The digital content format descriptions accessible here provide specific information about individual formats and their characteristics. Each description provides moderately detailed information and citations. Planned for inclusion are a wide variety of formats: file formats, file-format classes, bitstream structures and encodings, and the mechanisms used to compress files or bitstreams. Inclusion of a description for a format does not imply that the format is preferred or acceptable for Library of Congress collections. [from homepage]

Prefix

loc.fdd

Keywords

file format media type

Links

Homepage Request Discussion

Contact

Missing Contact

Pattern for Local Unique Identifiers

Local identifiers in Library of Congress Format Description Document should match this regular expression:
^fdd\d+$

Example Local Unique Identifier

fdd000613   Resolve

Pattern for CURIES

Compact URIs (CURIEs) constructed from Library of Congress Format Description Document should match this regular expression:
^loc\.fdd:fdd\d+$

Example CURIE

loc.fdd:fdd000613

References

Other https://www.loc.gov/preservation/digital/formats/fddXML/fddXMLreadme.txt

Contributors

• submitter Charles Tapley Hoyt   0000-0003-4423-4370   cthoyt

A summary of the relations in the Semantic Farm schema can be found here.

In Collection

DALIA Resources Resources for modeling Open Educational Resource

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier fdd000613 is used to demonstrate the providers available for Library of Congress Format Description Document. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Additional providers curated in the Semantic Farm are listed here. These are typically inherited from Identifiers.org or Prefix Commons, and need extra curation.