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• automatic extraction of metadata from tabular files and FITS;
• standard descriptive metadata schemas such as OAI DC, DDI (for statistical and social science), ISA-Tab (for biomedical), FITS (for astronomy);
• re-formatting of tabular data to simple open format text files;
• data and metadata versioning;
• database maintenance;
• checksum generation upon ingest (UNF for tabular data, MD5 for other files);
• persistent URL – DOI (minted by EZIDDataCite);
• deaccessioning of data, but not citation metadata, if necessary.

The TDL systems infrastructure includes bit-level fixity checking via Amazon EBS and S3 host service. For more information about security, backups and integrity checking, see also Information Security.

References

The Dataverse Project, “Harvard Dataverse Preservation Policy,” http://best-practices.dataverse.org/harvard-policies/harvard-preservation-policy.html

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