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An asset consists of metadata and a reference to where the actual file content is stored ie the file-system path. Both the metadata and file content can be versioned and previous version retrieved. The default behaviour if no particular version is specified is to use the most recent version. Multiple versions of file content impact your usage/quota.
namespaces are the Mediaflux name for the virtual folder structure that was introduced in the previous section.
metadata format - this tells you what queries can be done
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