield ǂ2, are specified in Uniform Resource Locators (URL), a product of the Uniform Resource Identifiers Working Group of the Internet Engineering Task Force (IETF). The Internet Assigned Numbers Authority (IANA) maintains a registry of URL schemes and defines the syntax and use of new schemes.

 
blank character

No information provided. No information about the access method is provided. Value blank may be used if a URN alone is recorded in subfield ǂu.

 
1

FTP. Access to the resource is through File Transfer Protocol (FTP).

 
4

HTTP. Access to the electronic resource is through Hypertext Transfer Protocol (HTTP).

 
7

Method specified in subfield ǂ2 . Access to the resource is through a method other than the defined values and for which an identifying code is given in subfield ǂ2.

2nd Indicator

Relationship. Relationship between an archived electronic resource at the location identified in field 857 and the resource described in the record as a whole.

 
blank character

No information provided. No information is provided about the relationship of the archived electronic resource identified in field 857 to the bibliographic resource described by the record as a whole. Prefer use of the appropriate 2nd indicator numeric value instead of value blank.

 
0

Resource. Record describes an archived electronic resource. Electronic location in field 857 is for the complete archived electronic resource described by the record as a whole. If the electronic location in field 857 is for one or more archived component parts of the resource represented by the record as a whole, use 2nd indicator value 3.

 
1

Version of resource. Record describes a tangible resource (e.g., a printed book or a CD-ROM). Electronic location in field 857 is for an archived electronic version of the resource described by the record as a whole. In this case, the bibliographic record itself does not represent the archived electronic resource but an archived electronic version is available.

 
2

Related resource. The electronic location in field 857 is for an archived electronic resource that has a clear, specific, and direct bibliographic relationship to the bibliographic resource described by the record as a whole but is not a component part of the resource. For resources that have only a subject relationship to the resource described, use 6xx fields. When there is uncertainty whether a resource may be a component part of the whole or a related resource, prefer 2nd indicator value 2.

Use subfield ǂ3 to further characterize the relationship between the archived electronic resource identified in field 857 and the resource represented by the bibliographic record. 

   
 
3

Component part(s) of resource. Record describes an archived electronic resource. Electronic location in field 857 is for one or more archived component parts of the complete electronic resource described by the record as a whole. The component parts are portions of the resource, such as a table of contents or a sample chapter. Consider each of multiple fields 857 that add up to a complete representation of the archived networked electronic resource to be a component part. When appropriate, use subfield ǂ3 to specify the component part(s) to which the field applies. When there is uncertainty whether a resource may be a component part of the whole or a related resource, use 2nd indicator value 2.

 
4

Version of component part(s) of resource. Record describes a tangible resource (e.g., a printed book or a CD-ROM). Electronic location in field 857 is for an archived electronic version of one or more component parts of the resource described by the record as a whole. The component parts are versions of portions of the resource, such as a table of contents or a sample chapter. When appropriate, use subfield ǂ3 to specify the component part(s) to which the field applies. When there is uncertainty whether a resource may be a component part of the whole or a related resource, prefer 2nd indicator value 2.

 
8

No display constant generated. The value that specifies that a display constant is not generated.

Subfields

 
ǂb Name of archiving agency

Agency responsible for the Web archive or digital archive repository.

857 4 0 ǂb Internet Archive ǂd 2003-12-18- ǂf saved 21238 times as of 2022-03-15 ǂn Free access ǂu https://web.archive.org/web/*/hs.fi
ǂc Name of Web archive or digital archive repository

The name by which the Web archive or digital archive repository is known.

857 4 0 ǂb National Library of Finland ǂc The Finnish Web Archive ǂd 2006-01-16- ǂf saved 9431 times as of 2022-03-14 ǂn Onsite access in legal deposit libraries ǂq text/html ǂu https://verkkoarkisto.kansalliskirjasto.fi/wayback/*/www.hs.fi
ǂd Date range of archived material

Intended primarily for archived electronic continuing resources and other dynamic resources to provide information about the range of dates during which the archived material was issued. The dates are specified according to Extended Date/Time Format (EDTF). The start date of the archived material should always be mentioned when known; the end date only if the material described in the record is no longer being archived.

