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help interpreting this log.
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Dataset
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update: {"subject"=>[nil, "Social Sciences"]}
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2018-02-09T16:04:45Z
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RelatedMaterial
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update: {"link"=>["http://dx.doi.org/10.5860/crl.78.2.201", "https://doi.org/10.5860/crl.78.2.16582"], "uri"=>["10.5860/crl.78.2.201", "10.5860/crl.78.2.16582"]}
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2017-11-20T20:11:36Z
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Dataset
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update: {"version_comment"=>[nil, ""]}
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2017-11-20T20:11:36Z
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RelatedMaterial
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update: {"link"=>["http://crl.acrl.org/content/early/2016/04/20/crl16-923.full.pdf+html", "http://dx.doi.org/10.5860/crl.78.2.201"], "uri"=>["http://crl.acrl.org/content/early/2016/04/20/crl16-923.full.pdf+html", "10.5860/crl.78.2.201"], "uri_type"=>["URL", "DOI"], "citation"=>["Wilkin, J. “How Large is the ‘Public Domain’? A comparative Analysis of Ringer’s 1961 Copyright Renewal Study and HathiTrust CRMS Data,” accepted to appear in College & Research Libraries, May 2017.", "Wilkin, J. (2017). “How Large is the ‘Public Domain’? A comparative Analysis of Ringer’s 1961 Copyright Renewal Study and HathiTrust CRMS Data,” College & Research Libraries, 2(78). doi:10.5860/crl.78.2.201"]}
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2017-02-01T20:45:58Z
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Dataset
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update: {"keywords"=>["copyright renewals; HathiTrust", "copyright; copyright renewals; HathiTrust"]}
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2016-08-19T19:22:53Z
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RelatedMaterial
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update: {"link"=>["http://crl.acrl.org", "http://crl.acrl.org/content/early/2016/04/20/crl16-923.full.pdf+html"], "uri"=>[nil, "http://crl.acrl.org/content/early/2016/04/20/crl16-923.full.pdf+html"], "uri_type"=>[nil, "URL"], "datacite_list"=>[nil, "IsSupplementTo"]}
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2016-08-19T19:16:35Z
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Dataset
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update: {"keywords"=>["copyright renewals", "copyright renewals; HathiTrust"]}
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2016-08-19T19:16:35Z
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