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TDX is based on DSpace open-source code. It is software created by the
Massachusetts Institute of Technology (MIT) and Hewlett-Packard. Since 2021,
CSUC is a bronze member of the DuraSpace community that develops the
software. Its goal is to lead and innovate in open-source repositories aimed
at universities, libraries, research centers, and cultural heritage
organizations.
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Since 2011, TDX is cooperating in the MetaArchive network to ensure the
preservation of the theses. Also, to be a part of one of the worldwide
pioneer initiatives in the field. MetaArchive is an association that
supports, promotes, and distributes digital preservation to accomplish the
common interest for all its members: digitally preserve academic and
cultural documents for future generations. Therefore, it builds a network
that ensures that other institutions can keep a copy of their digital
content. It uses the LOCKSS software (developed by Stanford University) for
the preservation strategy. It is constantly comparing the theses' copies
available because in case of necessity, it can automatically restore any
change.
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TDX theses are available at OpenAIRE. OpenAIRE is a technical infrastructure
that collects research results from connected data providers. It aims to
establish an infrastructure of scholarly communication, open and
sustainable, responsible for global management, analysis, and manipulation,
and as a link for all the research results.
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TDX theses can be accessed from the European theses portal, thanks to the
coordination of the Universitat Politècnica de Catalunya.
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Since 2019, TDX serves as a safe repository for the Biblioteca de Catalunya,
for the preservation of the Legal Deposit. This distributed preservation
option allows the construction of a more sustainable model without losing
any conservation guarantees.
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Apart from daily security copies, once a month, a copy of all the theses is
made and sent to the Cooperative Repository GEPA in Lleida, to make sure
that at least one of the copies is afar from the original installation.
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Through Altmetric, there are displayed alternative metrics that show the
citations received on social media via unique identifiers such as DOI or
handle.
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