Research data deposited in the UBC Dataverse Collection is digitally preserved
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Includes draft and restricted datasets
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Does not include derivatives, thumbnails, etc. created by Dataverse
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Downloads file from the storage, computes checksum, and compares with the value stored in a database
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Ensures the ongoing integrity of files stored in the repository
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All files are stored in the Ontario Library Research Cloud and backed up to IBM TSM tape nightly
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Up to 7 versions of files are retained in backup for 30 days
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Preservation-supporting functions in Dataverse:
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File format identification using JHOVE
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Transformation of tabular data formats into non-proprietary tabular text data files (.tab) upon ingest
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Generation of UNFs (Universal Numeric Fingerprints) for tabular data files
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Fixity remediation steps
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Error in file(s) identified through monthly scan – Examples: Empty (0-byte) file, missing file, checksum does not match stored value
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Compare with the copy in backup
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If backup resolves the issue, replace the bad file(s) with good versions on the file system
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Need help? Contact research.data@ubc.ca