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4.1.1.2 - The repository shall have a record of the Content Information and the Information Properties that it will preserve.

Merritt has no prescriptive eligibility requirements for content contribution, beyond the ability to identify the set of files that collectively compose the submission package.  Merritt customers can submit content in any genre, form, and structure., and this content may be accompanied (or not) by metadata in any form.

That said, we encourage customers to provide a minimal core set of descriptive Dublin Core-based kernel metadata, which we can use over time to provide additional and enhanced services.  We also encourage customers to adopt durable long-term  formats, with the following characteristics, when considering the long-term viability of their files:

  • Non-proprietary
  • Open, documented standard
  • In common usage by research community
  • Uses standard character encodings (ASCII, UTF-8)
  • Unencrypted
  • Uncompressed

Examples of preferred format choices:

  • Images: JPEG, JPEG2000, PNG, TIFF
  • Texts: HTML, XML, PDF/A, UTF-8, ASCII
  • Audio: AIFF, WAVE
  • Containers: GZIP, ZIP

Additional details and specifications for these and other format choices are documented in the CDL Guidelines for Digital Objects and the CDL Digital File Format Recommendations.

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