Multiple date ranges can be provided in a single subfield ǂd by separating them with ";". The reason for these gaps, if known, may be provided in subfield ǂx or subfield ǂz.

857 4 3 ǂb Internet Archive ǂd 1964/2008;2011/..
857 4 0 ǂb HathiTrust Digital Library ǂd 2020-01/2023-02
ǂe Data provenance

For information about subfield ǂe, see the Data Provenance Subfields section of Control Subfields.

ǂf Archive completeness

Intended primarily for archived electronic continuing resources or other archived dynamic resources, information about how often or how many times an electronic continuing resource has been harvested. This information enables the user to infer the archived material’s completeness for the date range in subfield ǂd when coupled with the resource’s frequency. If providing the number of times a resource has been harvested, provide the date this information was obtained.

857 4 1 ǂb Scholars Portal ǂf Complete
857 4 3 ǂb Internet Archive ǂf Saved multiple times per day as of 2022-09-22
857 4 1 ǂb Library of Congress ǂf Saved 14150 times since 1997-01-01 as of 2023-01-31
ǂg Persistent identifier

Persistent identifier (PID) which enables search and retrieval of a resource from a Web archive or digital archive repository using existing Internet protocols. It is assigned to the resource for automated access and other resolution services by a PID resolver. PIDs should be provided as actionable hyperlinks (e.g., HTTP URI format).

If a PID resolves to more than one URI, these URIs may be provided in the same field 857, with repeated subfields ǂu.

857 4 1 ǂb Bibliothèque nationale de France ǂc Gallica ǂd 1917-1917 ǂf incomplete ǂg https://gallicaintramuros.bnf.fr/ark:/12148/cb34471903t/date
ǂh Non-functioning Uniform Resource Identifier

URI for any archive or repository that has ceased to exist.

Subfield ǂh may be repeated if there is more than one non-functioning URI. A note on the status change (including the date) may be added in either subfield ǂx or subfield ǂz, depending on the local policy.

ǂl Standardized information governing access

Standardized information about the access status of a resource. The information may be in the form of a value from a controlled vocabulary, or a URI. If the information is a value from a controlled vocabulary, it is preceded by the appropriate value from the list of Access Restriction Term Source Codes, enclosed in parentheses. When the information is given in the form of a Web retrieval protocol (e.g., HTTP URI), no preceding parenthetical is used.

This subfield is intended to contain information that is equivalent to the data recorded in field 506 subfields ǂf, ǂu, and ǂ2.

ǂm Contact for access assistance

The contact person at the host specified in subfield ǂb. For addresses relating to the content of the resource itself (i.e., the item represented by the title recorded in field 245) rather than access assistance, use field 270. Also use field 270 if the address is the same. Subfield ǂm is unlikely to be used in current cataloging.

ǂn Terms governing access

Textual information about the access status of a resource.

This subfield is intended to contain information that is equivalent to the data recorded in field 506 subfield ǂa.

857 4 0 ǂb Library of Congress ǂd 2013- ǂn Onsite access only ǂg http://hdl.loc.gov/loc.gdc/ejournal.021602 ǂu http://hdl.loc.gov/loc.gdc/ejournal.021602 ǂ7 1
ǂq Electronic format type

Identification of the electronic format type and version. Electronic format type should be specified with a code from the list of registered Internet Media Types (MIME types), taken from IANA Media Types.

If necessary (e.g., in order to specify a file format version to support access or digital preservation), additional information, such as PRONOM Unique Identifier (PUID) codes, may be included in addition to the information provided by the MIME Type by repeating subfield ǂq.

857 4 0 ǂb Internet Archive ǂd 2011-2017 ǂf saved 45 ǂq https://www.nationalarchives.gov.uk/PRONOM/fmt/96 ǂu https://web.archive.org/web/*/http://www.landesbioscience.com/journals/worm/
ǂr Standardized information governing use and reproduction

Standardized information about the use and reproduction rights of a resource. The information may be in the form of a value from a controlled vocabulary, or a URI. If the information is a value from a controlled vocabulary, it is preceded by the appropriate value from the list of Access Restriction Term Source Codes, enclosed in parentheses. When the information is given in the form of a Web retrieval protocol (e.g., HTTP URI), no preceding parenthetical is used.

