The Japanese National Bibliography (JNB)

• 国立国会図書館の書誌データ (Bibliographic data of the National Diet Library) (PDF: 1.57MB) (in Japanese)

The Japanese National Bibliography (JNB) comprises standard bibliographic data for Japanese publications acquired via the legal deposit system as well as Japanese publications and foreign publications in Japanese acquired through donation, purchase, or other means.

The JNB includes print publications and packaged digital publications such as CDs and DVDs published in Japan as well as foreign publications in Japanese. Cataloging is usually completed within one month of acquisition. More than 95% of the printed monographs available commercially in Japan are recorded.

Also included are numerous publications with limited public circulation from national and municipal governments.

Bibliographic data for online publications acquired by the National Diet Library (NDL) since July 1, 2013, is available from the page "全国書誌（電子書籍・電子雑誌編）TSVファイル一覧 (Japanese National Bibliography records of e-books and e-periodicals in TSV format)" (in Japanese). The NDL acquires domestic Japanese online publications.

Newly arrived (in-process) records become searchable in NDL Search about four days after acquisition, not including materials in Asian languages and maps.

* Search results cannot be limited to only Japanese National Bibliography records or newly arrived (in-process) records.
** Bibliographic data downloaded from NDL Online does not include some entries such as the reading of titles in katakana or National Bibliography Number (JPNO).

• JNB, JNB records of e-books and e-periodicals, or newly arrived (in-process) records are searchable via the NDL Search.
• JNB records of e-books and e-periodicals are searchable one week after release in the NDL Digital Collection.
• JNB data is formatted per the NDL Dublin Core Metadata Description (DC-NDL) to be searchable in the NDL Search.
• JNB records are available for download in either JAPAN/MARC MARC21 format (MARC format (ISO 2709) or MARC tags format), DC-NDL or JSON formats from the search results details screen.
• JNB records, JNB records of e-books and e-periodicals, or newly arrived (in-process) records are delivered by RSS feed. Please see "RSS配信 (RSS delivery)" (in Japanese) for further details.

Application Programming Interfaces for search and acquisition of NDL Search metadata are available. Use the appropriate provider ID to specify metadata groups.

See NDL Search API Specifications, 国立国会図書館サーチについて > メタデータ (Metadata) page (in Japanese) and Standards for Digital Information for more information.
The complete bibliographic data or Japanese Periodicals Index data in DC-NDL (RDF) format are available upon request. Please send requests to the following division of the NDL.

Acquisitions Administration and Bibliographic Control Division
Acquisitions and Bibliography Department
National Diet Library
E-mail: bib-dl

Please include "Requesting complete bibliographic data in DC-NDL (RDF) format" in your subject line.
Please indicate in the body of your email whether you are requesting complete bibliographic data, Japanese Periodicals Index data, or both.

Further details are available in Japanese at "国立国会図書館作成書誌の全件ファイル提供について (The complete National Diet Library bibliographic data)".

Newly catalogued records and newly acquired records are available in RSS format.

• Japanese National Bibliography 
• Japanese National Bibliography records of e-books and e-magazines 
• Newly arrived (in-process) records 

"全国書誌（電子書籍・電子雑誌編）TSVファイル一覧 (JNB records of e-books and e-periodicals in TSV format)" (in Japanese) provides bibliographic data for e-books and e-periodicals acquired during the past three months. Records are updated every week on Tuesdays.

Data for e-books and e-periodicals acquired by the NDL since July 1, 2013 is available at the following URL by specifying the date:
http://iss.ndl.go.jp/data/download/digital_YYYYMMDD.tsv

For example, to view JNB records of e-books and e-periodicals acquired on July 2, 2013, enter the following URL.
http://iss.ndl.go.jp/data/download/digital_20130702.tsv

If the NDL deletes previously created bibliographic data after the e-book or e-journal has been accepted, the number of records in the file may become zero.

There are no restrictions on the use of JNB records of e-books and e-periodicals in TSV format. The NDL assumes no responsibility or liability for any actions taken as a result of using the JNB records of e-books and e-periodicals in TSV format.

• JAPAN/MARC is a machine-readable version of the Japanese National Bibliography and name authority data. Newly cataloged, corrected, or deleted records are updated weekly and available at "JAPAN/MARCデータ（毎週更新） (JAPAN/MARC Weekly Update)" (in Japanese).
• Please refer to "JAPAN/MARC Manual and Format" for details on the data format and provided elements.
• The complete JAPAN/MARC data is available upon request. Please send requests to the following division of the NDL.

Acquisitions Administration and Bibliographic Control Division
Acquisitions and Bibliography Department
National Diet Library
E-mail: bib-dl

Please include "Requesting complete JAPAN/MARC data" in your subject line.
Please indicate in the body of your email whether you are requesting JAPAN/MARC(MS) data or JAPAN/MARC(A) data.
JAPAN/MARC(MS) data contains JNB data, JAPAN/MARC(A) data contains name authority data.

Further details are available in Japanese at "書誌データの提供 > 書誌データ等の全件提供 > JAPAN/MARC全件データ提供 (About the complete JAPAN/MARC data)".