This subfield is intended to contain information that is equivalent to the data recorded in field 540 subfields ǂf, ǂu, and ǂ2.

ǂs File size

The size of the file stored in the archive indicated in subfield ǂc. Size is generally expressed in terms of 8-bit bytes (megabytes, gigabytes). Subfield ǂs is unlikely to be used in current cataloging.

ǂt Terms governing use and reproduction

Textual information about the use and reproduction rights of a resource.

This subfield is intended to contain information that is equivalent to the data recorded in field 540 subfield ǂa.

ǂu Uniform Resource Identifier

The Uniform Resource Identifier (e.g., a URL or URN) provides electronic access data in a standard syntax. Use for automated access to an electronic item using one of the Internet protocols or by resolution of a persistent identifier (PID). Repeat subfield ǂu if the digital object has multiple identifiers (URIs).

URIs that no longer function to provide access to the described resource may be transferred to field 857 subfield ǂh.

For more information about subfield ǂu, see Control Subfields.

857 4 0 ǂb CLOCKSS ǂd 2016- ǂn Dark archive ǂu http://www.clockss.org/clockss/Comparative_cultural_studies
857 4 0 ǂb Internet Archive ǂc FatCat ǂd 2021- ǂf selected articles ǂq application/pdf ǂu https://fatcat.wiki/container/pv7gnxzaj5eydnvan65xus4uiy
ǂx Nonpublic note

A note pertaining to the electronic location of the source identified in the field that is in a form not adequate for public display. A nonpublic note may contain processing information about the file at the location specified.

ǂy Link text

Used for display in place of the URL in subfield ǂu. When subfield ǂy is present, applications should use the contents of subfield ǂy as the link instead of the content of subfield ǂu when linking to the destination in subfield ǂu. The use of the link text is independent of any decision concerning the second indicator value.

ǂz Public note

A note pertaining to the electronic location of the source identified in the field that is in a form adequate for public display.

857   0 ǂb Center for scientific computing - CSC ǂc National Digital Archive ǂe National Library of Finland ǂn Dark archive; consult a librarian on the use ǂq text/xml ǂu https://www.loc.gov/standards/mets/ ǂz Preservation copy of the content in the Finnish Web Archive
ǂ2 Access method

The code defined for use with 1st indicator value 7. Use subfield ǂ2 to record access methods other than the main TCP/IP protocols specified in the 1st indicator. Code from Electronic Access Methods Code List.

The data in this subfield correspond with the access schemes specified in Uniform Resource Locators (URL), a product of the Uniform Resource Identifiers Working Group of the Internet Engineering Task Force (IETF). The Internet Assigned Numbers Authority (IANA) maintains a registry of URL schemes and defines the syntax and use of new schemes.

ǂ3 Materials specified

For information about subfield ǂ3, see Control Subfields.

ǂ5 Institution to which field applies

For information about subfield ǂ5, see Control Subfields.

ǂ6 Linkage

Data that link fields when non-Latin script is entered. This subfield is system supplied and does not appear in OCLC online displays. Do not manually add subfield ǂ6. For more information about subfield ǂ6, see Control Subfields.

ǂ7 Access status

Code indicating the availability of access to the networked electronic resource, the address of which appears in subfield ǂu. Subfield ǂ7 applies to all subfields ǂu present in the field. For more information about subfield ǂ7, see Control Subfields.

The code values are:

   0 - Open access. The networked electronic resource is freely and openly accessible online to everyone, without restriction, login, or payment.
   1 - Restricted access. The networked electronic resource is not freely and openly accessible online.
   u - Unspecified
   z - Other

857 4 0 ǂ3 HathiTrust Digital Library, Full view ǂu http://catalog.hathitrust.org/api/volumes/oclc/1654047.html ǂ7 0
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

Indexing

For indexing and searching information, see Searching WorldCat Indexes, field 857.

MARC 21

For more information, including content designator history, see MARC 21 Format for Bibliographic Data, field 857.

This page last revised: October 20, 2023